1/*	$NetBSD: perftest.c,v 1.5 2018/04/18 10:11:44 nonaka Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 *
6 * Copyright (C) 2012-2013 Intel Corporation
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32#ifndef lint
33__RCSID("$NetBSD: perftest.c,v 1.5 2018/04/18 10:11:44 nonaka Exp $");
34#if 0
35__FBSDID("$FreeBSD: head/sbin/nvmecontrol/perftest.c 329824 2018-02-22 13:32:31Z wma $");
36#endif
37#endif
38
39#include <sys/param.h>
40#include <sys/ioccom.h>
41
42#include <ctype.h>
43#include <err.h>
44#include <fcntl.h>
45#include <inttypes.h>
46#include <stdbool.h>
47#include <stddef.h>
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <unistd.h>
52
53#include "nvmectl.h"
54
55#ifdef PERFTEST_USAGE
56static void
57print_perftest(struct nvme_io_test *io_test, bool perthread)
58{
59	uint64_t	io_completed = 0, iops, mbps;
60	uint32_t	i;
61
62	for (i = 0; i < io_test->num_threads; i++)
63		io_completed += io_test->io_completed[i];
64
65	iops = io_completed/io_test->time;
66	mbps = iops * io_test->size / (1024*1024);
67
68	printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7ju MB/s: %4ju\n",
69	    io_test->num_threads, io_test->size,
70	    io_test->opc == NVME_OPC_READ ? "READ" : "WRITE",
71	    io_test->time, (uintmax_t)iops, (uintmax_t)mbps);
72
73	if (perthread)
74		for (i = 0; i < io_test->num_threads; i++)
75			printf("\t%3d: %8ju IO/s\n", i,
76			    (uintmax_t)io_test->io_completed[i]/io_test->time);
77}
78
79static void
80perftest_usage(void)
81{
82	fprintf(stderr, "usage:\n");
83	fprintf(stderr, "\t%s" PERFTEST_USAGE, getprogname());
84	exit(1);
85}
86
87void
88perftest(int argc, char *argv[])
89{
90	struct nvme_io_test		io_test;
91	int				fd;
92	int				ch;
93	char				*p;
94	u_long				ioctl_cmd = NVME_IO_TEST;
95	bool				nflag, oflag, sflag, tflag;
96	int				perthread = 0;
97
98	nflag = oflag = sflag = tflag = false;
99
100	memset(&io_test, 0, sizeof(io_test));
101
102	while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) {
103		switch (ch) {
104		case 'f':
105			if (!strcmp(optarg, "refthread"))
106				io_test.flags |= NVME_TEST_FLAG_REFTHREAD;
107			break;
108		case 'i':
109			if (!strcmp(optarg, "bio") ||
110			    !strcmp(optarg, "wait"))
111				ioctl_cmd = NVME_BIO_TEST;
112			else if (!strcmp(optarg, "io") ||
113				 !strcmp(optarg, "intr"))
114				ioctl_cmd = NVME_IO_TEST;
115			break;
116		case 'n':
117			nflag = true;
118			io_test.num_threads = strtoul(optarg, &p, 0);
119			if (p != NULL && *p != '\0') {
120				fprintf(stderr,
121				    "\"%s\" not valid number of threads.\n",
122				    optarg);
123				perftest_usage();
124			} else if (io_test.num_threads == 0 ||
125				   io_test.num_threads > 128) {
126				fprintf(stderr,
127				    "\"%s\" not valid number of threads.\n",
128				    optarg);
129				perftest_usage();
130			}
131			break;
132		case 'o':
133			oflag = true;
134			if (!strcmp(optarg, "read") || !strcmp(optarg, "READ"))
135				io_test.opc = NVME_OPC_READ;
136			else if (!strcmp(optarg, "write") ||
137				 !strcmp(optarg, "WRITE"))
138				io_test.opc = NVME_OPC_WRITE;
139			else {
140				fprintf(stderr, "\"%s\" not valid opcode.\n",
141				    optarg);
142				perftest_usage();
143			}
144			break;
145		case 'p':
146			perthread = 1;
147			break;
148		case 's':
149			sflag = true;
150			io_test.size = strtoul(optarg, &p, 0);
151			if (p == NULL || *p == '\0' || toupper(*p) == 'B') {
152				// do nothing
153			} else if (toupper(*p) == 'K') {
154				io_test.size *= 1024;
155			} else if (toupper(*p) == 'M') {
156				io_test.size *= 1024 * 1024;
157			} else {
158				fprintf(stderr, "\"%s\" not valid size.\n",
159				    optarg);
160				perftest_usage();
161			}
162			break;
163		case 't':
164			tflag = true;
165			io_test.time = strtoul(optarg, &p, 0);
166			if (p != NULL && *p != '\0') {
167				fprintf(stderr,
168				    "\"%s\" not valid time duration.\n",
169				    optarg);
170				perftest_usage();
171			}
172			break;
173		}
174	}
175
176	if (!nflag || !oflag || !sflag || !tflag || optind >= argc)
177		perftest_usage();
178
179	open_dev(argv[optind], &fd, 1, 1);
180	if (ioctl(fd, ioctl_cmd, &io_test) < 0)
181		err(1, "ioctl NVME_IO_TEST failed");
182
183	close(fd);
184	print_perftest(&io_test, perthread);
185	exit(0);
186}
187#endif
188