perftest.c revision 256152
1/*- 2 * Copyright (C) 2012-2013 Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sbin/nvmecontrol/perftest.c 256152 2013-10-08 15:47:22Z jimharris $"); 29 30#include <sys/param.h> 31#include <sys/ioccom.h> 32 33#include <ctype.h> 34#include <err.h> 35#include <fcntl.h> 36#include <inttypes.h> 37#include <stdbool.h> 38#include <stddef.h> 39#include <stdio.h> 40#include <stdlib.h> 41#include <string.h> 42#include <unistd.h> 43 44#include "nvmecontrol.h" 45 46static void 47print_perftest(struct nvme_io_test *io_test, bool perthread) 48{ 49 uint64_t io_completed = 0, iops, mbps; 50 uint32_t i; 51 52 for (i = 0; i < io_test->num_threads; i++) 53 io_completed += io_test->io_completed[i]; 54 55 iops = io_completed/io_test->time; 56 mbps = iops * io_test->size / (1024*1024); 57 58 printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7ju MB/s: %4ju\n", 59 io_test->num_threads, io_test->size, 60 io_test->opc == NVME_OPC_READ ? "READ" : "WRITE", 61 io_test->time, (uintmax_t)iops, (uintmax_t)mbps); 62 63 if (perthread) 64 for (i = 0; i < io_test->num_threads; i++) 65 printf("\t%3d: %8ju IO/s\n", i, 66 (uintmax_t)io_test->io_completed[i]/io_test->time); 67 68 exit(1); 69} 70 71static void 72perftest_usage(void) 73{ 74 fprintf(stderr, "usage:\n"); 75 fprintf(stderr, PERFTEST_USAGE); 76 exit(1); 77} 78 79void 80perftest(int argc, char *argv[]) 81{ 82 struct nvme_io_test io_test; 83 int fd; 84 char ch; 85 char *p; 86 u_long ioctl_cmd = NVME_IO_TEST; 87 bool nflag, oflag, sflag, tflag; 88 int perthread = 0; 89 90 nflag = oflag = sflag = tflag = false; 91 92 memset(&io_test, 0, sizeof(io_test)); 93 94 while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) { 95 switch (ch) { 96 case 'f': 97 if (!strcmp(optarg, "refthread")) 98 io_test.flags |= NVME_TEST_FLAG_REFTHREAD; 99 break; 100 case 'i': 101 if (!strcmp(optarg, "bio") || 102 !strcmp(optarg, "wait")) 103 ioctl_cmd = NVME_BIO_TEST; 104 else if (!strcmp(optarg, "io") || 105 !strcmp(optarg, "intr")) 106 ioctl_cmd = NVME_IO_TEST; 107 break; 108 case 'n': 109 nflag = true; 110 io_test.num_threads = strtoul(optarg, &p, 0); 111 if (p != NULL && *p != '\0') { 112 fprintf(stderr, 113 "\"%s\" not valid number of threads.\n", 114 optarg); 115 perftest_usage(); 116 } else if (io_test.num_threads == 0 || 117 io_test.num_threads > 128) { 118 fprintf(stderr, 119 "\"%s\" not valid number of threads.\n", 120 optarg); 121 perftest_usage(); 122 } 123 break; 124 case 'o': 125 oflag = true; 126 if (!strcmp(optarg, "read") || !strcmp(optarg, "READ")) 127 io_test.opc = NVME_OPC_READ; 128 else if (!strcmp(optarg, "write") || 129 !strcmp(optarg, "WRITE")) 130 io_test.opc = NVME_OPC_WRITE; 131 else { 132 fprintf(stderr, "\"%s\" not valid opcode.\n", 133 optarg); 134 perftest_usage(); 135 } 136 break; 137 case 'p': 138 perthread = 1; 139 break; 140 case 's': 141 sflag = true; 142 io_test.size = strtoul(optarg, &p, 0); 143 if (p == NULL || *p == '\0' || toupper(*p) == 'B') { 144 // do nothing 145 } else if (toupper(*p) == 'K') { 146 io_test.size *= 1024; 147 } else if (toupper(*p) == 'M') { 148 io_test.size *= 1024 * 1024; 149 } else { 150 fprintf(stderr, "\"%s\" not valid size.\n", 151 optarg); 152 perftest_usage(); 153 } 154 break; 155 case 't': 156 tflag = true; 157 io_test.time = strtoul(optarg, &p, 0); 158 if (p != NULL && *p != '\0') { 159 fprintf(stderr, 160 "\"%s\" not valid time duration.\n", 161 optarg); 162 perftest_usage(); 163 } 164 break; 165 } 166 } 167 168 if (!nflag || !oflag || !sflag || !tflag || optind >= argc) 169 perftest_usage(); 170 171 open_dev(argv[optind], &fd, 1, 1); 172 if (ioctl(fd, ioctl_cmd, &io_test) < 0) 173 err(1, "ioctl NVME_IO_TEST failed"); 174 175 close(fd); 176 print_perftest(&io_test, perthread); 177 exit(0); 178} 179