1#define JEMALLOC_STATS_C_ 2#include "jemalloc/internal/jemalloc_internal.h" 3 4#define CTL_GET(n, v, t) do { \ 5 size_t sz = sizeof(t); \ 6 xmallctl(n, v, &sz, NULL, 0); \ 7} while (0) 8 9#define CTL_M2_GET(n, i, v, t) do { \ 10 size_t mib[6]; \ 11 size_t miblen = sizeof(mib) / sizeof(size_t); \ 12 size_t sz = sizeof(t); \ 13 xmallctlnametomib(n, mib, &miblen); \ 14 mib[2] = (i); \ 15 xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ 16} while (0) 17 18#define CTL_M2_M4_GET(n, i, j, v, t) do { \ 19 size_t mib[6]; \ 20 size_t miblen = sizeof(mib) / sizeof(size_t); \ 21 size_t sz = sizeof(t); \ 22 xmallctlnametomib(n, mib, &miblen); \ 23 mib[2] = (i); \ 24 mib[4] = (j); \ 25 xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ 26} while (0) 27 28/******************************************************************************/ 29/* Data. */ 30 31bool opt_stats_print = false; 32 33size_t stats_cactive = 0; 34 35/******************************************************************************/ 36/* Function prototypes for non-inline static functions. */ 37 38static void stats_arena_bins_print(void (*write_cb)(void *, const char *), 39 void *cbopaque, unsigned i); 40static void stats_arena_lruns_print(void (*write_cb)(void *, const char *), 41 void *cbopaque, unsigned i); 42static void stats_arena_hchunks_print( 43 void (*write_cb)(void *, const char *), void *cbopaque, unsigned i); 44static void stats_arena_print(void (*write_cb)(void *, const char *), 45 void *cbopaque, unsigned i, bool bins, bool large, bool huge); 46 47/******************************************************************************/ 48 49static void 50stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque, 51 unsigned i) 52{ 53 size_t page; 54 bool config_tcache, in_gap; 55 unsigned nbins, j; 56 57 CTL_GET("arenas.page", &page, size_t); 58 59 CTL_GET("config.tcache", &config_tcache, bool); 60 if (config_tcache) { 61 malloc_cprintf(write_cb, cbopaque, 62 "bins: size ind allocated nmalloc" 63 " ndalloc nrequests curregs curruns regs" 64 " pgs util nfills nflushes newruns" 65 " reruns\n"); 66 } else { 67 malloc_cprintf(write_cb, cbopaque, 68 "bins: size ind allocated nmalloc" 69 " ndalloc nrequests curregs curruns regs" 70 " pgs util newruns reruns\n"); 71 } 72 CTL_GET("arenas.nbins", &nbins, unsigned); 73 for (j = 0, in_gap = false; j < nbins; j++) { 74 uint64_t nruns; 75 76 CTL_M2_M4_GET("stats.arenas.0.bins.0.nruns", i, j, &nruns, 77 uint64_t); 78 if (nruns == 0) 79 in_gap = true; 80 else { 81 size_t reg_size, run_size, curregs, availregs, milli; 82 size_t curruns; 83 uint32_t nregs; 84 uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes; 85 uint64_t reruns; 86 char util[6]; /* "x.yyy". */ 87 88 if (in_gap) { 89 malloc_cprintf(write_cb, cbopaque, 90 " ---\n"); 91 in_gap = false; 92 } 93 CTL_M2_GET("arenas.bin.0.size", j, ®_size, size_t); 94 CTL_M2_GET("arenas.bin.0.nregs", j, &nregs, uint32_t); 95 CTL_M2_GET("arenas.bin.0.run_size", j, &run_size, 96 size_t); 97 CTL_M2_M4_GET("stats.arenas.0.bins.0.nmalloc", i, j, 98 &nmalloc, uint64_t); 99 CTL_M2_M4_GET("stats.arenas.0.bins.0.ndalloc", i, j, 100 &ndalloc, uint64_t); 101 CTL_M2_M4_GET("stats.arenas.0.bins.0.curregs", i, j, 102 &curregs, size_t); 103 CTL_M2_M4_GET("stats.arenas.0.bins.0.nrequests", i, j, 104 &nrequests, uint64_t); 105 if (config_tcache) { 106 CTL_M2_M4_GET("stats.arenas.0.bins.0.nfills", i, 107 j, &nfills, uint64_t); 108 CTL_M2_M4_GET("stats.arenas.0.bins.0.nflushes", 109 i, j, &nflushes, uint64_t); 110 } 111 CTL_M2_M4_GET("stats.arenas.0.bins.0.nreruns", i, j, 112 &reruns, uint64_t); 113 CTL_M2_M4_GET("stats.arenas.0.bins.0.curruns", i, j, 114 &curruns, size_t); 115 116 availregs = nregs * curruns; 117 milli = (availregs != 0) ? (1000 * curregs) / availregs 118 : 1000; 119 assert(milli <= 1000); 120 if (milli < 10) { 121 malloc_snprintf(util, sizeof(util), 122 "0.00%zu", milli); 123 } else if (milli < 100) { 124 malloc_snprintf(util, sizeof(util), "0.0%zu", 125 milli); 126 } else if (milli < 1000) { 127 malloc_snprintf(util, sizeof(util), "0.%zu", 128 milli); 129 } else 130 malloc_snprintf(util, sizeof(util), "1"); 131 132 if (config_tcache) { 133 malloc_cprintf(write_cb, cbopaque, 134 "%20zu %3u %12zu %12"FMTu64 135 " %12"FMTu64" %12"FMTu64" %12zu" 136 " %12zu %4u %3zu %-5s %12"FMTu64 137 " %12"FMTu64" %12"FMTu64" %12"FMTu64"\n", 138 reg_size, j, curregs * reg_size, nmalloc, 139 ndalloc, nrequests, curregs, curruns, nregs, 140 run_size / page, util, nfills, nflushes, 141 nruns, reruns); 142 } else { 143 malloc_cprintf(write_cb, cbopaque, 144 "%20zu %3u %12zu %12"FMTu64 145 " %12"FMTu64" %12"FMTu64" %12zu" 146 " %12zu %4u %3zu %-5s %12"FMTu64 147 " %12"FMTu64"\n", 148 reg_size, j, curregs * reg_size, nmalloc, 149 ndalloc, nrequests, curregs, curruns, nregs, 150 run_size / page, util, nruns, reruns); 151 } 152 } 153 } 154 if (in_gap) { 155 malloc_cprintf(write_cb, cbopaque, 156 " ---\n"); 157 } 158} 159 160static void 161stats_arena_lruns_print(void (*write_cb)(void *, const char *), void *cbopaque, 162 unsigned i) 163{ 164 unsigned nbins, nlruns, j; 165 bool in_gap; 166 167 malloc_cprintf(write_cb, cbopaque, 168 "large: size ind allocated nmalloc ndalloc" 169 " nrequests curruns\n"); 170 CTL_GET("arenas.nbins", &nbins, unsigned); 171 CTL_GET("arenas.nlruns", &nlruns, unsigned); 172 for (j = 0, in_gap = false; j < nlruns; j++) { 173 uint64_t nmalloc, ndalloc, nrequests; 174 size_t run_size, curruns; 175 176 CTL_M2_M4_GET("stats.arenas.0.lruns.0.nmalloc", i, j, &nmalloc, 177 uint64_t); 178 CTL_M2_M4_GET("stats.arenas.0.lruns.0.ndalloc", i, j, &ndalloc, 179 uint64_t); 180 CTL_M2_M4_GET("stats.arenas.0.lruns.0.nrequests", i, j, 181 &nrequests, uint64_t); 182 if (nrequests == 0) 183 in_gap = true; 184 else { 185 CTL_M2_GET("arenas.lrun.0.size", j, &run_size, size_t); 186 CTL_M2_M4_GET("stats.arenas.0.lruns.0.curruns", i, j, 187 &curruns, size_t); 188 if (in_gap) { 189 malloc_cprintf(write_cb, cbopaque, 190 " ---\n"); 191 in_gap = false; 192 } 193 malloc_cprintf(write_cb, cbopaque, 194 "%20zu %3u %12zu %12"FMTu64" %12"FMTu64 195 " %12"FMTu64" %12zu\n", 196 run_size, nbins + j, curruns * run_size, nmalloc, 197 ndalloc, nrequests, curruns); 198 } 199 } 200 if (in_gap) { 201 malloc_cprintf(write_cb, cbopaque, 202 " ---\n"); 203 } 204} 205 206static void 207stats_arena_hchunks_print(void (*write_cb)(void *, const char *), 208 void *cbopaque, unsigned i) 209{ 210 unsigned nbins, nlruns, nhchunks, j; 211 bool in_gap; 212 213 malloc_cprintf(write_cb, cbopaque, 214 "huge: size ind allocated nmalloc ndalloc" 215 " nrequests curhchunks\n"); 216 CTL_GET("arenas.nbins", &nbins, unsigned); 217 CTL_GET("arenas.nlruns", &nlruns, unsigned); 218 CTL_GET("arenas.nhchunks", &nhchunks, unsigned); 219 for (j = 0, in_gap = false; j < nhchunks; j++) { 220 uint64_t nmalloc, ndalloc, nrequests; 221 size_t hchunk_size, curhchunks; 222 223 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nmalloc", i, j, 224 &nmalloc, uint64_t); 225 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.ndalloc", i, j, 226 &ndalloc, uint64_t); 227 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nrequests", i, j, 228 &nrequests, uint64_t); 229 if (nrequests == 0) 230 in_gap = true; 231 else { 232 CTL_M2_GET("arenas.hchunk.0.size", j, &hchunk_size, 233 size_t); 234 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.curhchunks", i, 235 j, &curhchunks, size_t); 236 if (in_gap) { 237 malloc_cprintf(write_cb, cbopaque, 238 " ---\n"); 239 in_gap = false; 240 } 241 malloc_cprintf(write_cb, cbopaque, 242 "%20zu %3u %12zu %12"FMTu64" %12"FMTu64 243 " %12"FMTu64" %12zu\n", 244 hchunk_size, nbins + nlruns + j, 245 curhchunks * hchunk_size, nmalloc, ndalloc, 246 nrequests, curhchunks); 247 } 248 } 249 if (in_gap) { 250 malloc_cprintf(write_cb, cbopaque, 251 " ---\n"); 252 } 253} 254 255static void 256stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque, 257 unsigned i, bool bins, bool large, bool huge) 258{ 259 unsigned nthreads; 260 const char *dss; 261 ssize_t lg_dirty_mult, decay_time; 262 size_t page, pactive, pdirty, mapped, retained; 263 size_t metadata_mapped, metadata_allocated; 264 uint64_t npurge, nmadvise, purged; 265 size_t small_allocated; 266 uint64_t small_nmalloc, small_ndalloc, small_nrequests; 267 size_t large_allocated; 268 uint64_t large_nmalloc, large_ndalloc, large_nrequests; 269 size_t huge_allocated; 270 uint64_t huge_nmalloc, huge_ndalloc, huge_nrequests; 271 272 CTL_GET("arenas.page", &page, size_t); 273 274 CTL_M2_GET("stats.arenas.0.nthreads", i, &nthreads, unsigned); 275 malloc_cprintf(write_cb, cbopaque, 276 "assigned threads: %u\n", nthreads); 277 CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *); 278 malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n", 279 dss); 280 CTL_M2_GET("stats.arenas.0.lg_dirty_mult", i, &lg_dirty_mult, ssize_t); 281 if (opt_purge == purge_mode_ratio) { 282 if (lg_dirty_mult >= 0) { 283 malloc_cprintf(write_cb, cbopaque, 284 "min active:dirty page ratio: %u:1\n", 285 (1U << lg_dirty_mult)); 286 } else { 287 malloc_cprintf(write_cb, cbopaque, 288 "min active:dirty page ratio: N/A\n"); 289 } 290 } 291 CTL_M2_GET("stats.arenas.0.decay_time", i, &decay_time, ssize_t); 292 if (opt_purge == purge_mode_decay) { 293 if (decay_time >= 0) { 294 malloc_cprintf(write_cb, cbopaque, "decay time: %zd\n", 295 decay_time); 296 } else 297 malloc_cprintf(write_cb, cbopaque, "decay time: N/A\n"); 298 } 299 CTL_M2_GET("stats.arenas.0.pactive", i, &pactive, size_t); 300 CTL_M2_GET("stats.arenas.0.pdirty", i, &pdirty, size_t); 301 CTL_M2_GET("stats.arenas.0.npurge", i, &npurge, uint64_t); 302 CTL_M2_GET("stats.arenas.0.nmadvise", i, &nmadvise, uint64_t); 303 CTL_M2_GET("stats.arenas.0.purged", i, &purged, uint64_t); 304 malloc_cprintf(write_cb, cbopaque, 305 "purging: dirty: %zu, sweeps: %"FMTu64", madvises: %"FMTu64", " 306 "purged: %"FMTu64"\n", pdirty, npurge, nmadvise, purged); 307 308 malloc_cprintf(write_cb, cbopaque, 309 " allocated nmalloc ndalloc" 310 " nrequests\n"); 311 CTL_M2_GET("stats.arenas.0.small.allocated", i, &small_allocated, 312 size_t); 313 CTL_M2_GET("stats.arenas.0.small.nmalloc", i, &small_nmalloc, uint64_t); 314 CTL_M2_GET("stats.arenas.0.small.ndalloc", i, &small_ndalloc, uint64_t); 315 CTL_M2_GET("stats.arenas.0.small.nrequests", i, &small_nrequests, 316 uint64_t); 317 malloc_cprintf(write_cb, cbopaque, 318 "small: %12zu %12"FMTu64" %12"FMTu64 319 " %12"FMTu64"\n", 320 small_allocated, small_nmalloc, small_ndalloc, small_nrequests); 321 CTL_M2_GET("stats.arenas.0.large.allocated", i, &large_allocated, 322 size_t); 323 CTL_M2_GET("stats.arenas.0.large.nmalloc", i, &large_nmalloc, uint64_t); 324 CTL_M2_GET("stats.arenas.0.large.ndalloc", i, &large_ndalloc, uint64_t); 325 CTL_M2_GET("stats.arenas.0.large.nrequests", i, &large_nrequests, 326 uint64_t); 327 malloc_cprintf(write_cb, cbopaque, 328 "large: %12zu %12"FMTu64" %12"FMTu64 329 " %12"FMTu64"\n", 330 large_allocated, large_nmalloc, large_ndalloc, large_nrequests); 331 CTL_M2_GET("stats.arenas.0.huge.allocated", i, &huge_allocated, size_t); 332 CTL_M2_GET("stats.arenas.0.huge.nmalloc", i, &huge_nmalloc, uint64_t); 333 CTL_M2_GET("stats.arenas.0.huge.ndalloc", i, &huge_ndalloc, uint64_t); 334 CTL_M2_GET("stats.arenas.0.huge.nrequests", i, &huge_nrequests, 335 uint64_t); 336 malloc_cprintf(write_cb, cbopaque, 337 "huge: %12zu %12"FMTu64" %12"FMTu64 338 " %12"FMTu64"\n", 339 huge_allocated, huge_nmalloc, huge_ndalloc, huge_nrequests); 340 malloc_cprintf(write_cb, cbopaque, 341 "total: %12zu %12"FMTu64" %12"FMTu64 342 " %12"FMTu64"\n", 343 small_allocated + large_allocated + huge_allocated, 344 small_nmalloc + large_nmalloc + huge_nmalloc, 345 small_ndalloc + large_ndalloc + huge_ndalloc, 346 small_nrequests + large_nrequests + huge_nrequests); 347 malloc_cprintf(write_cb, cbopaque, 348 "active: %12zu\n", pactive * page); 349 CTL_M2_GET("stats.arenas.0.mapped", i, &mapped, size_t); 350 malloc_cprintf(write_cb, cbopaque, 351 "mapped: %12zu\n", mapped); 352 CTL_M2_GET("stats.arenas.0.retained", i, &retained, size_t); 353 malloc_cprintf(write_cb, cbopaque, 354 "retained: %12zu\n", retained); 355 CTL_M2_GET("stats.arenas.0.metadata.mapped", i, &metadata_mapped, 356 size_t); 357 CTL_M2_GET("stats.arenas.0.metadata.allocated", i, &metadata_allocated, 358 size_t); 359 malloc_cprintf(write_cb, cbopaque, 360 "metadata: mapped: %zu, allocated: %zu\n", 361 metadata_mapped, metadata_allocated); 362 363 if (bins) 364 stats_arena_bins_print(write_cb, cbopaque, i); 365 if (large) 366 stats_arena_lruns_print(write_cb, cbopaque, i); 367 if (huge) 368 stats_arena_hchunks_print(write_cb, cbopaque, i); 369} 370 371void 372stats_print(void (*write_cb)(void *, const char *), void *cbopaque, 373 const char *opts) 374{ 375 int err; 376 uint64_t epoch; 377 size_t u64sz; 378 bool general = true; 379 bool merged = true; 380 bool unmerged = true; 381 bool bins = true; 382 bool large = true; 383 bool huge = true; 384 385 /* 386 * Refresh stats, in case mallctl() was called by the application. 387 * 388 * Check for OOM here, since refreshing the ctl cache can trigger 389 * allocation. In practice, none of the subsequent mallctl()-related 390 * calls in this function will cause OOM if this one succeeds. 391 * */ 392 epoch = 1; 393 u64sz = sizeof(uint64_t); 394 err = je_mallctl("epoch", &epoch, &u64sz, &epoch, sizeof(uint64_t)); 395 if (err != 0) { 396 if (err == EAGAIN) { 397 malloc_write("<jemalloc>: Memory allocation failure in " 398 "mallctl(\"epoch\", ...)\n"); 399 return; 400 } 401 malloc_write("<jemalloc>: Failure in mallctl(\"epoch\", " 402 "...)\n"); 403 abort(); 404 } 405 406 if (opts != NULL) { 407 unsigned i; 408 409 for (i = 0; opts[i] != '\0'; i++) { 410 switch (opts[i]) { 411 case 'g': 412 general = false; 413 break; 414 case 'm': 415 merged = false; 416 break; 417 case 'a': 418 unmerged = false; 419 break; 420 case 'b': 421 bins = false; 422 break; 423 case 'l': 424 large = false; 425 break; 426 case 'h': 427 huge = false; 428 break; 429 default:; 430 } 431 } 432 } 433 434 malloc_cprintf(write_cb, cbopaque, 435 "___ Begin jemalloc statistics ___\n"); 436 if (general) { 437 const char *cpv; 438 bool bv; 439 unsigned uv; 440 ssize_t ssv; 441 size_t sv, bsz, usz, ssz, sssz, cpsz; 442 443 bsz = sizeof(bool); 444 usz = sizeof(unsigned); 445 ssz = sizeof(size_t); 446 sssz = sizeof(ssize_t); 447 cpsz = sizeof(const char *); 448 449 CTL_GET("version", &cpv, const char *); 450 malloc_cprintf(write_cb, cbopaque, "Version: %s\n", cpv); 451 CTL_GET("config.debug", &bv, bool); 452 malloc_cprintf(write_cb, cbopaque, "Assertions %s\n", 453 bv ? "enabled" : "disabled"); 454 malloc_cprintf(write_cb, cbopaque, 455 "config.malloc_conf: \"%s\"\n", config_malloc_conf); 456 457#define OPT_WRITE_BOOL(n) \ 458 if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0) { \ 459 malloc_cprintf(write_cb, cbopaque, \ 460 " opt."#n": %s\n", bv ? "true" : "false"); \ 461 } 462#define OPT_WRITE_BOOL_MUTABLE(n, m) { \ 463 bool bv2; \ 464 if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0 && \ 465 je_mallctl(#m, &bv2, &bsz, NULL, 0) == 0) { \ 466 malloc_cprintf(write_cb, cbopaque, \ 467 " opt."#n": %s ("#m": %s)\n", bv ? "true" \ 468 : "false", bv2 ? "true" : "false"); \ 469 } \ 470} 471#define OPT_WRITE_UNSIGNED(n) \ 472 if (je_mallctl("opt."#n, &uv, &usz, NULL, 0) == 0) { \ 473 malloc_cprintf(write_cb, cbopaque, \ 474 " opt."#n": %u\n", uv); \ 475 } 476#define OPT_WRITE_SIZE_T(n) \ 477 if (je_mallctl("opt."#n, &sv, &ssz, NULL, 0) == 0) { \ 478 malloc_cprintf(write_cb, cbopaque, \ 479 " opt."#n": %zu\n", sv); \ 480 } 481#define OPT_WRITE_SSIZE_T(n) \ 482 if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0) { \ 483 malloc_cprintf(write_cb, cbopaque, \ 484 " opt."#n": %zd\n", ssv); \ 485 } 486#define OPT_WRITE_SSIZE_T_MUTABLE(n, m) { \ 487 ssize_t ssv2; \ 488 if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0 && \ 489 je_mallctl(#m, &ssv2, &sssz, NULL, 0) == 0) { \ 490 malloc_cprintf(write_cb, cbopaque, \ 491 " opt."#n": %zd ("#m": %zd)\n", \ 492 ssv, ssv2); \ 493 } \ 494} 495#define OPT_WRITE_CHAR_P(n) \ 496 if (je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0) == 0) { \ 497 malloc_cprintf(write_cb, cbopaque, \ 498 " opt."#n": \"%s\"\n", cpv); \ 499 } 500 501 malloc_cprintf(write_cb, cbopaque, 502 "Run-time option settings:\n"); 503 OPT_WRITE_BOOL(abort) 504 OPT_WRITE_SIZE_T(lg_chunk) 505 OPT_WRITE_CHAR_P(dss) 506 OPT_WRITE_UNSIGNED(narenas) 507 OPT_WRITE_CHAR_P(purge) 508 if (opt_purge == purge_mode_ratio) { 509 OPT_WRITE_SSIZE_T_MUTABLE(lg_dirty_mult, 510 arenas.lg_dirty_mult) 511 } 512 if (opt_purge == purge_mode_decay) 513 OPT_WRITE_SSIZE_T_MUTABLE(decay_time, arenas.decay_time) 514 OPT_WRITE_BOOL(stats_print) 515 OPT_WRITE_CHAR_P(junk) 516 OPT_WRITE_SIZE_T(quarantine) 517 OPT_WRITE_BOOL(redzone) 518 OPT_WRITE_BOOL(zero) 519 OPT_WRITE_BOOL(utrace) 520 OPT_WRITE_BOOL(valgrind) 521 OPT_WRITE_BOOL(xmalloc) 522 OPT_WRITE_BOOL(tcache) 523 OPT_WRITE_SSIZE_T(lg_tcache_max) 524 OPT_WRITE_BOOL(prof) 525 OPT_WRITE_CHAR_P(prof_prefix) 526 OPT_WRITE_BOOL_MUTABLE(prof_active, prof.active) 527 OPT_WRITE_BOOL_MUTABLE(prof_thread_active_init, 528 prof.thread_active_init) 529 OPT_WRITE_SSIZE_T(lg_prof_sample) 530 OPT_WRITE_BOOL(prof_accum) 531 OPT_WRITE_SSIZE_T(lg_prof_interval) 532 OPT_WRITE_BOOL(prof_gdump) 533 OPT_WRITE_BOOL(prof_final) 534 OPT_WRITE_BOOL(prof_leak) 535 536#undef OPT_WRITE_BOOL 537#undef OPT_WRITE_BOOL_MUTABLE 538#undef OPT_WRITE_SIZE_T 539#undef OPT_WRITE_SSIZE_T 540#undef OPT_WRITE_CHAR_P 541 542 malloc_cprintf(write_cb, cbopaque, "CPUs: %u\n", ncpus); 543 544 CTL_GET("arenas.narenas", &uv, unsigned); 545 malloc_cprintf(write_cb, cbopaque, "Arenas: %u\n", uv); 546 547 malloc_cprintf(write_cb, cbopaque, "Pointer size: %zu\n", 548 sizeof(void *)); 549 550 CTL_GET("arenas.quantum", &sv, size_t); 551 malloc_cprintf(write_cb, cbopaque, "Quantum size: %zu\n", 552 sv); 553 554 CTL_GET("arenas.page", &sv, size_t); 555 malloc_cprintf(write_cb, cbopaque, "Page size: %zu\n", sv); 556 557 CTL_GET("arenas.lg_dirty_mult", &ssv, ssize_t); 558 if (opt_purge == purge_mode_ratio) { 559 if (ssv >= 0) { 560 malloc_cprintf(write_cb, cbopaque, 561 "Min active:dirty page ratio per arena: " 562 "%u:1\n", (1U << ssv)); 563 } else { 564 malloc_cprintf(write_cb, cbopaque, 565 "Min active:dirty page ratio per arena: " 566 "N/A\n"); 567 } 568 } 569 CTL_GET("arenas.decay_time", &ssv, ssize_t); 570 if (opt_purge == purge_mode_decay) { 571 malloc_cprintf(write_cb, cbopaque, 572 "Unused dirty page decay time: %zd%s\n", 573 ssv, (ssv < 0) ? " (no decay)" : ""); 574 } 575 if (je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0) == 0) { 576 malloc_cprintf(write_cb, cbopaque, 577 "Maximum thread-cached size class: %zu\n", sv); 578 } 579 if (je_mallctl("opt.prof", &bv, &bsz, NULL, 0) == 0 && bv) { 580 CTL_GET("prof.lg_sample", &sv, size_t); 581 malloc_cprintf(write_cb, cbopaque, 582 "Average profile sample interval: %"FMTu64 583 " (2^%zu)\n", (((uint64_t)1U) << sv), sv); 584 585 CTL_GET("opt.lg_prof_interval", &ssv, ssize_t); 586 if (ssv >= 0) { 587 malloc_cprintf(write_cb, cbopaque, 588 "Average profile dump interval: %"FMTu64 589 " (2^%zd)\n", 590 (((uint64_t)1U) << ssv), ssv); 591 } else { 592 malloc_cprintf(write_cb, cbopaque, 593 "Average profile dump interval: N/A\n"); 594 } 595 } 596 CTL_GET("opt.lg_chunk", &sv, size_t); 597 malloc_cprintf(write_cb, cbopaque, 598 "Chunk size: %zu (2^%zu)\n", (ZU(1) << sv), sv); 599 } 600 601 if (config_stats) { 602 size_t *cactive; 603 size_t allocated, active, metadata, resident, mapped, retained; 604 605 CTL_GET("stats.cactive", &cactive, size_t *); 606 CTL_GET("stats.allocated", &allocated, size_t); 607 CTL_GET("stats.active", &active, size_t); 608 CTL_GET("stats.metadata", &metadata, size_t); 609 CTL_GET("stats.resident", &resident, size_t); 610 CTL_GET("stats.mapped", &mapped, size_t); 611 CTL_GET("stats.retained", &retained, size_t); 612 malloc_cprintf(write_cb, cbopaque, 613 "Allocated: %zu, active: %zu, metadata: %zu," 614 " resident: %zu, mapped: %zu, retained: %zu\n", 615 allocated, active, metadata, resident, mapped, retained); 616 malloc_cprintf(write_cb, cbopaque, 617 "Current active ceiling: %zu\n", 618 atomic_read_z(cactive)); 619 620 if (merged) { 621 unsigned narenas; 622 623 CTL_GET("arenas.narenas", &narenas, unsigned); 624 { 625 VARIABLE_ARRAY(bool, initialized, narenas); 626 size_t isz; 627 unsigned i, ninitialized; 628 629 isz = sizeof(bool) * narenas; 630 xmallctl("arenas.initialized", initialized, 631 &isz, NULL, 0); 632 for (i = ninitialized = 0; i < narenas; i++) { 633 if (initialized[i]) 634 ninitialized++; 635 } 636 637 if (ninitialized > 1 || !unmerged) { 638 /* Print merged arena stats. */ 639 malloc_cprintf(write_cb, cbopaque, 640 "\nMerged arenas stats:\n"); 641 stats_arena_print(write_cb, cbopaque, 642 narenas, bins, large, huge); 643 } 644 } 645 } 646 647 if (unmerged) { 648 unsigned narenas; 649 650 /* Print stats for each arena. */ 651 652 CTL_GET("arenas.narenas", &narenas, unsigned); 653 { 654 VARIABLE_ARRAY(bool, initialized, narenas); 655 size_t isz; 656 unsigned i; 657 658 isz = sizeof(bool) * narenas; 659 xmallctl("arenas.initialized", initialized, 660 &isz, NULL, 0); 661 662 for (i = 0; i < narenas; i++) { 663 if (initialized[i]) { 664 malloc_cprintf(write_cb, 665 cbopaque, 666 "\narenas[%u]:\n", i); 667 stats_arena_print(write_cb, 668 cbopaque, i, bins, large, 669 huge); 670 } 671 } 672 } 673 } 674 } 675 malloc_cprintf(write_cb, cbopaque, "--- End jemalloc statistics ---\n"); 676} 677