1// SPDX-License-Identifier: GPL-2.0 2/* 3 * This is rewrite of original c2c tool introduced in here: 4 * http://lwn.net/Articles/588866/ 5 * 6 * The original tool was changed to fit in current perf state. 7 * 8 * Original authors: 9 * Don Zickus <dzickus@redhat.com> 10 * Dick Fowles <fowles@inreach.com> 11 * Joe Mario <jmario@redhat.com> 12 */ 13#include <errno.h> 14#include <inttypes.h> 15#include <linux/compiler.h> 16#include <linux/err.h> 17#include <linux/kernel.h> 18#include <linux/stringify.h> 19#include <linux/zalloc.h> 20#include <asm/bug.h> 21#include <sys/param.h> 22#include "debug.h" 23#include "builtin.h" 24#include <perf/cpumap.h> 25#include <subcmd/pager.h> 26#include <subcmd/parse-options.h> 27#include "map_symbol.h" 28#include "mem-events.h" 29#include "session.h" 30#include "hist.h" 31#include "sort.h" 32#include "tool.h" 33#include "cacheline.h" 34#include "data.h" 35#include "event.h" 36#include "evlist.h" 37#include "evsel.h" 38#include "ui/browsers/hists.h" 39#include "thread.h" 40#include "mem2node.h" 41#include "symbol.h" 42#include "ui/ui.h" 43#include "ui/progress.h" 44#include "pmus.h" 45#include "string2.h" 46#include "util/util.h" 47 48struct c2c_hists { 49 struct hists hists; 50 struct perf_hpp_list list; 51 struct c2c_stats stats; 52}; 53 54struct compute_stats { 55 struct stats lcl_hitm; 56 struct stats rmt_hitm; 57 struct stats lcl_peer; 58 struct stats rmt_peer; 59 struct stats load; 60}; 61 62struct c2c_hist_entry { 63 struct c2c_hists *hists; 64 struct c2c_stats stats; 65 unsigned long *cpuset; 66 unsigned long *nodeset; 67 struct c2c_stats *node_stats; 68 unsigned int cacheline_idx; 69 70 struct compute_stats cstats; 71 72 unsigned long paddr; 73 unsigned long paddr_cnt; 74 bool paddr_zero; 75 char *nodestr; 76 77 /* 78 * must be at the end, 79 * because of its callchain dynamic entry 80 */ 81 struct hist_entry he; 82}; 83 84static char const *coalesce_default = "iaddr"; 85 86struct perf_c2c { 87 struct perf_tool tool; 88 struct c2c_hists hists; 89 struct mem2node mem2node; 90 91 unsigned long **nodes; 92 int nodes_cnt; 93 int cpus_cnt; 94 int *cpu2node; 95 int node_info; 96 97 bool show_src; 98 bool show_all; 99 bool use_stdio; 100 bool stats_only; 101 bool symbol_full; 102 bool stitch_lbr; 103 104 /* Shared cache line stats */ 105 struct c2c_stats shared_clines_stats; 106 int shared_clines; 107 108 int display; 109 110 const char *coalesce; 111 char *cl_sort; 112 char *cl_resort; 113 char *cl_output; 114}; 115 116enum { 117 DISPLAY_LCL_HITM, 118 DISPLAY_RMT_HITM, 119 DISPLAY_TOT_HITM, 120 DISPLAY_SNP_PEER, 121 DISPLAY_MAX, 122}; 123 124static const char *display_str[DISPLAY_MAX] = { 125 [DISPLAY_LCL_HITM] = "Local HITMs", 126 [DISPLAY_RMT_HITM] = "Remote HITMs", 127 [DISPLAY_TOT_HITM] = "Total HITMs", 128 [DISPLAY_SNP_PEER] = "Peer Snoop", 129}; 130 131static const struct option c2c_options[] = { 132 OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), 133 OPT_END() 134}; 135 136static struct perf_c2c c2c; 137 138static void *c2c_he_zalloc(size_t size) 139{ 140 struct c2c_hist_entry *c2c_he; 141 142 c2c_he = zalloc(size + sizeof(*c2c_he)); 143 if (!c2c_he) 144 return NULL; 145 146 c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt); 147 if (!c2c_he->cpuset) 148 goto out_free; 149 150 c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt); 151 if (!c2c_he->nodeset) 152 goto out_free; 153 154 c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats)); 155 if (!c2c_he->node_stats) 156 goto out_free; 157 158 init_stats(&c2c_he->cstats.lcl_hitm); 159 init_stats(&c2c_he->cstats.rmt_hitm); 160 init_stats(&c2c_he->cstats.lcl_peer); 161 init_stats(&c2c_he->cstats.rmt_peer); 162 init_stats(&c2c_he->cstats.load); 163 164 return &c2c_he->he; 165 166out_free: 167 zfree(&c2c_he->nodeset); 168 zfree(&c2c_he->cpuset); 169 free(c2c_he); 170 return NULL; 171} 172 173static void c2c_he_free(void *he) 174{ 175 struct c2c_hist_entry *c2c_he; 176 177 c2c_he = container_of(he, struct c2c_hist_entry, he); 178 if (c2c_he->hists) { 179 hists__delete_entries(&c2c_he->hists->hists); 180 zfree(&c2c_he->hists); 181 } 182 183 zfree(&c2c_he->cpuset); 184 zfree(&c2c_he->nodeset); 185 zfree(&c2c_he->nodestr); 186 zfree(&c2c_he->node_stats); 187 free(c2c_he); 188} 189 190static struct hist_entry_ops c2c_entry_ops = { 191 .new = c2c_he_zalloc, 192 .free = c2c_he_free, 193}; 194 195static int c2c_hists__init(struct c2c_hists *hists, 196 const char *sort, 197 int nr_header_lines); 198 199static struct c2c_hists* 200he__get_c2c_hists(struct hist_entry *he, 201 const char *sort, 202 int nr_header_lines) 203{ 204 struct c2c_hist_entry *c2c_he; 205 struct c2c_hists *hists; 206 int ret; 207 208 c2c_he = container_of(he, struct c2c_hist_entry, he); 209 if (c2c_he->hists) 210 return c2c_he->hists; 211 212 hists = c2c_he->hists = zalloc(sizeof(*hists)); 213 if (!hists) 214 return NULL; 215 216 ret = c2c_hists__init(hists, sort, nr_header_lines); 217 if (ret) { 218 free(hists); 219 return NULL; 220 } 221 222 return hists; 223} 224 225static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he, 226 struct perf_sample *sample) 227{ 228 if (WARN_ONCE(sample->cpu == (unsigned int) -1, 229 "WARNING: no sample cpu value")) 230 return; 231 232 __set_bit(sample->cpu, c2c_he->cpuset); 233} 234 235static void c2c_he__set_node(struct c2c_hist_entry *c2c_he, 236 struct perf_sample *sample) 237{ 238 int node; 239 240 if (!sample->phys_addr) { 241 c2c_he->paddr_zero = true; 242 return; 243 } 244 245 node = mem2node__node(&c2c.mem2node, sample->phys_addr); 246 if (WARN_ONCE(node < 0, "WARNING: failed to find node\n")) 247 return; 248 249 __set_bit(node, c2c_he->nodeset); 250 251 if (c2c_he->paddr != sample->phys_addr) { 252 c2c_he->paddr_cnt++; 253 c2c_he->paddr = sample->phys_addr; 254 } 255} 256 257static void compute_stats(struct c2c_hist_entry *c2c_he, 258 struct c2c_stats *stats, 259 u64 weight) 260{ 261 struct compute_stats *cstats = &c2c_he->cstats; 262 263 if (stats->rmt_hitm) 264 update_stats(&cstats->rmt_hitm, weight); 265 else if (stats->lcl_hitm) 266 update_stats(&cstats->lcl_hitm, weight); 267 else if (stats->rmt_peer) 268 update_stats(&cstats->rmt_peer, weight); 269 else if (stats->lcl_peer) 270 update_stats(&cstats->lcl_peer, weight); 271 else if (stats->load) 272 update_stats(&cstats->load, weight); 273} 274 275static int process_sample_event(struct perf_tool *tool __maybe_unused, 276 union perf_event *event, 277 struct perf_sample *sample, 278 struct evsel *evsel, 279 struct machine *machine) 280{ 281 struct c2c_hists *c2c_hists = &c2c.hists; 282 struct c2c_hist_entry *c2c_he; 283 struct c2c_stats stats = { .nr_entries = 0, }; 284 struct hist_entry *he; 285 struct addr_location al; 286 struct mem_info *mi, *mi_dup; 287 struct callchain_cursor *cursor; 288 int ret; 289 290 addr_location__init(&al); 291 if (machine__resolve(machine, &al, sample) < 0) { 292 pr_debug("problem processing %d event, skipping it.\n", 293 event->header.type); 294 ret = -1; 295 goto out; 296 } 297 298 if (c2c.stitch_lbr) 299 thread__set_lbr_stitch_enable(al.thread, true); 300 301 cursor = get_tls_callchain_cursor(); 302 ret = sample__resolve_callchain(sample, cursor, NULL, 303 evsel, &al, sysctl_perf_event_max_stack); 304 if (ret) 305 goto out; 306 307 mi = sample__resolve_mem(sample, &al); 308 if (mi == NULL) { 309 ret = -ENOMEM; 310 goto out; 311 } 312 313 /* 314 * The mi object is released in hists__add_entry_ops, 315 * if it gets sorted out into existing data, so we need 316 * to take the copy now. 317 */ 318 mi_dup = mem_info__get(mi); 319 320 c2c_decode_stats(&stats, mi); 321 322 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops, 323 &al, NULL, NULL, mi, NULL, 324 sample, true); 325 if (he == NULL) 326 goto free_mi; 327 328 c2c_he = container_of(he, struct c2c_hist_entry, he); 329 c2c_add_stats(&c2c_he->stats, &stats); 330 c2c_add_stats(&c2c_hists->stats, &stats); 331 332 c2c_he__set_cpu(c2c_he, sample); 333 c2c_he__set_node(c2c_he, sample); 334 335 hists__inc_nr_samples(&c2c_hists->hists, he->filtered); 336 ret = hist_entry__append_callchain(he, sample); 337 338 if (!ret) { 339 /* 340 * There's already been warning about missing 341 * sample's cpu value. Let's account all to 342 * node 0 in this case, without any further 343 * warning. 344 * 345 * Doing node stats only for single callchain data. 346 */ 347 int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu; 348 int node = c2c.cpu2node[cpu]; 349 350 mi = mi_dup; 351 352 c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2); 353 if (!c2c_hists) 354 goto free_mi; 355 356 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops, 357 &al, NULL, NULL, mi, NULL, 358 sample, true); 359 if (he == NULL) 360 goto free_mi; 361 362 c2c_he = container_of(he, struct c2c_hist_entry, he); 363 c2c_add_stats(&c2c_he->stats, &stats); 364 c2c_add_stats(&c2c_hists->stats, &stats); 365 c2c_add_stats(&c2c_he->node_stats[node], &stats); 366 367 compute_stats(c2c_he, &stats, sample->weight); 368 369 c2c_he__set_cpu(c2c_he, sample); 370 c2c_he__set_node(c2c_he, sample); 371 372 hists__inc_nr_samples(&c2c_hists->hists, he->filtered); 373 ret = hist_entry__append_callchain(he, sample); 374 } 375 376out: 377 addr_location__exit(&al); 378 return ret; 379 380free_mi: 381 mem_info__put(mi_dup); 382 mem_info__put(mi); 383 ret = -ENOMEM; 384 goto out; 385} 386 387static struct perf_c2c c2c = { 388 .tool = { 389 .sample = process_sample_event, 390 .mmap = perf_event__process_mmap, 391 .mmap2 = perf_event__process_mmap2, 392 .comm = perf_event__process_comm, 393 .exit = perf_event__process_exit, 394 .fork = perf_event__process_fork, 395 .lost = perf_event__process_lost, 396 .attr = perf_event__process_attr, 397 .auxtrace_info = perf_event__process_auxtrace_info, 398 .auxtrace = perf_event__process_auxtrace, 399 .auxtrace_error = perf_event__process_auxtrace_error, 400 .ordered_events = true, 401 .ordering_requires_timestamps = true, 402 }, 403}; 404 405static const char * const c2c_usage[] = { 406 "perf c2c {record|report}", 407 NULL 408}; 409 410static const char * const __usage_report[] = { 411 "perf c2c report", 412 NULL 413}; 414 415static const char * const *report_c2c_usage = __usage_report; 416 417#define C2C_HEADER_MAX 2 418 419struct c2c_header { 420 struct { 421 const char *text; 422 int span; 423 } line[C2C_HEADER_MAX]; 424}; 425 426struct c2c_dimension { 427 struct c2c_header header; 428 const char *name; 429 int width; 430 struct sort_entry *se; 431 432 int64_t (*cmp)(struct perf_hpp_fmt *fmt, 433 struct hist_entry *, struct hist_entry *); 434 int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 435 struct hist_entry *he); 436 int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 437 struct hist_entry *he); 438}; 439 440struct c2c_fmt { 441 struct perf_hpp_fmt fmt; 442 struct c2c_dimension *dim; 443}; 444 445#define SYMBOL_WIDTH 30 446 447static struct c2c_dimension dim_symbol; 448static struct c2c_dimension dim_srcline; 449 450static int symbol_width(struct hists *hists, struct sort_entry *se) 451{ 452 int width = hists__col_len(hists, se->se_width_idx); 453 454 if (!c2c.symbol_full) 455 width = MIN(width, SYMBOL_WIDTH); 456 457 return width; 458} 459 460static int c2c_width(struct perf_hpp_fmt *fmt, 461 struct perf_hpp *hpp __maybe_unused, 462 struct hists *hists) 463{ 464 struct c2c_fmt *c2c_fmt; 465 struct c2c_dimension *dim; 466 467 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 468 dim = c2c_fmt->dim; 469 470 if (dim == &dim_symbol || dim == &dim_srcline) 471 return symbol_width(hists, dim->se); 472 473 return dim->se ? hists__col_len(hists, dim->se->se_width_idx) : 474 c2c_fmt->dim->width; 475} 476 477static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 478 struct hists *hists, int line, int *span) 479{ 480 struct perf_hpp_list *hpp_list = hists->hpp_list; 481 struct c2c_fmt *c2c_fmt; 482 struct c2c_dimension *dim; 483 const char *text = NULL; 484 int width = c2c_width(fmt, hpp, hists); 485 486 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 487 dim = c2c_fmt->dim; 488 489 if (dim->se) { 490 text = dim->header.line[line].text; 491 /* Use the last line from sort_entry if not defined. */ 492 if (!text && (line == hpp_list->nr_header_lines - 1)) 493 text = dim->se->se_header; 494 } else { 495 text = dim->header.line[line].text; 496 497 if (*span) { 498 (*span)--; 499 return 0; 500 } else { 501 *span = dim->header.line[line].span; 502 } 503 } 504 505 if (text == NULL) 506 text = ""; 507 508 return scnprintf(hpp->buf, hpp->size, "%*s", width, text); 509} 510 511#define HEX_STR(__s, __v) \ 512({ \ 513 scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \ 514 __s; \ 515}) 516 517static int64_t 518dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 519 struct hist_entry *left, struct hist_entry *right) 520{ 521 return sort__dcacheline_cmp(left, right); 522} 523 524static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 525 struct hist_entry *he) 526{ 527 uint64_t addr = 0; 528 int width = c2c_width(fmt, hpp, he->hists); 529 char buf[20]; 530 531 if (he->mem_info) 532 addr = cl_address(he->mem_info->daddr.addr, chk_double_cl); 533 534 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr)); 535} 536 537static int 538dcacheline_node_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 539 struct hist_entry *he) 540{ 541 struct c2c_hist_entry *c2c_he; 542 int width = c2c_width(fmt, hpp, he->hists); 543 544 c2c_he = container_of(he, struct c2c_hist_entry, he); 545 if (WARN_ON_ONCE(!c2c_he->nodestr)) 546 return 0; 547 548 return scnprintf(hpp->buf, hpp->size, "%*s", width, c2c_he->nodestr); 549} 550 551static int 552dcacheline_node_count(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 553 struct hist_entry *he) 554{ 555 struct c2c_hist_entry *c2c_he; 556 int width = c2c_width(fmt, hpp, he->hists); 557 558 c2c_he = container_of(he, struct c2c_hist_entry, he); 559 return scnprintf(hpp->buf, hpp->size, "%*lu", width, c2c_he->paddr_cnt); 560} 561 562static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 563 struct hist_entry *he) 564{ 565 uint64_t addr = 0; 566 int width = c2c_width(fmt, hpp, he->hists); 567 char buf[20]; 568 569 if (he->mem_info) 570 addr = cl_offset(he->mem_info->daddr.al_addr, chk_double_cl); 571 572 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr)); 573} 574 575static int64_t 576offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 577 struct hist_entry *left, struct hist_entry *right) 578{ 579 uint64_t l = 0, r = 0; 580 581 if (left->mem_info) 582 l = cl_offset(left->mem_info->daddr.addr, chk_double_cl); 583 584 if (right->mem_info) 585 r = cl_offset(right->mem_info->daddr.addr, chk_double_cl); 586 587 return (int64_t)(r - l); 588} 589 590static int 591iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 592 struct hist_entry *he) 593{ 594 uint64_t addr = 0; 595 int width = c2c_width(fmt, hpp, he->hists); 596 char buf[20]; 597 598 if (he->mem_info) 599 addr = he->mem_info->iaddr.addr; 600 601 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr)); 602} 603 604static int64_t 605iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 606 struct hist_entry *left, struct hist_entry *right) 607{ 608 return sort__iaddr_cmp(left, right); 609} 610 611static int 612tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 613 struct hist_entry *he) 614{ 615 struct c2c_hist_entry *c2c_he; 616 int width = c2c_width(fmt, hpp, he->hists); 617 unsigned int tot_hitm; 618 619 c2c_he = container_of(he, struct c2c_hist_entry, he); 620 tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm; 621 622 return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm); 623} 624 625static int64_t 626tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 627 struct hist_entry *left, struct hist_entry *right) 628{ 629 struct c2c_hist_entry *c2c_left; 630 struct c2c_hist_entry *c2c_right; 631 uint64_t tot_hitm_left; 632 uint64_t tot_hitm_right; 633 634 c2c_left = container_of(left, struct c2c_hist_entry, he); 635 c2c_right = container_of(right, struct c2c_hist_entry, he); 636 637 tot_hitm_left = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm; 638 tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm; 639 640 return tot_hitm_left - tot_hitm_right; 641} 642 643#define STAT_FN_ENTRY(__f) \ 644static int \ 645__f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, \ 646 struct hist_entry *he) \ 647{ \ 648 struct c2c_hist_entry *c2c_he; \ 649 int width = c2c_width(fmt, hpp, he->hists); \ 650 \ 651 c2c_he = container_of(he, struct c2c_hist_entry, he); \ 652 return scnprintf(hpp->buf, hpp->size, "%*u", width, \ 653 c2c_he->stats.__f); \ 654} 655 656#define STAT_FN_CMP(__f) \ 657static int64_t \ 658__f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused, \ 659 struct hist_entry *left, struct hist_entry *right) \ 660{ \ 661 struct c2c_hist_entry *c2c_left, *c2c_right; \ 662 \ 663 c2c_left = container_of(left, struct c2c_hist_entry, he); \ 664 c2c_right = container_of(right, struct c2c_hist_entry, he); \ 665 return (uint64_t) c2c_left->stats.__f - \ 666 (uint64_t) c2c_right->stats.__f; \ 667} 668 669#define STAT_FN(__f) \ 670 STAT_FN_ENTRY(__f) \ 671 STAT_FN_CMP(__f) 672 673STAT_FN(rmt_hitm) 674STAT_FN(lcl_hitm) 675STAT_FN(rmt_peer) 676STAT_FN(lcl_peer) 677STAT_FN(tot_peer) 678STAT_FN(store) 679STAT_FN(st_l1hit) 680STAT_FN(st_l1miss) 681STAT_FN(st_na) 682STAT_FN(ld_fbhit) 683STAT_FN(ld_l1hit) 684STAT_FN(ld_l2hit) 685STAT_FN(ld_llchit) 686STAT_FN(rmt_hit) 687 688static uint64_t get_load_llc_misses(struct c2c_stats *stats) 689{ 690 return stats->lcl_dram + 691 stats->rmt_dram + 692 stats->rmt_hitm + 693 stats->rmt_hit; 694} 695 696static uint64_t get_load_cache_hits(struct c2c_stats *stats) 697{ 698 return stats->ld_fbhit + 699 stats->ld_l1hit + 700 stats->ld_l2hit + 701 stats->ld_llchit + 702 stats->lcl_hitm; 703} 704 705static uint64_t get_stores(struct c2c_stats *stats) 706{ 707 return stats->st_l1hit + 708 stats->st_l1miss + 709 stats->st_na; 710} 711 712static uint64_t total_records(struct c2c_stats *stats) 713{ 714 return get_load_llc_misses(stats) + 715 get_load_cache_hits(stats) + 716 get_stores(stats); 717} 718 719static int 720tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 721 struct hist_entry *he) 722{ 723 struct c2c_hist_entry *c2c_he; 724 int width = c2c_width(fmt, hpp, he->hists); 725 uint64_t tot_recs; 726 727 c2c_he = container_of(he, struct c2c_hist_entry, he); 728 tot_recs = total_records(&c2c_he->stats); 729 730 return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs); 731} 732 733static int64_t 734tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 735 struct hist_entry *left, struct hist_entry *right) 736{ 737 struct c2c_hist_entry *c2c_left; 738 struct c2c_hist_entry *c2c_right; 739 uint64_t tot_recs_left; 740 uint64_t tot_recs_right; 741 742 c2c_left = container_of(left, struct c2c_hist_entry, he); 743 c2c_right = container_of(right, struct c2c_hist_entry, he); 744 745 tot_recs_left = total_records(&c2c_left->stats); 746 tot_recs_right = total_records(&c2c_right->stats); 747 748 return tot_recs_left - tot_recs_right; 749} 750 751static uint64_t total_loads(struct c2c_stats *stats) 752{ 753 return get_load_llc_misses(stats) + 754 get_load_cache_hits(stats); 755} 756 757static int 758tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 759 struct hist_entry *he) 760{ 761 struct c2c_hist_entry *c2c_he; 762 int width = c2c_width(fmt, hpp, he->hists); 763 uint64_t tot_recs; 764 765 c2c_he = container_of(he, struct c2c_hist_entry, he); 766 tot_recs = total_loads(&c2c_he->stats); 767 768 return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs); 769} 770 771static int64_t 772tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 773 struct hist_entry *left, struct hist_entry *right) 774{ 775 struct c2c_hist_entry *c2c_left; 776 struct c2c_hist_entry *c2c_right; 777 uint64_t tot_recs_left; 778 uint64_t tot_recs_right; 779 780 c2c_left = container_of(left, struct c2c_hist_entry, he); 781 c2c_right = container_of(right, struct c2c_hist_entry, he); 782 783 tot_recs_left = total_loads(&c2c_left->stats); 784 tot_recs_right = total_loads(&c2c_right->stats); 785 786 return tot_recs_left - tot_recs_right; 787} 788 789typedef double (get_percent_cb)(struct c2c_hist_entry *); 790 791static int 792percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 793 struct hist_entry *he, get_percent_cb get_percent) 794{ 795 struct c2c_hist_entry *c2c_he; 796 int width = c2c_width(fmt, hpp, he->hists); 797 double per; 798 799 c2c_he = container_of(he, struct c2c_hist_entry, he); 800 per = get_percent(c2c_he); 801 802#ifdef HAVE_SLANG_SUPPORT 803 if (use_browser) 804 return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per); 805#endif 806 return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per); 807} 808 809static double percent_costly_snoop(struct c2c_hist_entry *c2c_he) 810{ 811 struct c2c_hists *hists; 812 struct c2c_stats *stats; 813 struct c2c_stats *total; 814 int tot = 0, st = 0; 815 double p; 816 817 hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); 818 stats = &c2c_he->stats; 819 total = &hists->stats; 820 821 switch (c2c.display) { 822 case DISPLAY_RMT_HITM: 823 st = stats->rmt_hitm; 824 tot = total->rmt_hitm; 825 break; 826 case DISPLAY_LCL_HITM: 827 st = stats->lcl_hitm; 828 tot = total->lcl_hitm; 829 break; 830 case DISPLAY_TOT_HITM: 831 st = stats->tot_hitm; 832 tot = total->tot_hitm; 833 break; 834 case DISPLAY_SNP_PEER: 835 st = stats->tot_peer; 836 tot = total->tot_peer; 837 break; 838 default: 839 break; 840 } 841 842 p = tot ? (double) st / tot : 0; 843 844 return 100 * p; 845} 846 847#define PERC_STR(__s, __v) \ 848({ \ 849 scnprintf(__s, sizeof(__s), "%.2F%%", __v); \ 850 __s; \ 851}) 852 853static int 854percent_costly_snoop_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 855 struct hist_entry *he) 856{ 857 struct c2c_hist_entry *c2c_he; 858 int width = c2c_width(fmt, hpp, he->hists); 859 char buf[10]; 860 double per; 861 862 c2c_he = container_of(he, struct c2c_hist_entry, he); 863 per = percent_costly_snoop(c2c_he); 864 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 865} 866 867static int 868percent_costly_snoop_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 869 struct hist_entry *he) 870{ 871 return percent_color(fmt, hpp, he, percent_costly_snoop); 872} 873 874static int64_t 875percent_costly_snoop_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 876 struct hist_entry *left, struct hist_entry *right) 877{ 878 struct c2c_hist_entry *c2c_left; 879 struct c2c_hist_entry *c2c_right; 880 double per_left; 881 double per_right; 882 883 c2c_left = container_of(left, struct c2c_hist_entry, he); 884 c2c_right = container_of(right, struct c2c_hist_entry, he); 885 886 per_left = percent_costly_snoop(c2c_left); 887 per_right = percent_costly_snoop(c2c_right); 888 889 return per_left - per_right; 890} 891 892static struct c2c_stats *he_stats(struct hist_entry *he) 893{ 894 struct c2c_hist_entry *c2c_he; 895 896 c2c_he = container_of(he, struct c2c_hist_entry, he); 897 return &c2c_he->stats; 898} 899 900static struct c2c_stats *total_stats(struct hist_entry *he) 901{ 902 struct c2c_hists *hists; 903 904 hists = container_of(he->hists, struct c2c_hists, hists); 905 return &hists->stats; 906} 907 908static double percent(u32 st, u32 tot) 909{ 910 return tot ? 100. * (double) st / (double) tot : 0; 911} 912 913#define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f) 914 915#define PERCENT_FN(__f) \ 916static double percent_ ## __f(struct c2c_hist_entry *c2c_he) \ 917{ \ 918 struct c2c_hists *hists; \ 919 \ 920 hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); \ 921 return percent(c2c_he->stats.__f, hists->stats.__f); \ 922} 923 924PERCENT_FN(rmt_hitm) 925PERCENT_FN(lcl_hitm) 926PERCENT_FN(rmt_peer) 927PERCENT_FN(lcl_peer) 928PERCENT_FN(st_l1hit) 929PERCENT_FN(st_l1miss) 930PERCENT_FN(st_na) 931 932static int 933percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 934 struct hist_entry *he) 935{ 936 int width = c2c_width(fmt, hpp, he->hists); 937 double per = PERCENT(he, rmt_hitm); 938 char buf[10]; 939 940 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 941} 942 943static int 944percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 945 struct hist_entry *he) 946{ 947 return percent_color(fmt, hpp, he, percent_rmt_hitm); 948} 949 950static int64_t 951percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 952 struct hist_entry *left, struct hist_entry *right) 953{ 954 double per_left; 955 double per_right; 956 957 per_left = PERCENT(left, rmt_hitm); 958 per_right = PERCENT(right, rmt_hitm); 959 960 return per_left - per_right; 961} 962 963static int 964percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 965 struct hist_entry *he) 966{ 967 int width = c2c_width(fmt, hpp, he->hists); 968 double per = PERCENT(he, lcl_hitm); 969 char buf[10]; 970 971 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 972} 973 974static int 975percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 976 struct hist_entry *he) 977{ 978 return percent_color(fmt, hpp, he, percent_lcl_hitm); 979} 980 981static int64_t 982percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 983 struct hist_entry *left, struct hist_entry *right) 984{ 985 double per_left; 986 double per_right; 987 988 per_left = PERCENT(left, lcl_hitm); 989 per_right = PERCENT(right, lcl_hitm); 990 991 return per_left - per_right; 992} 993 994static int 995percent_lcl_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 996 struct hist_entry *he) 997{ 998 int width = c2c_width(fmt, hpp, he->hists); 999 double per = PERCENT(he, lcl_peer); 1000 char buf[10]; 1001 1002 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 1003} 1004 1005static int 1006percent_lcl_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1007 struct hist_entry *he) 1008{ 1009 return percent_color(fmt, hpp, he, percent_lcl_peer); 1010} 1011 1012static int64_t 1013percent_lcl_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1014 struct hist_entry *left, struct hist_entry *right) 1015{ 1016 double per_left; 1017 double per_right; 1018 1019 per_left = PERCENT(left, lcl_peer); 1020 per_right = PERCENT(right, lcl_peer); 1021 1022 return per_left - per_right; 1023} 1024 1025static int 1026percent_rmt_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1027 struct hist_entry *he) 1028{ 1029 int width = c2c_width(fmt, hpp, he->hists); 1030 double per = PERCENT(he, rmt_peer); 1031 char buf[10]; 1032 1033 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 1034} 1035 1036static int 1037percent_rmt_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1038 struct hist_entry *he) 1039{ 1040 return percent_color(fmt, hpp, he, percent_rmt_peer); 1041} 1042 1043static int64_t 1044percent_rmt_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1045 struct hist_entry *left, struct hist_entry *right) 1046{ 1047 double per_left; 1048 double per_right; 1049 1050 per_left = PERCENT(left, rmt_peer); 1051 per_right = PERCENT(right, rmt_peer); 1052 1053 return per_left - per_right; 1054} 1055 1056static int 1057percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1058 struct hist_entry *he) 1059{ 1060 int width = c2c_width(fmt, hpp, he->hists); 1061 double per = PERCENT(he, st_l1hit); 1062 char buf[10]; 1063 1064 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 1065} 1066 1067static int 1068percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1069 struct hist_entry *he) 1070{ 1071 return percent_color(fmt, hpp, he, percent_st_l1hit); 1072} 1073 1074static int64_t 1075percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1076 struct hist_entry *left, struct hist_entry *right) 1077{ 1078 double per_left; 1079 double per_right; 1080 1081 per_left = PERCENT(left, st_l1hit); 1082 per_right = PERCENT(right, st_l1hit); 1083 1084 return per_left - per_right; 1085} 1086 1087static int 1088percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1089 struct hist_entry *he) 1090{ 1091 int width = c2c_width(fmt, hpp, he->hists); 1092 double per = PERCENT(he, st_l1miss); 1093 char buf[10]; 1094 1095 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 1096} 1097 1098static int 1099percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1100 struct hist_entry *he) 1101{ 1102 return percent_color(fmt, hpp, he, percent_st_l1miss); 1103} 1104 1105static int64_t 1106percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1107 struct hist_entry *left, struct hist_entry *right) 1108{ 1109 double per_left; 1110 double per_right; 1111 1112 per_left = PERCENT(left, st_l1miss); 1113 per_right = PERCENT(right, st_l1miss); 1114 1115 return per_left - per_right; 1116} 1117 1118static int 1119percent_stores_na_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1120 struct hist_entry *he) 1121{ 1122 int width = c2c_width(fmt, hpp, he->hists); 1123 double per = PERCENT(he, st_na); 1124 char buf[10]; 1125 1126 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per)); 1127} 1128 1129static int 1130percent_stores_na_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1131 struct hist_entry *he) 1132{ 1133 return percent_color(fmt, hpp, he, percent_st_na); 1134} 1135 1136static int64_t 1137percent_stores_na_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1138 struct hist_entry *left, struct hist_entry *right) 1139{ 1140 double per_left; 1141 double per_right; 1142 1143 per_left = PERCENT(left, st_na); 1144 per_right = PERCENT(right, st_na); 1145 1146 return per_left - per_right; 1147} 1148 1149STAT_FN(lcl_dram) 1150STAT_FN(rmt_dram) 1151 1152static int 1153pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1154 struct hist_entry *he) 1155{ 1156 int width = c2c_width(fmt, hpp, he->hists); 1157 1158 return scnprintf(hpp->buf, hpp->size, "%*d", width, thread__pid(he->thread)); 1159} 1160 1161static int64_t 1162pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1163 struct hist_entry *left, struct hist_entry *right) 1164{ 1165 return thread__pid(left->thread) - thread__pid(right->thread); 1166} 1167 1168static int64_t 1169empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused, 1170 struct hist_entry *left __maybe_unused, 1171 struct hist_entry *right __maybe_unused) 1172{ 1173 return 0; 1174} 1175 1176static int display_metrics(struct perf_hpp *hpp, u32 val, u32 sum) 1177{ 1178 int ret; 1179 1180 if (sum != 0) 1181 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ", 1182 percent(val, sum)); 1183 else 1184 ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a"); 1185 1186 return ret; 1187} 1188 1189static int 1190node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp, 1191 struct hist_entry *he) 1192{ 1193 struct c2c_hist_entry *c2c_he; 1194 bool first = true; 1195 int node; 1196 int ret = 0; 1197 1198 c2c_he = container_of(he, struct c2c_hist_entry, he); 1199 1200 for (node = 0; node < c2c.nodes_cnt; node++) { 1201 DECLARE_BITMAP(set, c2c.cpus_cnt); 1202 1203 bitmap_zero(set, c2c.cpus_cnt); 1204 bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt); 1205 1206 if (bitmap_empty(set, c2c.cpus_cnt)) { 1207 if (c2c.node_info == 1) { 1208 ret = scnprintf(hpp->buf, hpp->size, "%21s", " "); 1209 advance_hpp(hpp, ret); 1210 } 1211 continue; 1212 } 1213 1214 if (!first) { 1215 ret = scnprintf(hpp->buf, hpp->size, " "); 1216 advance_hpp(hpp, ret); 1217 } 1218 1219 switch (c2c.node_info) { 1220 case 0: 1221 ret = scnprintf(hpp->buf, hpp->size, "%2d", node); 1222 advance_hpp(hpp, ret); 1223 break; 1224 case 1: 1225 { 1226 int num = bitmap_weight(set, c2c.cpus_cnt); 1227 struct c2c_stats *stats = &c2c_he->node_stats[node]; 1228 1229 ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num); 1230 advance_hpp(hpp, ret); 1231 1232 switch (c2c.display) { 1233 case DISPLAY_RMT_HITM: 1234 ret = display_metrics(hpp, stats->rmt_hitm, 1235 c2c_he->stats.rmt_hitm); 1236 break; 1237 case DISPLAY_LCL_HITM: 1238 ret = display_metrics(hpp, stats->lcl_hitm, 1239 c2c_he->stats.lcl_hitm); 1240 break; 1241 case DISPLAY_TOT_HITM: 1242 ret = display_metrics(hpp, stats->tot_hitm, 1243 c2c_he->stats.tot_hitm); 1244 break; 1245 case DISPLAY_SNP_PEER: 1246 ret = display_metrics(hpp, stats->tot_peer, 1247 c2c_he->stats.tot_peer); 1248 break; 1249 default: 1250 break; 1251 } 1252 1253 advance_hpp(hpp, ret); 1254 1255 if (c2c_he->stats.store > 0) { 1256 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}", 1257 percent(stats->store, c2c_he->stats.store)); 1258 } else { 1259 ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a"); 1260 } 1261 1262 advance_hpp(hpp, ret); 1263 break; 1264 } 1265 case 2: 1266 ret = scnprintf(hpp->buf, hpp->size, "%2d{", node); 1267 advance_hpp(hpp, ret); 1268 1269 ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size); 1270 advance_hpp(hpp, ret); 1271 1272 ret = scnprintf(hpp->buf, hpp->size, "}"); 1273 advance_hpp(hpp, ret); 1274 break; 1275 default: 1276 break; 1277 } 1278 1279 first = false; 1280 } 1281 1282 return 0; 1283} 1284 1285static int 1286mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1287 struct hist_entry *he, double mean) 1288{ 1289 int width = c2c_width(fmt, hpp, he->hists); 1290 char buf[10]; 1291 1292 scnprintf(buf, 10, "%6.0f", mean); 1293 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf); 1294} 1295 1296#define MEAN_ENTRY(__func, __val) \ 1297static int \ 1298__func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he) \ 1299{ \ 1300 struct c2c_hist_entry *c2c_he; \ 1301 c2c_he = container_of(he, struct c2c_hist_entry, he); \ 1302 return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val)); \ 1303} 1304 1305MEAN_ENTRY(mean_rmt_entry, rmt_hitm); 1306MEAN_ENTRY(mean_lcl_entry, lcl_hitm); 1307MEAN_ENTRY(mean_load_entry, load); 1308MEAN_ENTRY(mean_rmt_peer_entry, rmt_peer); 1309MEAN_ENTRY(mean_lcl_peer_entry, lcl_peer); 1310 1311static int 1312cpucnt_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1313 struct hist_entry *he) 1314{ 1315 struct c2c_hist_entry *c2c_he; 1316 int width = c2c_width(fmt, hpp, he->hists); 1317 char buf[10]; 1318 1319 c2c_he = container_of(he, struct c2c_hist_entry, he); 1320 1321 scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt)); 1322 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf); 1323} 1324 1325static int 1326cl_idx_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1327 struct hist_entry *he) 1328{ 1329 struct c2c_hist_entry *c2c_he; 1330 int width = c2c_width(fmt, hpp, he->hists); 1331 char buf[10]; 1332 1333 c2c_he = container_of(he, struct c2c_hist_entry, he); 1334 1335 scnprintf(buf, 10, "%u", c2c_he->cacheline_idx); 1336 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf); 1337} 1338 1339static int 1340cl_idx_empty_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1341 struct hist_entry *he) 1342{ 1343 int width = c2c_width(fmt, hpp, he->hists); 1344 1345 return scnprintf(hpp->buf, hpp->size, "%*s", width, ""); 1346} 1347 1348#define HEADER_LOW(__h) \ 1349 { \ 1350 .line[1] = { \ 1351 .text = __h, \ 1352 }, \ 1353 } 1354 1355#define HEADER_BOTH(__h0, __h1) \ 1356 { \ 1357 .line[0] = { \ 1358 .text = __h0, \ 1359 }, \ 1360 .line[1] = { \ 1361 .text = __h1, \ 1362 }, \ 1363 } 1364 1365#define HEADER_SPAN(__h0, __h1, __s) \ 1366 { \ 1367 .line[0] = { \ 1368 .text = __h0, \ 1369 .span = __s, \ 1370 }, \ 1371 .line[1] = { \ 1372 .text = __h1, \ 1373 }, \ 1374 } 1375 1376#define HEADER_SPAN_LOW(__h) \ 1377 { \ 1378 .line[1] = { \ 1379 .text = __h, \ 1380 }, \ 1381 } 1382 1383static struct c2c_dimension dim_dcacheline = { 1384 .header = HEADER_SPAN("--- Cacheline ----", "Address", 2), 1385 .name = "dcacheline", 1386 .cmp = dcacheline_cmp, 1387 .entry = dcacheline_entry, 1388 .width = 18, 1389}; 1390 1391static struct c2c_dimension dim_dcacheline_node = { 1392 .header = HEADER_LOW("Node"), 1393 .name = "dcacheline_node", 1394 .cmp = empty_cmp, 1395 .entry = dcacheline_node_entry, 1396 .width = 4, 1397}; 1398 1399static struct c2c_dimension dim_dcacheline_count = { 1400 .header = HEADER_LOW("PA cnt"), 1401 .name = "dcacheline_count", 1402 .cmp = empty_cmp, 1403 .entry = dcacheline_node_count, 1404 .width = 6, 1405}; 1406 1407static struct c2c_header header_offset_tui = HEADER_SPAN("-----", "Off", 2); 1408 1409static struct c2c_dimension dim_offset = { 1410 .header = HEADER_SPAN("--- Data address -", "Offset", 2), 1411 .name = "offset", 1412 .cmp = offset_cmp, 1413 .entry = offset_entry, 1414 .width = 18, 1415}; 1416 1417static struct c2c_dimension dim_offset_node = { 1418 .header = HEADER_LOW("Node"), 1419 .name = "offset_node", 1420 .cmp = empty_cmp, 1421 .entry = dcacheline_node_entry, 1422 .width = 4, 1423}; 1424 1425static struct c2c_dimension dim_iaddr = { 1426 .header = HEADER_LOW("Code address"), 1427 .name = "iaddr", 1428 .cmp = iaddr_cmp, 1429 .entry = iaddr_entry, 1430 .width = 18, 1431}; 1432 1433static struct c2c_dimension dim_tot_hitm = { 1434 .header = HEADER_SPAN("------- Load Hitm -------", "Total", 2), 1435 .name = "tot_hitm", 1436 .cmp = tot_hitm_cmp, 1437 .entry = tot_hitm_entry, 1438 .width = 7, 1439}; 1440 1441static struct c2c_dimension dim_lcl_hitm = { 1442 .header = HEADER_SPAN_LOW("LclHitm"), 1443 .name = "lcl_hitm", 1444 .cmp = lcl_hitm_cmp, 1445 .entry = lcl_hitm_entry, 1446 .width = 7, 1447}; 1448 1449static struct c2c_dimension dim_rmt_hitm = { 1450 .header = HEADER_SPAN_LOW("RmtHitm"), 1451 .name = "rmt_hitm", 1452 .cmp = rmt_hitm_cmp, 1453 .entry = rmt_hitm_entry, 1454 .width = 7, 1455}; 1456 1457static struct c2c_dimension dim_tot_peer = { 1458 .header = HEADER_SPAN("------- Load Peer -------", "Total", 2), 1459 .name = "tot_peer", 1460 .cmp = tot_peer_cmp, 1461 .entry = tot_peer_entry, 1462 .width = 7, 1463}; 1464 1465static struct c2c_dimension dim_lcl_peer = { 1466 .header = HEADER_SPAN_LOW("Local"), 1467 .name = "lcl_peer", 1468 .cmp = lcl_peer_cmp, 1469 .entry = lcl_peer_entry, 1470 .width = 7, 1471}; 1472 1473static struct c2c_dimension dim_rmt_peer = { 1474 .header = HEADER_SPAN_LOW("Remote"), 1475 .name = "rmt_peer", 1476 .cmp = rmt_peer_cmp, 1477 .entry = rmt_peer_entry, 1478 .width = 7, 1479}; 1480 1481static struct c2c_dimension dim_cl_rmt_hitm = { 1482 .header = HEADER_SPAN("----- HITM -----", "Rmt", 1), 1483 .name = "cl_rmt_hitm", 1484 .cmp = rmt_hitm_cmp, 1485 .entry = rmt_hitm_entry, 1486 .width = 7, 1487}; 1488 1489static struct c2c_dimension dim_cl_lcl_hitm = { 1490 .header = HEADER_SPAN_LOW("Lcl"), 1491 .name = "cl_lcl_hitm", 1492 .cmp = lcl_hitm_cmp, 1493 .entry = lcl_hitm_entry, 1494 .width = 7, 1495}; 1496 1497static struct c2c_dimension dim_cl_rmt_peer = { 1498 .header = HEADER_SPAN("----- Peer -----", "Rmt", 1), 1499 .name = "cl_rmt_peer", 1500 .cmp = rmt_peer_cmp, 1501 .entry = rmt_peer_entry, 1502 .width = 7, 1503}; 1504 1505static struct c2c_dimension dim_cl_lcl_peer = { 1506 .header = HEADER_SPAN_LOW("Lcl"), 1507 .name = "cl_lcl_peer", 1508 .cmp = lcl_peer_cmp, 1509 .entry = lcl_peer_entry, 1510 .width = 7, 1511}; 1512 1513static struct c2c_dimension dim_tot_stores = { 1514 .header = HEADER_BOTH("Total", "Stores"), 1515 .name = "tot_stores", 1516 .cmp = store_cmp, 1517 .entry = store_entry, 1518 .width = 7, 1519}; 1520 1521static struct c2c_dimension dim_stores_l1hit = { 1522 .header = HEADER_SPAN("--------- Stores --------", "L1Hit", 2), 1523 .name = "stores_l1hit", 1524 .cmp = st_l1hit_cmp, 1525 .entry = st_l1hit_entry, 1526 .width = 7, 1527}; 1528 1529static struct c2c_dimension dim_stores_l1miss = { 1530 .header = HEADER_SPAN_LOW("L1Miss"), 1531 .name = "stores_l1miss", 1532 .cmp = st_l1miss_cmp, 1533 .entry = st_l1miss_entry, 1534 .width = 7, 1535}; 1536 1537static struct c2c_dimension dim_stores_na = { 1538 .header = HEADER_SPAN_LOW("N/A"), 1539 .name = "stores_na", 1540 .cmp = st_na_cmp, 1541 .entry = st_na_entry, 1542 .width = 7, 1543}; 1544 1545static struct c2c_dimension dim_cl_stores_l1hit = { 1546 .header = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2), 1547 .name = "cl_stores_l1hit", 1548 .cmp = st_l1hit_cmp, 1549 .entry = st_l1hit_entry, 1550 .width = 7, 1551}; 1552 1553static struct c2c_dimension dim_cl_stores_l1miss = { 1554 .header = HEADER_SPAN_LOW("L1 Miss"), 1555 .name = "cl_stores_l1miss", 1556 .cmp = st_l1miss_cmp, 1557 .entry = st_l1miss_entry, 1558 .width = 7, 1559}; 1560 1561static struct c2c_dimension dim_cl_stores_na = { 1562 .header = HEADER_SPAN_LOW("N/A"), 1563 .name = "cl_stores_na", 1564 .cmp = st_na_cmp, 1565 .entry = st_na_entry, 1566 .width = 7, 1567}; 1568 1569static struct c2c_dimension dim_ld_fbhit = { 1570 .header = HEADER_SPAN("----- Core Load Hit -----", "FB", 2), 1571 .name = "ld_fbhit", 1572 .cmp = ld_fbhit_cmp, 1573 .entry = ld_fbhit_entry, 1574 .width = 7, 1575}; 1576 1577static struct c2c_dimension dim_ld_l1hit = { 1578 .header = HEADER_SPAN_LOW("L1"), 1579 .name = "ld_l1hit", 1580 .cmp = ld_l1hit_cmp, 1581 .entry = ld_l1hit_entry, 1582 .width = 7, 1583}; 1584 1585static struct c2c_dimension dim_ld_l2hit = { 1586 .header = HEADER_SPAN_LOW("L2"), 1587 .name = "ld_l2hit", 1588 .cmp = ld_l2hit_cmp, 1589 .entry = ld_l2hit_entry, 1590 .width = 7, 1591}; 1592 1593static struct c2c_dimension dim_ld_llchit = { 1594 .header = HEADER_SPAN("- LLC Load Hit --", "LclHit", 1), 1595 .name = "ld_lclhit", 1596 .cmp = ld_llchit_cmp, 1597 .entry = ld_llchit_entry, 1598 .width = 8, 1599}; 1600 1601static struct c2c_dimension dim_ld_rmthit = { 1602 .header = HEADER_SPAN("- RMT Load Hit --", "RmtHit", 1), 1603 .name = "ld_rmthit", 1604 .cmp = rmt_hit_cmp, 1605 .entry = rmt_hit_entry, 1606 .width = 8, 1607}; 1608 1609static struct c2c_dimension dim_tot_recs = { 1610 .header = HEADER_BOTH("Total", "records"), 1611 .name = "tot_recs", 1612 .cmp = tot_recs_cmp, 1613 .entry = tot_recs_entry, 1614 .width = 7, 1615}; 1616 1617static struct c2c_dimension dim_tot_loads = { 1618 .header = HEADER_BOTH("Total", "Loads"), 1619 .name = "tot_loads", 1620 .cmp = tot_loads_cmp, 1621 .entry = tot_loads_entry, 1622 .width = 7, 1623}; 1624 1625static struct c2c_header percent_costly_snoop_header[] = { 1626 [DISPLAY_LCL_HITM] = HEADER_BOTH("Lcl", "Hitm"), 1627 [DISPLAY_RMT_HITM] = HEADER_BOTH("Rmt", "Hitm"), 1628 [DISPLAY_TOT_HITM] = HEADER_BOTH("Tot", "Hitm"), 1629 [DISPLAY_SNP_PEER] = HEADER_BOTH("Peer", "Snoop"), 1630}; 1631 1632static struct c2c_dimension dim_percent_costly_snoop = { 1633 .name = "percent_costly_snoop", 1634 .cmp = percent_costly_snoop_cmp, 1635 .entry = percent_costly_snoop_entry, 1636 .color = percent_costly_snoop_color, 1637 .width = 7, 1638}; 1639 1640static struct c2c_dimension dim_percent_rmt_hitm = { 1641 .header = HEADER_SPAN("----- HITM -----", "RmtHitm", 1), 1642 .name = "percent_rmt_hitm", 1643 .cmp = percent_rmt_hitm_cmp, 1644 .entry = percent_rmt_hitm_entry, 1645 .color = percent_rmt_hitm_color, 1646 .width = 7, 1647}; 1648 1649static struct c2c_dimension dim_percent_lcl_hitm = { 1650 .header = HEADER_SPAN_LOW("LclHitm"), 1651 .name = "percent_lcl_hitm", 1652 .cmp = percent_lcl_hitm_cmp, 1653 .entry = percent_lcl_hitm_entry, 1654 .color = percent_lcl_hitm_color, 1655 .width = 7, 1656}; 1657 1658static struct c2c_dimension dim_percent_rmt_peer = { 1659 .header = HEADER_SPAN("-- Peer Snoop --", "Rmt", 1), 1660 .name = "percent_rmt_peer", 1661 .cmp = percent_rmt_peer_cmp, 1662 .entry = percent_rmt_peer_entry, 1663 .color = percent_rmt_peer_color, 1664 .width = 7, 1665}; 1666 1667static struct c2c_dimension dim_percent_lcl_peer = { 1668 .header = HEADER_SPAN_LOW("Lcl"), 1669 .name = "percent_lcl_peer", 1670 .cmp = percent_lcl_peer_cmp, 1671 .entry = percent_lcl_peer_entry, 1672 .color = percent_lcl_peer_color, 1673 .width = 7, 1674}; 1675 1676static struct c2c_dimension dim_percent_stores_l1hit = { 1677 .header = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2), 1678 .name = "percent_stores_l1hit", 1679 .cmp = percent_stores_l1hit_cmp, 1680 .entry = percent_stores_l1hit_entry, 1681 .color = percent_stores_l1hit_color, 1682 .width = 7, 1683}; 1684 1685static struct c2c_dimension dim_percent_stores_l1miss = { 1686 .header = HEADER_SPAN_LOW("L1 Miss"), 1687 .name = "percent_stores_l1miss", 1688 .cmp = percent_stores_l1miss_cmp, 1689 .entry = percent_stores_l1miss_entry, 1690 .color = percent_stores_l1miss_color, 1691 .width = 7, 1692}; 1693 1694static struct c2c_dimension dim_percent_stores_na = { 1695 .header = HEADER_SPAN_LOW("N/A"), 1696 .name = "percent_stores_na", 1697 .cmp = percent_stores_na_cmp, 1698 .entry = percent_stores_na_entry, 1699 .color = percent_stores_na_color, 1700 .width = 7, 1701}; 1702 1703static struct c2c_dimension dim_dram_lcl = { 1704 .header = HEADER_SPAN("--- Load Dram ----", "Lcl", 1), 1705 .name = "dram_lcl", 1706 .cmp = lcl_dram_cmp, 1707 .entry = lcl_dram_entry, 1708 .width = 8, 1709}; 1710 1711static struct c2c_dimension dim_dram_rmt = { 1712 .header = HEADER_SPAN_LOW("Rmt"), 1713 .name = "dram_rmt", 1714 .cmp = rmt_dram_cmp, 1715 .entry = rmt_dram_entry, 1716 .width = 8, 1717}; 1718 1719static struct c2c_dimension dim_pid = { 1720 .header = HEADER_LOW("Pid"), 1721 .name = "pid", 1722 .cmp = pid_cmp, 1723 .entry = pid_entry, 1724 .width = 7, 1725}; 1726 1727static struct c2c_dimension dim_tid = { 1728 .header = HEADER_LOW("Tid"), 1729 .name = "tid", 1730 .se = &sort_thread, 1731}; 1732 1733static struct c2c_dimension dim_symbol = { 1734 .name = "symbol", 1735 .se = &sort_sym, 1736}; 1737 1738static struct c2c_dimension dim_dso = { 1739 .header = HEADER_BOTH("Shared", "Object"), 1740 .name = "dso", 1741 .se = &sort_dso, 1742}; 1743 1744static struct c2c_dimension dim_node = { 1745 .name = "node", 1746 .cmp = empty_cmp, 1747 .entry = node_entry, 1748 .width = 4, 1749}; 1750 1751static struct c2c_dimension dim_mean_rmt = { 1752 .header = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2), 1753 .name = "mean_rmt", 1754 .cmp = empty_cmp, 1755 .entry = mean_rmt_entry, 1756 .width = 8, 1757}; 1758 1759static struct c2c_dimension dim_mean_lcl = { 1760 .header = HEADER_SPAN_LOW("lcl hitm"), 1761 .name = "mean_lcl", 1762 .cmp = empty_cmp, 1763 .entry = mean_lcl_entry, 1764 .width = 8, 1765}; 1766 1767static struct c2c_dimension dim_mean_load = { 1768 .header = HEADER_SPAN_LOW("load"), 1769 .name = "mean_load", 1770 .cmp = empty_cmp, 1771 .entry = mean_load_entry, 1772 .width = 8, 1773}; 1774 1775static struct c2c_dimension dim_mean_rmt_peer = { 1776 .header = HEADER_SPAN("---------- cycles ----------", "rmt peer", 2), 1777 .name = "mean_rmt_peer", 1778 .cmp = empty_cmp, 1779 .entry = mean_rmt_peer_entry, 1780 .width = 8, 1781}; 1782 1783static struct c2c_dimension dim_mean_lcl_peer = { 1784 .header = HEADER_SPAN_LOW("lcl peer"), 1785 .name = "mean_lcl_peer", 1786 .cmp = empty_cmp, 1787 .entry = mean_lcl_peer_entry, 1788 .width = 8, 1789}; 1790 1791static struct c2c_dimension dim_cpucnt = { 1792 .header = HEADER_BOTH("cpu", "cnt"), 1793 .name = "cpucnt", 1794 .cmp = empty_cmp, 1795 .entry = cpucnt_entry, 1796 .width = 8, 1797}; 1798 1799static struct c2c_dimension dim_srcline = { 1800 .name = "cl_srcline", 1801 .se = &sort_srcline, 1802}; 1803 1804static struct c2c_dimension dim_dcacheline_idx = { 1805 .header = HEADER_LOW("Index"), 1806 .name = "cl_idx", 1807 .cmp = empty_cmp, 1808 .entry = cl_idx_entry, 1809 .width = 5, 1810}; 1811 1812static struct c2c_dimension dim_dcacheline_num = { 1813 .header = HEADER_LOW("Num"), 1814 .name = "cl_num", 1815 .cmp = empty_cmp, 1816 .entry = cl_idx_entry, 1817 .width = 5, 1818}; 1819 1820static struct c2c_dimension dim_dcacheline_num_empty = { 1821 .header = HEADER_LOW("Num"), 1822 .name = "cl_num_empty", 1823 .cmp = empty_cmp, 1824 .entry = cl_idx_empty_entry, 1825 .width = 5, 1826}; 1827 1828static struct c2c_dimension *dimensions[] = { 1829 &dim_dcacheline, 1830 &dim_dcacheline_node, 1831 &dim_dcacheline_count, 1832 &dim_offset, 1833 &dim_offset_node, 1834 &dim_iaddr, 1835 &dim_tot_hitm, 1836 &dim_lcl_hitm, 1837 &dim_rmt_hitm, 1838 &dim_tot_peer, 1839 &dim_lcl_peer, 1840 &dim_rmt_peer, 1841 &dim_cl_lcl_hitm, 1842 &dim_cl_rmt_hitm, 1843 &dim_cl_lcl_peer, 1844 &dim_cl_rmt_peer, 1845 &dim_tot_stores, 1846 &dim_stores_l1hit, 1847 &dim_stores_l1miss, 1848 &dim_stores_na, 1849 &dim_cl_stores_l1hit, 1850 &dim_cl_stores_l1miss, 1851 &dim_cl_stores_na, 1852 &dim_ld_fbhit, 1853 &dim_ld_l1hit, 1854 &dim_ld_l2hit, 1855 &dim_ld_llchit, 1856 &dim_ld_rmthit, 1857 &dim_tot_recs, 1858 &dim_tot_loads, 1859 &dim_percent_costly_snoop, 1860 &dim_percent_rmt_hitm, 1861 &dim_percent_lcl_hitm, 1862 &dim_percent_rmt_peer, 1863 &dim_percent_lcl_peer, 1864 &dim_percent_stores_l1hit, 1865 &dim_percent_stores_l1miss, 1866 &dim_percent_stores_na, 1867 &dim_dram_lcl, 1868 &dim_dram_rmt, 1869 &dim_pid, 1870 &dim_tid, 1871 &dim_symbol, 1872 &dim_dso, 1873 &dim_node, 1874 &dim_mean_rmt, 1875 &dim_mean_lcl, 1876 &dim_mean_rmt_peer, 1877 &dim_mean_lcl_peer, 1878 &dim_mean_load, 1879 &dim_cpucnt, 1880 &dim_srcline, 1881 &dim_dcacheline_idx, 1882 &dim_dcacheline_num, 1883 &dim_dcacheline_num_empty, 1884 NULL, 1885}; 1886 1887static void fmt_free(struct perf_hpp_fmt *fmt) 1888{ 1889 struct c2c_fmt *c2c_fmt; 1890 1891 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 1892 free(c2c_fmt); 1893} 1894 1895static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b) 1896{ 1897 struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt); 1898 struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt); 1899 1900 return c2c_a->dim == c2c_b->dim; 1901} 1902 1903static struct c2c_dimension *get_dimension(const char *name) 1904{ 1905 unsigned int i; 1906 1907 for (i = 0; dimensions[i]; i++) { 1908 struct c2c_dimension *dim = dimensions[i]; 1909 1910 if (!strcmp(dim->name, name)) 1911 return dim; 1912 } 1913 1914 return NULL; 1915} 1916 1917static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, 1918 struct hist_entry *he) 1919{ 1920 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 1921 struct c2c_dimension *dim = c2c_fmt->dim; 1922 size_t len = fmt->user_len; 1923 1924 if (!len) { 1925 len = hists__col_len(he->hists, dim->se->se_width_idx); 1926 1927 if (dim == &dim_symbol || dim == &dim_srcline) 1928 len = symbol_width(he->hists, dim->se); 1929 } 1930 1931 return dim->se->se_snprintf(he, hpp->buf, hpp->size, len); 1932} 1933 1934static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt, 1935 struct hist_entry *a, struct hist_entry *b) 1936{ 1937 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 1938 struct c2c_dimension *dim = c2c_fmt->dim; 1939 1940 return dim->se->se_cmp(a, b); 1941} 1942 1943static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt, 1944 struct hist_entry *a, struct hist_entry *b) 1945{ 1946 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt); 1947 struct c2c_dimension *dim = c2c_fmt->dim; 1948 int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *); 1949 1950 collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp; 1951 return collapse_fn(a, b); 1952} 1953 1954static struct c2c_fmt *get_format(const char *name) 1955{ 1956 struct c2c_dimension *dim = get_dimension(name); 1957 struct c2c_fmt *c2c_fmt; 1958 struct perf_hpp_fmt *fmt; 1959 1960 if (!dim) 1961 return NULL; 1962 1963 c2c_fmt = zalloc(sizeof(*c2c_fmt)); 1964 if (!c2c_fmt) 1965 return NULL; 1966 1967 c2c_fmt->dim = dim; 1968 1969 fmt = &c2c_fmt->fmt; 1970 INIT_LIST_HEAD(&fmt->list); 1971 INIT_LIST_HEAD(&fmt->sort_list); 1972 1973 fmt->cmp = dim->se ? c2c_se_cmp : dim->cmp; 1974 fmt->sort = dim->se ? c2c_se_cmp : dim->cmp; 1975 fmt->color = dim->se ? NULL : dim->color; 1976 fmt->entry = dim->se ? c2c_se_entry : dim->entry; 1977 fmt->header = c2c_header; 1978 fmt->width = c2c_width; 1979 fmt->collapse = dim->se ? c2c_se_collapse : dim->cmp; 1980 fmt->equal = fmt_equal; 1981 fmt->free = fmt_free; 1982 1983 return c2c_fmt; 1984} 1985 1986static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name) 1987{ 1988 struct c2c_fmt *c2c_fmt = get_format(name); 1989 1990 if (!c2c_fmt) { 1991 reset_dimensions(); 1992 return output_field_add(hpp_list, name); 1993 } 1994 1995 perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt); 1996 return 0; 1997} 1998 1999static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name) 2000{ 2001 struct c2c_fmt *c2c_fmt = get_format(name); 2002 struct c2c_dimension *dim; 2003 2004 if (!c2c_fmt) { 2005 reset_dimensions(); 2006 return sort_dimension__add(hpp_list, name, NULL, 0); 2007 } 2008 2009 dim = c2c_fmt->dim; 2010 if (dim == &dim_dso) 2011 hpp_list->dso = 1; 2012 2013 perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt); 2014 return 0; 2015} 2016 2017#define PARSE_LIST(_list, _fn) \ 2018 do { \ 2019 char *tmp, *tok; \ 2020 ret = 0; \ 2021 \ 2022 if (!_list) \ 2023 break; \ 2024 \ 2025 for (tok = strtok_r((char *)_list, ", ", &tmp); \ 2026 tok; tok = strtok_r(NULL, ", ", &tmp)) { \ 2027 ret = _fn(hpp_list, tok); \ 2028 if (ret == -EINVAL) { \ 2029 pr_err("Invalid --fields key: `%s'", tok); \ 2030 break; \ 2031 } else if (ret == -ESRCH) { \ 2032 pr_err("Unknown --fields key: `%s'", tok); \ 2033 break; \ 2034 } \ 2035 } \ 2036 } while (0) 2037 2038static int hpp_list__parse(struct perf_hpp_list *hpp_list, 2039 const char *output_, 2040 const char *sort_) 2041{ 2042 char *output = output_ ? strdup(output_) : NULL; 2043 char *sort = sort_ ? strdup(sort_) : NULL; 2044 int ret; 2045 2046 PARSE_LIST(output, c2c_hists__init_output); 2047 PARSE_LIST(sort, c2c_hists__init_sort); 2048 2049 /* copy sort keys to output fields */ 2050 perf_hpp__setup_output_field(hpp_list); 2051 2052 /* 2053 * We dont need other sorting keys other than those 2054 * we already specified. It also really slows down 2055 * the processing a lot with big number of output 2056 * fields, so switching this off for c2c. 2057 */ 2058 2059#if 0 2060 /* and then copy output fields to sort keys */ 2061 perf_hpp__append_sort_keys(&hists->list); 2062#endif 2063 2064 free(output); 2065 free(sort); 2066 return ret; 2067} 2068 2069static int c2c_hists__init(struct c2c_hists *hists, 2070 const char *sort, 2071 int nr_header_lines) 2072{ 2073 __hists__init(&hists->hists, &hists->list); 2074 2075 /* 2076 * Initialize only with sort fields, we need to resort 2077 * later anyway, and that's where we add output fields 2078 * as well. 2079 */ 2080 perf_hpp_list__init(&hists->list); 2081 2082 /* Overload number of header lines.*/ 2083 hists->list.nr_header_lines = nr_header_lines; 2084 2085 return hpp_list__parse(&hists->list, NULL, sort); 2086} 2087 2088static int c2c_hists__reinit(struct c2c_hists *c2c_hists, 2089 const char *output, 2090 const char *sort) 2091{ 2092 perf_hpp__reset_output_field(&c2c_hists->list); 2093 return hpp_list__parse(&c2c_hists->list, output, sort); 2094} 2095 2096#define DISPLAY_LINE_LIMIT 0.001 2097 2098static u8 filter_display(u32 val, u32 sum) 2099{ 2100 if (sum == 0 || ((double)val / sum) < DISPLAY_LINE_LIMIT) 2101 return HIST_FILTER__C2C; 2102 2103 return 0; 2104} 2105 2106static bool he__display(struct hist_entry *he, struct c2c_stats *stats) 2107{ 2108 struct c2c_hist_entry *c2c_he; 2109 2110 if (c2c.show_all) 2111 return true; 2112 2113 c2c_he = container_of(he, struct c2c_hist_entry, he); 2114 2115 switch (c2c.display) { 2116 case DISPLAY_LCL_HITM: 2117 he->filtered = filter_display(c2c_he->stats.lcl_hitm, 2118 stats->lcl_hitm); 2119 break; 2120 case DISPLAY_RMT_HITM: 2121 he->filtered = filter_display(c2c_he->stats.rmt_hitm, 2122 stats->rmt_hitm); 2123 break; 2124 case DISPLAY_TOT_HITM: 2125 he->filtered = filter_display(c2c_he->stats.tot_hitm, 2126 stats->tot_hitm); 2127 break; 2128 case DISPLAY_SNP_PEER: 2129 he->filtered = filter_display(c2c_he->stats.tot_peer, 2130 stats->tot_peer); 2131 break; 2132 default: 2133 break; 2134 } 2135 2136 return he->filtered == 0; 2137} 2138 2139static inline bool is_valid_hist_entry(struct hist_entry *he) 2140{ 2141 struct c2c_hist_entry *c2c_he; 2142 bool has_record = false; 2143 2144 c2c_he = container_of(he, struct c2c_hist_entry, he); 2145 2146 /* It's a valid entry if contains stores */ 2147 if (c2c_he->stats.store) 2148 return true; 2149 2150 switch (c2c.display) { 2151 case DISPLAY_LCL_HITM: 2152 has_record = !!c2c_he->stats.lcl_hitm; 2153 break; 2154 case DISPLAY_RMT_HITM: 2155 has_record = !!c2c_he->stats.rmt_hitm; 2156 break; 2157 case DISPLAY_TOT_HITM: 2158 has_record = !!c2c_he->stats.tot_hitm; 2159 break; 2160 case DISPLAY_SNP_PEER: 2161 has_record = !!c2c_he->stats.tot_peer; 2162 default: 2163 break; 2164 } 2165 2166 return has_record; 2167} 2168 2169static void set_node_width(struct c2c_hist_entry *c2c_he, int len) 2170{ 2171 struct c2c_dimension *dim; 2172 2173 dim = &c2c.hists == c2c_he->hists ? 2174 &dim_dcacheline_node : &dim_offset_node; 2175 2176 if (len > dim->width) 2177 dim->width = len; 2178} 2179 2180static int set_nodestr(struct c2c_hist_entry *c2c_he) 2181{ 2182 char buf[30]; 2183 int len; 2184 2185 if (c2c_he->nodestr) 2186 return 0; 2187 2188 if (!bitmap_empty(c2c_he->nodeset, c2c.nodes_cnt)) { 2189 len = bitmap_scnprintf(c2c_he->nodeset, c2c.nodes_cnt, 2190 buf, sizeof(buf)); 2191 } else { 2192 len = scnprintf(buf, sizeof(buf), "N/A"); 2193 } 2194 2195 set_node_width(c2c_he, len); 2196 c2c_he->nodestr = strdup(buf); 2197 return c2c_he->nodestr ? 0 : -ENOMEM; 2198} 2199 2200static void calc_width(struct c2c_hist_entry *c2c_he) 2201{ 2202 struct c2c_hists *c2c_hists; 2203 2204 c2c_hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); 2205 hists__calc_col_len(&c2c_hists->hists, &c2c_he->he); 2206 set_nodestr(c2c_he); 2207} 2208 2209static int filter_cb(struct hist_entry *he, void *arg __maybe_unused) 2210{ 2211 struct c2c_hist_entry *c2c_he; 2212 2213 c2c_he = container_of(he, struct c2c_hist_entry, he); 2214 2215 if (c2c.show_src && !he->srcline) 2216 he->srcline = hist_entry__srcline(he); 2217 2218 calc_width(c2c_he); 2219 2220 if (!is_valid_hist_entry(he)) 2221 he->filtered = HIST_FILTER__C2C; 2222 2223 return 0; 2224} 2225 2226static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused) 2227{ 2228 struct c2c_hist_entry *c2c_he; 2229 struct c2c_hists *c2c_hists; 2230 bool display = he__display(he, &c2c.shared_clines_stats); 2231 2232 c2c_he = container_of(he, struct c2c_hist_entry, he); 2233 c2c_hists = c2c_he->hists; 2234 2235 if (display && c2c_hists) { 2236 static unsigned int idx; 2237 2238 c2c_he->cacheline_idx = idx++; 2239 calc_width(c2c_he); 2240 2241 c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort); 2242 2243 hists__collapse_resort(&c2c_hists->hists, NULL); 2244 hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb); 2245 } 2246 2247 return 0; 2248} 2249 2250static struct c2c_header header_node_0 = HEADER_LOW("Node"); 2251static struct c2c_header header_node_1_hitms_stores = 2252 HEADER_LOW("Node{cpus %hitms %stores}"); 2253static struct c2c_header header_node_1_peers_stores = 2254 HEADER_LOW("Node{cpus %peers %stores}"); 2255static struct c2c_header header_node_2 = HEADER_LOW("Node{cpu list}"); 2256 2257static void setup_nodes_header(void) 2258{ 2259 switch (c2c.node_info) { 2260 case 0: 2261 dim_node.header = header_node_0; 2262 break; 2263 case 1: 2264 if (c2c.display == DISPLAY_SNP_PEER) 2265 dim_node.header = header_node_1_peers_stores; 2266 else 2267 dim_node.header = header_node_1_hitms_stores; 2268 break; 2269 case 2: 2270 dim_node.header = header_node_2; 2271 break; 2272 default: 2273 break; 2274 } 2275 2276 return; 2277} 2278 2279static int setup_nodes(struct perf_session *session) 2280{ 2281 struct numa_node *n; 2282 unsigned long **nodes; 2283 int node, idx; 2284 struct perf_cpu cpu; 2285 int *cpu2node; 2286 2287 if (c2c.node_info > 2) 2288 c2c.node_info = 2; 2289 2290 c2c.nodes_cnt = session->header.env.nr_numa_nodes; 2291 c2c.cpus_cnt = session->header.env.nr_cpus_avail; 2292 2293 n = session->header.env.numa_nodes; 2294 if (!n) 2295 return -EINVAL; 2296 2297 nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt); 2298 if (!nodes) 2299 return -ENOMEM; 2300 2301 c2c.nodes = nodes; 2302 2303 cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt); 2304 if (!cpu2node) 2305 return -ENOMEM; 2306 2307 for (idx = 0; idx < c2c.cpus_cnt; idx++) 2308 cpu2node[idx] = -1; 2309 2310 c2c.cpu2node = cpu2node; 2311 2312 for (node = 0; node < c2c.nodes_cnt; node++) { 2313 struct perf_cpu_map *map = n[node].map; 2314 unsigned long *set; 2315 2316 set = bitmap_zalloc(c2c.cpus_cnt); 2317 if (!set) 2318 return -ENOMEM; 2319 2320 nodes[node] = set; 2321 2322 /* empty node, skip */ 2323 if (perf_cpu_map__has_any_cpu_or_is_empty(map)) 2324 continue; 2325 2326 perf_cpu_map__for_each_cpu(cpu, idx, map) { 2327 __set_bit(cpu.cpu, set); 2328 2329 if (WARN_ONCE(cpu2node[cpu.cpu] != -1, "node/cpu topology bug")) 2330 return -EINVAL; 2331 2332 cpu2node[cpu.cpu] = node; 2333 } 2334 } 2335 2336 setup_nodes_header(); 2337 return 0; 2338} 2339 2340#define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm) 2341#define HAS_PEER(__h) ((__h)->stats.lcl_peer || (__h)->stats.rmt_peer) 2342 2343static int resort_shared_cl_cb(struct hist_entry *he, void *arg __maybe_unused) 2344{ 2345 struct c2c_hist_entry *c2c_he; 2346 c2c_he = container_of(he, struct c2c_hist_entry, he); 2347 2348 if (HAS_HITMS(c2c_he) || HAS_PEER(c2c_he)) { 2349 c2c.shared_clines++; 2350 c2c_add_stats(&c2c.shared_clines_stats, &c2c_he->stats); 2351 } 2352 2353 return 0; 2354} 2355 2356static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb) 2357{ 2358 struct rb_node *next = rb_first_cached(&hists->entries); 2359 int ret = 0; 2360 2361 while (next) { 2362 struct hist_entry *he; 2363 2364 he = rb_entry(next, struct hist_entry, rb_node); 2365 ret = cb(he, NULL); 2366 if (ret) 2367 break; 2368 next = rb_next(&he->rb_node); 2369 } 2370 2371 return ret; 2372} 2373 2374static void print_c2c__display_stats(FILE *out) 2375{ 2376 int llc_misses; 2377 struct c2c_stats *stats = &c2c.hists.stats; 2378 2379 llc_misses = get_load_llc_misses(stats); 2380 2381 fprintf(out, "=================================================\n"); 2382 fprintf(out, " Trace Event Information \n"); 2383 fprintf(out, "=================================================\n"); 2384 fprintf(out, " Total records : %10d\n", stats->nr_entries); 2385 fprintf(out, " Locked Load/Store Operations : %10d\n", stats->locks); 2386 fprintf(out, " Load Operations : %10d\n", stats->load); 2387 fprintf(out, " Loads - uncacheable : %10d\n", stats->ld_uncache); 2388 fprintf(out, " Loads - IO : %10d\n", stats->ld_io); 2389 fprintf(out, " Loads - Miss : %10d\n", stats->ld_miss); 2390 fprintf(out, " Loads - no mapping : %10d\n", stats->ld_noadrs); 2391 fprintf(out, " Load Fill Buffer Hit : %10d\n", stats->ld_fbhit); 2392 fprintf(out, " Load L1D hit : %10d\n", stats->ld_l1hit); 2393 fprintf(out, " Load L2D hit : %10d\n", stats->ld_l2hit); 2394 fprintf(out, " Load LLC hit : %10d\n", stats->ld_llchit + stats->lcl_hitm); 2395 fprintf(out, " Load Local HITM : %10d\n", stats->lcl_hitm); 2396 fprintf(out, " Load Remote HITM : %10d\n", stats->rmt_hitm); 2397 fprintf(out, " Load Remote HIT : %10d\n", stats->rmt_hit); 2398 fprintf(out, " Load Local DRAM : %10d\n", stats->lcl_dram); 2399 fprintf(out, " Load Remote DRAM : %10d\n", stats->rmt_dram); 2400 fprintf(out, " Load MESI State Exclusive : %10d\n", stats->ld_excl); 2401 fprintf(out, " Load MESI State Shared : %10d\n", stats->ld_shared); 2402 fprintf(out, " Load LLC Misses : %10d\n", llc_misses); 2403 fprintf(out, " Load access blocked by data : %10d\n", stats->blk_data); 2404 fprintf(out, " Load access blocked by address : %10d\n", stats->blk_addr); 2405 fprintf(out, " Load HIT Local Peer : %10d\n", stats->lcl_peer); 2406 fprintf(out, " Load HIT Remote Peer : %10d\n", stats->rmt_peer); 2407 fprintf(out, " LLC Misses to Local DRAM : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.); 2408 fprintf(out, " LLC Misses to Remote DRAM : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.); 2409 fprintf(out, " LLC Misses to Remote cache (HIT) : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.); 2410 fprintf(out, " LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.); 2411 fprintf(out, " Store Operations : %10d\n", stats->store); 2412 fprintf(out, " Store - uncacheable : %10d\n", stats->st_uncache); 2413 fprintf(out, " Store - no mapping : %10d\n", stats->st_noadrs); 2414 fprintf(out, " Store L1D Hit : %10d\n", stats->st_l1hit); 2415 fprintf(out, " Store L1D Miss : %10d\n", stats->st_l1miss); 2416 fprintf(out, " Store No available memory level : %10d\n", stats->st_na); 2417 fprintf(out, " No Page Map Rejects : %10d\n", stats->nomap); 2418 fprintf(out, " Unable to parse data source : %10d\n", stats->noparse); 2419} 2420 2421static void print_shared_cacheline_info(FILE *out) 2422{ 2423 struct c2c_stats *stats = &c2c.shared_clines_stats; 2424 int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm; 2425 2426 fprintf(out, "=================================================\n"); 2427 fprintf(out, " Global Shared Cache Line Event Information \n"); 2428 fprintf(out, "=================================================\n"); 2429 fprintf(out, " Total Shared Cache Lines : %10d\n", c2c.shared_clines); 2430 fprintf(out, " Load HITs on shared lines : %10d\n", stats->load); 2431 fprintf(out, " Fill Buffer Hits on shared lines : %10d\n", stats->ld_fbhit); 2432 fprintf(out, " L1D hits on shared lines : %10d\n", stats->ld_l1hit); 2433 fprintf(out, " L2D hits on shared lines : %10d\n", stats->ld_l2hit); 2434 fprintf(out, " LLC hits on shared lines : %10d\n", stats->ld_llchit + stats->lcl_hitm); 2435 fprintf(out, " Load hits on peer cache or nodes : %10d\n", stats->lcl_peer + stats->rmt_peer); 2436 fprintf(out, " Locked Access on shared lines : %10d\n", stats->locks); 2437 fprintf(out, " Blocked Access on shared lines : %10d\n", stats->blk_data + stats->blk_addr); 2438 fprintf(out, " Store HITs on shared lines : %10d\n", stats->store); 2439 fprintf(out, " Store L1D hits on shared lines : %10d\n", stats->st_l1hit); 2440 fprintf(out, " Store No available memory level : %10d\n", stats->st_na); 2441 fprintf(out, " Total Merged records : %10d\n", hitm_cnt + stats->store); 2442} 2443 2444static void print_cacheline(struct c2c_hists *c2c_hists, 2445 struct hist_entry *he_cl, 2446 struct perf_hpp_list *hpp_list, 2447 FILE *out) 2448{ 2449 char bf[1000]; 2450 struct perf_hpp hpp = { 2451 .buf = bf, 2452 .size = 1000, 2453 }; 2454 static bool once; 2455 2456 if (!once) { 2457 hists__fprintf_headers(&c2c_hists->hists, out); 2458 once = true; 2459 } else { 2460 fprintf(out, "\n"); 2461 } 2462 2463 fprintf(out, " ----------------------------------------------------------------------\n"); 2464 __hist_entry__snprintf(he_cl, &hpp, hpp_list); 2465 fprintf(out, "%s\n", bf); 2466 fprintf(out, " ----------------------------------------------------------------------\n"); 2467 2468 hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false); 2469} 2470 2471static void print_pareto(FILE *out) 2472{ 2473 struct perf_hpp_list hpp_list; 2474 struct rb_node *nd; 2475 int ret; 2476 const char *cl_output; 2477 2478 if (c2c.display != DISPLAY_SNP_PEER) 2479 cl_output = "cl_num," 2480 "cl_rmt_hitm," 2481 "cl_lcl_hitm," 2482 "cl_stores_l1hit," 2483 "cl_stores_l1miss," 2484 "cl_stores_na," 2485 "dcacheline"; 2486 else 2487 cl_output = "cl_num," 2488 "cl_rmt_peer," 2489 "cl_lcl_peer," 2490 "cl_stores_l1hit," 2491 "cl_stores_l1miss," 2492 "cl_stores_na," 2493 "dcacheline"; 2494 2495 perf_hpp_list__init(&hpp_list); 2496 ret = hpp_list__parse(&hpp_list, cl_output, NULL); 2497 2498 if (WARN_ONCE(ret, "failed to setup sort entries\n")) 2499 return; 2500 2501 nd = rb_first_cached(&c2c.hists.hists.entries); 2502 2503 for (; nd; nd = rb_next(nd)) { 2504 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); 2505 struct c2c_hist_entry *c2c_he; 2506 2507 if (he->filtered) 2508 continue; 2509 2510 c2c_he = container_of(he, struct c2c_hist_entry, he); 2511 print_cacheline(c2c_he->hists, he, &hpp_list, out); 2512 } 2513} 2514 2515static void print_c2c_info(FILE *out, struct perf_session *session) 2516{ 2517 struct evlist *evlist = session->evlist; 2518 struct evsel *evsel; 2519 bool first = true; 2520 2521 fprintf(out, "=================================================\n"); 2522 fprintf(out, " c2c details \n"); 2523 fprintf(out, "=================================================\n"); 2524 2525 evlist__for_each_entry(evlist, evsel) { 2526 fprintf(out, "%-36s: %s\n", first ? " Events" : "", evsel__name(evsel)); 2527 first = false; 2528 } 2529 fprintf(out, " Cachelines sort on : %s\n", 2530 display_str[c2c.display]); 2531 fprintf(out, " Cacheline data grouping : %s\n", c2c.cl_sort); 2532} 2533 2534static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session) 2535{ 2536 setup_pager(); 2537 2538 print_c2c__display_stats(out); 2539 fprintf(out, "\n"); 2540 print_shared_cacheline_info(out); 2541 fprintf(out, "\n"); 2542 print_c2c_info(out, session); 2543 2544 if (c2c.stats_only) 2545 return; 2546 2547 fprintf(out, "\n"); 2548 fprintf(out, "=================================================\n"); 2549 fprintf(out, " Shared Data Cache Line Table \n"); 2550 fprintf(out, "=================================================\n"); 2551 fprintf(out, "#\n"); 2552 2553 hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, true); 2554 2555 fprintf(out, "\n"); 2556 fprintf(out, "=================================================\n"); 2557 fprintf(out, " Shared Cache Line Distribution Pareto \n"); 2558 fprintf(out, "=================================================\n"); 2559 fprintf(out, "#\n"); 2560 2561 print_pareto(out); 2562} 2563 2564#ifdef HAVE_SLANG_SUPPORT 2565static void c2c_browser__update_nr_entries(struct hist_browser *hb) 2566{ 2567 u64 nr_entries = 0; 2568 struct rb_node *nd = rb_first_cached(&hb->hists->entries); 2569 2570 while (nd) { 2571 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); 2572 2573 if (!he->filtered) 2574 nr_entries++; 2575 2576 nd = rb_next(nd); 2577 } 2578 2579 hb->nr_non_filtered_entries = nr_entries; 2580} 2581 2582struct c2c_cacheline_browser { 2583 struct hist_browser hb; 2584 struct hist_entry *he; 2585}; 2586 2587static int 2588perf_c2c_cacheline_browser__title(struct hist_browser *browser, 2589 char *bf, size_t size) 2590{ 2591 struct c2c_cacheline_browser *cl_browser; 2592 struct hist_entry *he; 2593 uint64_t addr = 0; 2594 2595 cl_browser = container_of(browser, struct c2c_cacheline_browser, hb); 2596 he = cl_browser->he; 2597 2598 if (he->mem_info) 2599 addr = cl_address(he->mem_info->daddr.addr, chk_double_cl); 2600 2601 scnprintf(bf, size, "Cacheline 0x%lx", addr); 2602 return 0; 2603} 2604 2605static struct c2c_cacheline_browser* 2606c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he) 2607{ 2608 struct c2c_cacheline_browser *browser; 2609 2610 browser = zalloc(sizeof(*browser)); 2611 if (browser) { 2612 hist_browser__init(&browser->hb, hists); 2613 browser->hb.c2c_filter = true; 2614 browser->hb.title = perf_c2c_cacheline_browser__title; 2615 browser->he = he; 2616 } 2617 2618 return browser; 2619} 2620 2621static int perf_c2c__browse_cacheline(struct hist_entry *he) 2622{ 2623 struct c2c_hist_entry *c2c_he; 2624 struct c2c_hists *c2c_hists; 2625 struct c2c_cacheline_browser *cl_browser; 2626 struct hist_browser *browser; 2627 int key = -1; 2628 static const char help[] = 2629 " ENTER Toggle callchains (if present) \n" 2630 " n Toggle Node details info \n" 2631 " s Toggle full length of symbol and source line columns \n" 2632 " q Return back to cacheline list \n"; 2633 2634 if (!he) 2635 return 0; 2636 2637 /* Display compact version first. */ 2638 c2c.symbol_full = false; 2639 2640 c2c_he = container_of(he, struct c2c_hist_entry, he); 2641 c2c_hists = c2c_he->hists; 2642 2643 cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he); 2644 if (cl_browser == NULL) 2645 return -1; 2646 2647 browser = &cl_browser->hb; 2648 2649 /* reset abort key so that it can get Ctrl-C as a key */ 2650 SLang_reset_tty(); 2651 SLang_init_tty(0, 0, 0); 2652 2653 c2c_browser__update_nr_entries(browser); 2654 2655 while (1) { 2656 key = hist_browser__run(browser, "? - help", true, 0); 2657 2658 switch (key) { 2659 case 's': 2660 c2c.symbol_full = !c2c.symbol_full; 2661 break; 2662 case 'n': 2663 c2c.node_info = (c2c.node_info + 1) % 3; 2664 setup_nodes_header(); 2665 break; 2666 case 'q': 2667 goto out; 2668 case '?': 2669 ui_browser__help_window(&browser->b, help); 2670 break; 2671 default: 2672 break; 2673 } 2674 } 2675 2676out: 2677 free(cl_browser); 2678 return 0; 2679} 2680 2681static int perf_c2c_browser__title(struct hist_browser *browser, 2682 char *bf, size_t size) 2683{ 2684 scnprintf(bf, size, 2685 "Shared Data Cache Line Table " 2686 "(%lu entries, sorted on %s)", 2687 browser->nr_non_filtered_entries, 2688 display_str[c2c.display]); 2689 return 0; 2690} 2691 2692static struct hist_browser* 2693perf_c2c_browser__new(struct hists *hists) 2694{ 2695 struct hist_browser *browser = hist_browser__new(hists); 2696 2697 if (browser) { 2698 browser->title = perf_c2c_browser__title; 2699 browser->c2c_filter = true; 2700 } 2701 2702 return browser; 2703} 2704 2705static int perf_c2c__hists_browse(struct hists *hists) 2706{ 2707 struct hist_browser *browser; 2708 int key = -1; 2709 static const char help[] = 2710 " d Display cacheline details \n" 2711 " ENTER Toggle callchains (if present) \n" 2712 " q Quit \n"; 2713 2714 browser = perf_c2c_browser__new(hists); 2715 if (browser == NULL) 2716 return -1; 2717 2718 /* reset abort key so that it can get Ctrl-C as a key */ 2719 SLang_reset_tty(); 2720 SLang_init_tty(0, 0, 0); 2721 2722 c2c_browser__update_nr_entries(browser); 2723 2724 while (1) { 2725 key = hist_browser__run(browser, "? - help", true, 0); 2726 2727 switch (key) { 2728 case 'q': 2729 goto out; 2730 case 'd': 2731 perf_c2c__browse_cacheline(browser->he_selection); 2732 break; 2733 case '?': 2734 ui_browser__help_window(&browser->b, help); 2735 break; 2736 default: 2737 break; 2738 } 2739 } 2740 2741out: 2742 hist_browser__delete(browser); 2743 return 0; 2744} 2745 2746static void perf_c2c_display(struct perf_session *session) 2747{ 2748 if (use_browser == 0) 2749 perf_c2c__hists_fprintf(stdout, session); 2750 else 2751 perf_c2c__hists_browse(&c2c.hists.hists); 2752} 2753#else 2754static void perf_c2c_display(struct perf_session *session) 2755{ 2756 use_browser = 0; 2757 perf_c2c__hists_fprintf(stdout, session); 2758} 2759#endif /* HAVE_SLANG_SUPPORT */ 2760 2761static char *fill_line(const char *orig, int len) 2762{ 2763 int i, j, olen = strlen(orig); 2764 char *buf; 2765 2766 buf = zalloc(len + 1); 2767 if (!buf) 2768 return NULL; 2769 2770 j = len / 2 - olen / 2; 2771 2772 for (i = 0; i < j - 1; i++) 2773 buf[i] = '-'; 2774 2775 buf[i++] = ' '; 2776 2777 strcpy(buf + i, orig); 2778 2779 i += olen; 2780 2781 buf[i++] = ' '; 2782 2783 for (; i < len; i++) 2784 buf[i] = '-'; 2785 2786 return buf; 2787} 2788 2789static int ui_quirks(void) 2790{ 2791 const char *nodestr = "Data address"; 2792 char *buf; 2793 2794 if (!c2c.use_stdio) { 2795 dim_offset.width = 5; 2796 dim_offset.header = header_offset_tui; 2797 nodestr = chk_double_cl ? "Double-CL" : "CL"; 2798 } 2799 2800 dim_percent_costly_snoop.header = percent_costly_snoop_header[c2c.display]; 2801 2802 /* Fix the zero line for dcacheline column. */ 2803 buf = fill_line(chk_double_cl ? "Double-Cacheline" : "Cacheline", 2804 dim_dcacheline.width + 2805 dim_dcacheline_node.width + 2806 dim_dcacheline_count.width + 4); 2807 if (!buf) 2808 return -ENOMEM; 2809 2810 dim_dcacheline.header.line[0].text = buf; 2811 2812 /* Fix the zero line for offset column. */ 2813 buf = fill_line(nodestr, dim_offset.width + 2814 dim_offset_node.width + 2815 dim_dcacheline_count.width + 4); 2816 if (!buf) 2817 return -ENOMEM; 2818 2819 dim_offset.header.line[0].text = buf; 2820 2821 return 0; 2822} 2823 2824#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" 2825 2826const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" 2827 CALLCHAIN_REPORT_HELP 2828 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT; 2829 2830static int 2831parse_callchain_opt(const struct option *opt, const char *arg, int unset) 2832{ 2833 struct callchain_param *callchain = opt->value; 2834 2835 callchain->enabled = !unset; 2836 /* 2837 * --no-call-graph 2838 */ 2839 if (unset) { 2840 symbol_conf.use_callchain = false; 2841 callchain->mode = CHAIN_NONE; 2842 return 0; 2843 } 2844 2845 return parse_callchain_report_opt(arg); 2846} 2847 2848static int setup_callchain(struct evlist *evlist) 2849{ 2850 u64 sample_type = evlist__combined_sample_type(evlist); 2851 enum perf_call_graph_mode mode = CALLCHAIN_NONE; 2852 2853 if ((sample_type & PERF_SAMPLE_REGS_USER) && 2854 (sample_type & PERF_SAMPLE_STACK_USER)) { 2855 mode = CALLCHAIN_DWARF; 2856 dwarf_callchain_users = true; 2857 } else if (sample_type & PERF_SAMPLE_BRANCH_STACK) 2858 mode = CALLCHAIN_LBR; 2859 else if (sample_type & PERF_SAMPLE_CALLCHAIN) 2860 mode = CALLCHAIN_FP; 2861 2862 if (!callchain_param.enabled && 2863 callchain_param.mode != CHAIN_NONE && 2864 mode != CALLCHAIN_NONE) { 2865 symbol_conf.use_callchain = true; 2866 if (callchain_register_param(&callchain_param) < 0) { 2867 ui__error("Can't register callchain params.\n"); 2868 return -EINVAL; 2869 } 2870 } 2871 2872 if (c2c.stitch_lbr && (mode != CALLCHAIN_LBR)) { 2873 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n" 2874 "Please apply --call-graph lbr when recording.\n"); 2875 c2c.stitch_lbr = false; 2876 } 2877 2878 callchain_param.record_mode = mode; 2879 callchain_param.min_percent = 0; 2880 return 0; 2881} 2882 2883static int setup_display(const char *str) 2884{ 2885 const char *display = str; 2886 2887 if (!strcmp(display, "tot")) 2888 c2c.display = DISPLAY_TOT_HITM; 2889 else if (!strcmp(display, "rmt")) 2890 c2c.display = DISPLAY_RMT_HITM; 2891 else if (!strcmp(display, "lcl")) 2892 c2c.display = DISPLAY_LCL_HITM; 2893 else if (!strcmp(display, "peer")) 2894 c2c.display = DISPLAY_SNP_PEER; 2895 else { 2896 pr_err("failed: unknown display type: %s\n", str); 2897 return -1; 2898 } 2899 2900 return 0; 2901} 2902 2903#define for_each_token(__tok, __buf, __sep, __tmp) \ 2904 for (__tok = strtok_r(__buf, __sep, &__tmp); __tok; \ 2905 __tok = strtok_r(NULL, __sep, &__tmp)) 2906 2907static int build_cl_output(char *cl_sort, bool no_source) 2908{ 2909 char *tok, *tmp, *buf = strdup(cl_sort); 2910 bool add_pid = false; 2911 bool add_tid = false; 2912 bool add_iaddr = false; 2913 bool add_sym = false; 2914 bool add_dso = false; 2915 bool add_src = false; 2916 int ret = 0; 2917 2918 if (!buf) 2919 return -ENOMEM; 2920 2921 for_each_token(tok, buf, ",", tmp) { 2922 if (!strcmp(tok, "tid")) { 2923 add_tid = true; 2924 } else if (!strcmp(tok, "pid")) { 2925 add_pid = true; 2926 } else if (!strcmp(tok, "iaddr")) { 2927 add_iaddr = true; 2928 add_sym = true; 2929 add_dso = true; 2930 add_src = no_source ? false : true; 2931 } else if (!strcmp(tok, "dso")) { 2932 add_dso = true; 2933 } else if (strcmp(tok, "offset")) { 2934 pr_err("unrecognized sort token: %s\n", tok); 2935 ret = -EINVAL; 2936 goto err; 2937 } 2938 } 2939 2940 if (asprintf(&c2c.cl_output, 2941 "%s%s%s%s%s%s%s%s%s%s%s%s", 2942 c2c.use_stdio ? "cl_num_empty," : "", 2943 c2c.display == DISPLAY_SNP_PEER ? "percent_rmt_peer," 2944 "percent_lcl_peer," : 2945 "percent_rmt_hitm," 2946 "percent_lcl_hitm,", 2947 "percent_stores_l1hit," 2948 "percent_stores_l1miss," 2949 "percent_stores_na," 2950 "offset,offset_node,dcacheline_count,", 2951 add_pid ? "pid," : "", 2952 add_tid ? "tid," : "", 2953 add_iaddr ? "iaddr," : "", 2954 c2c.display == DISPLAY_SNP_PEER ? "mean_rmt_peer," 2955 "mean_lcl_peer," : 2956 "mean_rmt," 2957 "mean_lcl,", 2958 "mean_load," 2959 "tot_recs," 2960 "cpucnt,", 2961 add_sym ? "symbol," : "", 2962 add_dso ? "dso," : "", 2963 add_src ? "cl_srcline," : "", 2964 "node") < 0) { 2965 ret = -ENOMEM; 2966 goto err; 2967 } 2968 2969 c2c.show_src = add_src; 2970err: 2971 free(buf); 2972 return ret; 2973} 2974 2975static int setup_coalesce(const char *coalesce, bool no_source) 2976{ 2977 const char *c = coalesce ?: coalesce_default; 2978 const char *sort_str = NULL; 2979 2980 if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0) 2981 return -ENOMEM; 2982 2983 if (build_cl_output(c2c.cl_sort, no_source)) 2984 return -1; 2985 2986 if (c2c.display == DISPLAY_TOT_HITM) 2987 sort_str = "tot_hitm"; 2988 else if (c2c.display == DISPLAY_RMT_HITM) 2989 sort_str = "rmt_hitm,lcl_hitm"; 2990 else if (c2c.display == DISPLAY_LCL_HITM) 2991 sort_str = "lcl_hitm,rmt_hitm"; 2992 else if (c2c.display == DISPLAY_SNP_PEER) 2993 sort_str = "tot_peer"; 2994 2995 if (asprintf(&c2c.cl_resort, "offset,%s", sort_str) < 0) 2996 return -ENOMEM; 2997 2998 pr_debug("coalesce sort fields: %s\n", c2c.cl_sort); 2999 pr_debug("coalesce resort fields: %s\n", c2c.cl_resort); 3000 pr_debug("coalesce output fields: %s\n", c2c.cl_output); 3001 return 0; 3002} 3003 3004static int perf_c2c__report(int argc, const char **argv) 3005{ 3006 struct itrace_synth_opts itrace_synth_opts = { 3007 .set = true, 3008 .mem = true, /* Only enable memory event */ 3009 .default_no_sample = true, 3010 }; 3011 3012 struct perf_session *session; 3013 struct ui_progress prog; 3014 struct perf_data data = { 3015 .mode = PERF_DATA_MODE_READ, 3016 }; 3017 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; 3018 const char *display = NULL; 3019 const char *coalesce = NULL; 3020 bool no_source = false; 3021 const struct option options[] = { 3022 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 3023 "file", "vmlinux pathname"), 3024 OPT_STRING('i', "input", &input_name, "file", 3025 "the input file to process"), 3026 OPT_INCR('N', "node-info", &c2c.node_info, 3027 "show extra node info in report (repeat for more info)"), 3028 OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"), 3029 OPT_BOOLEAN(0, "stats", &c2c.stats_only, 3030 "Display only statistic tables (implies --stdio)"), 3031 OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full, 3032 "Display full length of symbols"), 3033 OPT_BOOLEAN(0, "no-source", &no_source, 3034 "Do not display Source Line column"), 3035 OPT_BOOLEAN(0, "show-all", &c2c.show_all, 3036 "Show all captured HITM lines."), 3037 OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param, 3038 "print_type,threshold[,print_limit],order,sort_key[,branch],value", 3039 callchain_help, &parse_callchain_opt, 3040 callchain_default_opt), 3041 OPT_STRING('d', "display", &display, "Switch HITM output type", "tot,lcl,rmt,peer"), 3042 OPT_STRING('c', "coalesce", &coalesce, "coalesce fields", 3043 "coalesce fields: pid,tid,iaddr,dso"), 3044 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), 3045 OPT_BOOLEAN(0, "stitch-lbr", &c2c.stitch_lbr, 3046 "Enable LBR callgraph stitching approach"), 3047 OPT_BOOLEAN(0, "double-cl", &chk_double_cl, "Detect adjacent cacheline false sharing"), 3048 OPT_PARENT(c2c_options), 3049 OPT_END() 3050 }; 3051 int err = 0; 3052 const char *output_str, *sort_str = NULL; 3053 3054 argc = parse_options(argc, argv, options, report_c2c_usage, 3055 PARSE_OPT_STOP_AT_NON_OPTION); 3056 if (argc) 3057 usage_with_options(report_c2c_usage, options); 3058 3059#ifndef HAVE_SLANG_SUPPORT 3060 c2c.use_stdio = true; 3061#endif 3062 3063 if (c2c.stats_only) 3064 c2c.use_stdio = true; 3065 3066 err = symbol__validate_sym_arguments(); 3067 if (err) 3068 goto out; 3069 3070 if (!input_name || !strlen(input_name)) 3071 input_name = "perf.data"; 3072 3073 data.path = input_name; 3074 data.force = symbol_conf.force; 3075 3076 session = perf_session__new(&data, &c2c.tool); 3077 if (IS_ERR(session)) { 3078 err = PTR_ERR(session); 3079 pr_debug("Error creating perf session\n"); 3080 goto out; 3081 } 3082 3083 /* 3084 * Use the 'tot' as default display type if user doesn't specify it; 3085 * since Arm64 platform doesn't support HITMs flag, use 'peer' as the 3086 * default display type. 3087 */ 3088 if (!display) { 3089 if (!strcmp(perf_env__arch(&session->header.env), "arm64")) 3090 display = "peer"; 3091 else 3092 display = "tot"; 3093 } 3094 3095 err = setup_display(display); 3096 if (err) 3097 goto out_session; 3098 3099 err = setup_coalesce(coalesce, no_source); 3100 if (err) { 3101 pr_debug("Failed to initialize hists\n"); 3102 goto out_session; 3103 } 3104 3105 err = c2c_hists__init(&c2c.hists, "dcacheline", 2); 3106 if (err) { 3107 pr_debug("Failed to initialize hists\n"); 3108 goto out_session; 3109 } 3110 3111 session->itrace_synth_opts = &itrace_synth_opts; 3112 3113 err = setup_nodes(session); 3114 if (err) { 3115 pr_err("Failed setup nodes\n"); 3116 goto out_session; 3117 } 3118 3119 err = mem2node__init(&c2c.mem2node, &session->header.env); 3120 if (err) 3121 goto out_session; 3122 3123 err = setup_callchain(session->evlist); 3124 if (err) 3125 goto out_mem2node; 3126 3127 if (symbol__init(&session->header.env) < 0) 3128 goto out_mem2node; 3129 3130 /* No pipe support at the moment. */ 3131 if (perf_data__is_pipe(session->data)) { 3132 pr_debug("No pipe support at the moment.\n"); 3133 goto out_mem2node; 3134 } 3135 3136 if (c2c.use_stdio) 3137 use_browser = 0; 3138 else 3139 use_browser = 1; 3140 3141 setup_browser(false); 3142 3143 err = perf_session__process_events(session); 3144 if (err) { 3145 pr_err("failed to process sample\n"); 3146 goto out_mem2node; 3147 } 3148 3149 if (c2c.display != DISPLAY_SNP_PEER) 3150 output_str = "cl_idx," 3151 "dcacheline," 3152 "dcacheline_node," 3153 "dcacheline_count," 3154 "percent_costly_snoop," 3155 "tot_hitm,lcl_hitm,rmt_hitm," 3156 "tot_recs," 3157 "tot_loads," 3158 "tot_stores," 3159 "stores_l1hit,stores_l1miss,stores_na," 3160 "ld_fbhit,ld_l1hit,ld_l2hit," 3161 "ld_lclhit,lcl_hitm," 3162 "ld_rmthit,rmt_hitm," 3163 "dram_lcl,dram_rmt"; 3164 else 3165 output_str = "cl_idx," 3166 "dcacheline," 3167 "dcacheline_node," 3168 "dcacheline_count," 3169 "percent_costly_snoop," 3170 "tot_peer,lcl_peer,rmt_peer," 3171 "tot_recs," 3172 "tot_loads," 3173 "tot_stores," 3174 "stores_l1hit,stores_l1miss,stores_na," 3175 "ld_fbhit,ld_l1hit,ld_l2hit," 3176 "ld_lclhit,lcl_hitm," 3177 "ld_rmthit,rmt_hitm," 3178 "dram_lcl,dram_rmt"; 3179 3180 if (c2c.display == DISPLAY_TOT_HITM) 3181 sort_str = "tot_hitm"; 3182 else if (c2c.display == DISPLAY_RMT_HITM) 3183 sort_str = "rmt_hitm"; 3184 else if (c2c.display == DISPLAY_LCL_HITM) 3185 sort_str = "lcl_hitm"; 3186 else if (c2c.display == DISPLAY_SNP_PEER) 3187 sort_str = "tot_peer"; 3188 3189 c2c_hists__reinit(&c2c.hists, output_str, sort_str); 3190 3191 ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting..."); 3192 3193 hists__collapse_resort(&c2c.hists.hists, NULL); 3194 hists__output_resort_cb(&c2c.hists.hists, &prog, resort_shared_cl_cb); 3195 hists__iterate_cb(&c2c.hists.hists, resort_cl_cb); 3196 3197 ui_progress__finish(); 3198 3199 if (ui_quirks()) { 3200 pr_err("failed to setup UI\n"); 3201 goto out_mem2node; 3202 } 3203 3204 perf_c2c_display(session); 3205 3206out_mem2node: 3207 mem2node__exit(&c2c.mem2node); 3208out_session: 3209 perf_session__delete(session); 3210out: 3211 return err; 3212} 3213 3214static int parse_record_events(const struct option *opt, 3215 const char *str, int unset __maybe_unused) 3216{ 3217 bool *event_set = (bool *) opt->value; 3218 struct perf_pmu *pmu; 3219 3220 pmu = perf_mem_events_find_pmu(); 3221 if (!pmu) { 3222 pr_err("failed: there is no PMU that supports perf c2c\n"); 3223 exit(-1); 3224 } 3225 3226 if (!strcmp(str, "list")) { 3227 perf_pmu__mem_events_list(pmu); 3228 exit(0); 3229 } 3230 if (perf_pmu__mem_events_parse(pmu, str)) 3231 exit(-1); 3232 3233 *event_set = true; 3234 return 0; 3235} 3236 3237 3238static const char * const __usage_record[] = { 3239 "perf c2c record [<options>] [<command>]", 3240 "perf c2c record [<options>] -- <command> [<options>]", 3241 NULL 3242}; 3243 3244static const char * const *record_mem_usage = __usage_record; 3245 3246static int perf_c2c__record(int argc, const char **argv) 3247{ 3248 int rec_argc, i = 0, j; 3249 const char **rec_argv; 3250 int ret; 3251 bool all_user = false, all_kernel = false; 3252 bool event_set = false; 3253 struct perf_mem_event *e; 3254 struct perf_pmu *pmu; 3255 struct option options[] = { 3256 OPT_CALLBACK('e', "event", &event_set, "event", 3257 "event selector. Use 'perf c2c record -e list' to list available events", 3258 parse_record_events), 3259 OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"), 3260 OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"), 3261 OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"), 3262 OPT_PARENT(c2c_options), 3263 OPT_END() 3264 }; 3265 3266 pmu = perf_mem_events_find_pmu(); 3267 if (!pmu) { 3268 pr_err("failed: no PMU supports the memory events\n"); 3269 return -1; 3270 } 3271 3272 if (perf_pmu__mem_events_init(pmu)) { 3273 pr_err("failed: memory events not supported\n"); 3274 return -1; 3275 } 3276 3277 argc = parse_options(argc, argv, options, record_mem_usage, 3278 PARSE_OPT_KEEP_UNKNOWN); 3279 3280 /* Max number of arguments multiplied by number of PMUs that can support them. */ 3281 rec_argc = argc + 11 * (perf_pmu__mem_events_num_mem_pmus(pmu) + 1); 3282 3283 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 3284 if (!rec_argv) 3285 return -1; 3286 3287 rec_argv[i++] = "record"; 3288 3289 if (!event_set) { 3290 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD_STORE); 3291 /* 3292 * The load and store operations are required, use the event 3293 * PERF_MEM_EVENTS__LOAD_STORE if it is supported. 3294 */ 3295 if (e->tag) { 3296 e->record = true; 3297 rec_argv[i++] = "-W"; 3298 } else { 3299 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD); 3300 e->record = true; 3301 3302 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__STORE); 3303 e->record = true; 3304 } 3305 } 3306 3307 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD); 3308 if (e->record) 3309 rec_argv[i++] = "-W"; 3310 3311 rec_argv[i++] = "-d"; 3312 rec_argv[i++] = "--phys-data"; 3313 rec_argv[i++] = "--sample-cpu"; 3314 3315 ret = perf_mem_events__record_args(rec_argv, &i); 3316 if (ret) 3317 goto out; 3318 3319 if (all_user) 3320 rec_argv[i++] = "--all-user"; 3321 3322 if (all_kernel) 3323 rec_argv[i++] = "--all-kernel"; 3324 3325 for (j = 0; j < argc; j++, i++) 3326 rec_argv[i] = argv[j]; 3327 3328 if (verbose > 0) { 3329 pr_debug("calling: "); 3330 3331 j = 0; 3332 3333 while (rec_argv[j]) { 3334 pr_debug("%s ", rec_argv[j]); 3335 j++; 3336 } 3337 pr_debug("\n"); 3338 } 3339 3340 ret = cmd_record(i, rec_argv); 3341out: 3342 free(rec_argv); 3343 return ret; 3344} 3345 3346int cmd_c2c(int argc, const char **argv) 3347{ 3348 argc = parse_options(argc, argv, c2c_options, c2c_usage, 3349 PARSE_OPT_STOP_AT_NON_OPTION); 3350 3351 if (!argc) 3352 usage_with_options(c2c_usage, c2c_options); 3353 3354 if (strlen(argv[0]) > 2 && strstarts("record", argv[0])) { 3355 return perf_c2c__record(argc, argv); 3356 } else if (strlen(argv[0]) > 2 && strstarts("report", argv[0])) { 3357 return perf_c2c__report(argc, argv); 3358 } else { 3359 usage_with_options(c2c_usage, c2c_options); 3360 } 3361 3362 return 0; 3363} 3364