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("$FreeBSD$"); 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 46 static void 47 print_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 69 static void 70 perftest_usage(void) 71 { 72 fprintf(stderr, "usage:\n"); 73 fprintf(stderr, PERFTEST_USAGE); 74 exit(1); 75 } 76 77 void 78 perftest(int argc, char *argv[]) 79 { 80 struct nvme_io_test io_test; 81 int fd; 82 char ch; 83 char *p; 84 u_long ioctl_cmd = NVME_IO_TEST; 85 bool nflag, oflag, sflag, tflag; 86 int perthread = 0; 87 88 nflag = oflag = sflag = tflag = false; 89 90 memset(&io_test, 0, sizeof(io_test)); 91 92 while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) { 93 switch (ch) { 94 case 'f': 95 if (!strcmp(optarg, "refthread")) 96 io_test.flags |= NVME_TEST_FLAG_REFTHREAD; 97 break; 98 case 'i': 99 if (!strcmp(optarg, "bio") || 100 !strcmp(optarg, "wait")) 101 ioctl_cmd = NVME_BIO_TEST; 102 else if (!strcmp(optarg, "io") || 103 !strcmp(optarg, "intr")) 104 ioctl_cmd = NVME_IO_TEST; 105 break; 106 case 'n': 107 nflag = true; 108 io_test.num_threads = strtoul(optarg, &p, 0); 109 if (p != NULL && *p != '\0') { 110 fprintf(stderr, 111 "\"%s\" not valid number of threads.\n", 112 optarg); 113 perftest_usage(); 114 } else if (io_test.num_threads == 0 || 115 io_test.num_threads > 128) { 116 fprintf(stderr, 117 "\"%s\" not valid number of threads.\n", 118 optarg); 119 perftest_usage(); 120 } 121 break; 122 case 'o': 123 oflag = true; 124 if (!strcmp(optarg, "read") || !strcmp(optarg, "READ")) 125 io_test.opc = NVME_OPC_READ; 126 else if (!strcmp(optarg, "write") || 127 !strcmp(optarg, "WRITE")) 128 io_test.opc = NVME_OPC_WRITE; 129 else { 130 fprintf(stderr, "\"%s\" not valid opcode.\n", 131 optarg); 132 perftest_usage(); 133 } 134 break; 135 case 'p': 136 perthread = 1; 137 break; 138 case 's': 139 sflag = true; 140 io_test.size = strtoul(optarg, &p, 0); 141 if (p == NULL || *p == '\0' || toupper(*p) == 'B') { 142 // do nothing 143 } else if (toupper(*p) == 'K') { 144 io_test.size *= 1024; 145 } else if (toupper(*p) == 'M') { 146 io_test.size *= 1024 * 1024; 147 } else { 148 fprintf(stderr, "\"%s\" not valid size.\n", 149 optarg); 150 perftest_usage(); 151 } 152 break; 153 case 't': 154 tflag = true; 155 io_test.time = strtoul(optarg, &p, 0); 156 if (p != NULL && *p != '\0') { 157 fprintf(stderr, 158 "\"%s\" not valid time duration.\n", 159 optarg); 160 perftest_usage(); 161 } 162 break; 163 } 164 } 165 166 if (!nflag || !oflag || !sflag || !tflag || optind >= argc) 167 perftest_usage(); 168 169 open_dev(argv[optind], &fd, 1, 1); 170 if (ioctl(fd, ioctl_cmd, &io_test) < 0) 171 err(1, "ioctl NVME_IO_TEST failed"); 172 173 close(fd); 174 print_perftest(&io_test, perthread); 175 exit(0); 176 } 177