sbin/nvmecontrol/perftest.c

   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 }