1 /* $NetBSD: perftest.c,v 1.2 2016/07/14 10:02:43 nonaka Exp $ */ 2 3 /*- 4 * Copyright (C) 2012-2013 Intel Corporation 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #ifndef lint 31 __RCSID("$NetBSD: perftest.c,v 1.2 2016/07/14 10:02:43 nonaka Exp $"); 32 #if 0 33 __FBSDID("$FreeBSD: head/sbin/nvmecontrol/perftest.c 257531 2013-11-01 22:05:29Z jimharris $"); 34 #endif 35 #endif 36 37 #include <sys/param.h> 38 #include <sys/ioccom.h> 39 40 #include <ctype.h> 41 #include <err.h> 42 #include <fcntl.h> 43 #include <inttypes.h> 44 #include <stdbool.h> 45 #include <stddef.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 51 #include "nvmectl.h" 52 53 #ifdef PERFTEST_USAGE 54 static void 55 print_perftest(struct nvme_io_test *io_test, bool perthread) 56 { 57 uint64_t io_completed = 0, iops, mbps; 58 uint32_t i; 59 60 for (i = 0; i < io_test->num_threads; i++) 61 io_completed += io_test->io_completed[i]; 62 63 iops = io_completed/io_test->time; 64 mbps = iops * io_test->size / (1024*1024); 65 66 printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7ju MB/s: %4ju\n", 67 io_test->num_threads, io_test->size, 68 io_test->opc == NVME_OPC_READ ? "READ" : "WRITE", 69 io_test->time, (uintmax_t)iops, (uintmax_t)mbps); 70 71 if (perthread) 72 for (i = 0; i < io_test->num_threads; i++) 73 printf("\t%3d: %8ju IO/s\n", i, 74 (uintmax_t)io_test->io_completed[i]/io_test->time); 75 } 76 77 static void 78 perftest_usage(void) 79 { 80 fprintf(stderr, "usage:\n"); 81 fprintf(stderr, PERFTEST_USAGE); 82 exit(1); 83 } 84 85 void 86 perftest(int argc, char *argv[]) 87 { 88 struct nvme_io_test io_test; 89 int fd; 90 int ch; 91 char *p; 92 u_long ioctl_cmd = NVME_IO_TEST; 93 bool nflag, oflag, sflag, tflag; 94 int perthread = 0; 95 96 nflag = oflag = sflag = tflag = false; 97 98 memset(&io_test, 0, sizeof(io_test)); 99 100 while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) { 101 switch (ch) { 102 case 'f': 103 if (!strcmp(optarg, "refthread")) 104 io_test.flags |= NVME_TEST_FLAG_REFTHREAD; 105 break; 106 case 'i': 107 if (!strcmp(optarg, "bio") || 108 !strcmp(optarg, "wait")) 109 ioctl_cmd = NVME_BIO_TEST; 110 else if (!strcmp(optarg, "io") || 111 !strcmp(optarg, "intr")) 112 ioctl_cmd = NVME_IO_TEST; 113 break; 114 case 'n': 115 nflag = true; 116 io_test.num_threads = strtoul(optarg, &p, 0); 117 if (p != NULL && *p != '\0') { 118 fprintf(stderr, 119 "\"%s\" not valid number of threads.\n", 120 optarg); 121 perftest_usage(); 122 } else if (io_test.num_threads == 0 || 123 io_test.num_threads > 128) { 124 fprintf(stderr, 125 "\"%s\" not valid number of threads.\n", 126 optarg); 127 perftest_usage(); 128 } 129 break; 130 case 'o': 131 oflag = true; 132 if (!strcmp(optarg, "read") || !strcmp(optarg, "READ")) 133 io_test.opc = NVME_OPC_READ; 134 else if (!strcmp(optarg, "write") || 135 !strcmp(optarg, "WRITE")) 136 io_test.opc = NVME_OPC_WRITE; 137 else { 138 fprintf(stderr, "\"%s\" not valid opcode.\n", 139 optarg); 140 perftest_usage(); 141 } 142 break; 143 case 'p': 144 perthread = 1; 145 break; 146 case 's': 147 sflag = true; 148 io_test.size = strtoul(optarg, &p, 0); 149 if (p == NULL || *p == '\0' || toupper(*p) == 'B') { 150 // do nothing 151 } else if (toupper(*p) == 'K') { 152 io_test.size *= 1024; 153 } else if (toupper(*p) == 'M') { 154 io_test.size *= 1024 * 1024; 155 } else { 156 fprintf(stderr, "\"%s\" not valid size.\n", 157 optarg); 158 perftest_usage(); 159 } 160 break; 161 case 't': 162 tflag = true; 163 io_test.time = strtoul(optarg, &p, 0); 164 if (p != NULL && *p != '\0') { 165 fprintf(stderr, 166 "\"%s\" not valid time duration.\n", 167 optarg); 168 perftest_usage(); 169 } 170 break; 171 } 172 } 173 174 if (!nflag || !oflag || !sflag || !tflag || optind >= argc) 175 perftest_usage(); 176 177 open_dev(argv[optind], &fd, 1, 1); 178 if (ioctl(fd, ioctl_cmd, &io_test) < 0) 179 err(1, "ioctl NVME_IO_TEST failed"); 180 181 close(fd); 182 print_perftest(&io_test, perthread); 183 exit(0); 184 } 185 #endif 186