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/*-
* Copyright (C) 2012-2013 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/ioccom.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "nvmecontrol.h"
static void
print_perftest(struct nvme_io_test *io_test, bool perthread)
{
uint64_t io_completed = 0, iops, mbps;
uint32_t i;
for (i = 0; i < io_test->num_threads; i++)
io_completed += io_test->io_completed[i];
iops = io_completed/io_test->time;
mbps = iops * io_test->size / (1024*1024);
printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7ju MB/s: %4ju\n",
io_test->num_threads, io_test->size,
io_test->opc == NVME_OPC_READ ? "READ" : "WRITE",
io_test->time, (uintmax_t)iops, (uintmax_t)mbps);
if (perthread)
for (i = 0; i < io_test->num_threads; i++)
printf("\t%3d: %8ju IO/s\n", i,
(uintmax_t)io_test->io_completed[i]/io_test->time);
}
static void
perftest_usage(void)
{
fprintf(stderr, "usage:\n");
fprintf(stderr, PERFTEST_USAGE);
exit(1);
}
void
perftest(int argc, char *argv[])
{
struct nvme_io_test io_test;
int fd;
char ch;
char *p;
u_long ioctl_cmd = NVME_IO_TEST;
bool nflag, oflag, sflag, tflag;
int perthread = 0;
nflag = oflag = sflag = tflag = false;
memset(&io_test, 0, sizeof(io_test));
while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) {
switch (ch) {
case 'f':
if (!strcmp(optarg, "refthread"))
io_test.flags |= NVME_TEST_FLAG_REFTHREAD;
break;
case 'i':
if (!strcmp(optarg, "bio") ||
!strcmp(optarg, "wait"))
ioctl_cmd = NVME_BIO_TEST;
else if (!strcmp(optarg, "io") ||
!strcmp(optarg, "intr"))
ioctl_cmd = NVME_IO_TEST;
break;
case 'n':
nflag = true;
io_test.num_threads = strtoul(optarg, &p, 0);
if (p != NULL && *p != '\0') {
fprintf(stderr,
"\"%s\" not valid number of threads.\n",
optarg);
perftest_usage();
} else if (io_test.num_threads == 0 ||
io_test.num_threads > 128) {
fprintf(stderr,
"\"%s\" not valid number of threads.\n",
optarg);
perftest_usage();
}
break;
case 'o':
oflag = true;
if (!strcmp(optarg, "read") || !strcmp(optarg, "READ"))
io_test.opc = NVME_OPC_READ;
else if (!strcmp(optarg, "write") ||
!strcmp(optarg, "WRITE"))
io_test.opc = NVME_OPC_WRITE;
else {
fprintf(stderr, "\"%s\" not valid opcode.\n",
optarg);
perftest_usage();
}
break;
case 'p':
perthread = 1;
break;
case 's':
sflag = true;
io_test.size = strtoul(optarg, &p, 0);
if (p == NULL || *p == '\0' || toupper(*p) == 'B') {
// do nothing
} else if (toupper(*p) == 'K') {
io_test.size *= 1024;
} else if (toupper(*p) == 'M') {
io_test.size *= 1024 * 1024;
} else {
fprintf(stderr, "\"%s\" not valid size.\n",
optarg);
perftest_usage();
}
break;
case 't':
tflag = true;
io_test.time = strtoul(optarg, &p, 0);
if (p != NULL && *p != '\0') {
fprintf(stderr,
"\"%s\" not valid time duration.\n",
optarg);
perftest_usage();
}
break;
}
}
if (!nflag || !oflag || !sflag || !tflag || optind >= argc)
perftest_usage();
open_dev(argv[optind], &fd, 1, 1);
if (ioctl(fd, ioctl_cmd, &io_test) < 0)
err(1, "ioctl NVME_IO_TEST failed");
close(fd);
print_perftest(&io_test, perthread);
exit(0);
}
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