751 lines
17 KiB
C
751 lines
17 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2003 Poul-Henning Kamp
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* Copyright (c) 2015 Spectra Logic Corporation
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* Copyright (c) 2017 Alexander Motin <mav@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libutil.h>
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#include <paths.h>
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#include <err.h>
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#include <geom/geom_disk.h>
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#include <sysexits.h>
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#include <sys/aio.h>
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#include <sys/disk.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#define NAIO 128
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#define MAXTX (8*1024*1024)
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#define MEGATX (1024*1024)
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static void
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usage(void)
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{
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fprintf(stderr, "usage: diskinfo [-cipsStvw] disk ...\n");
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exit (1);
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}
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static int opt_c, opt_i, opt_p, opt_s, opt_S, opt_t, opt_v, opt_w;
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static bool candelete(int fd);
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static void speeddisk(int fd, off_t mediasize, u_int sectorsize);
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static void commandtime(int fd, off_t mediasize, u_int sectorsize);
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static void iopsbench(int fd, off_t mediasize, u_int sectorsize);
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static void rotationrate(int fd, char *buf, size_t buflen);
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static void slogbench(int fd, int isreg, off_t mediasize, u_int sectorsize);
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static int zonecheck(int fd, uint32_t *zone_mode, char *zone_str,
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size_t zone_str_len);
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static uint8_t *buf;
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int
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main(int argc, char **argv)
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{
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struct stat sb;
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int i, ch, fd, error, exitval = 0;
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char tstr[BUFSIZ], ident[DISK_IDENT_SIZE], physpath[MAXPATHLEN];
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char zone_desc[64];
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char rrate[64];
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struct diocgattr_arg arg;
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off_t mediasize, stripesize, stripeoffset;
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u_int sectorsize, fwsectors, fwheads, zoned = 0, isreg;
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uint32_t zone_mode;
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while ((ch = getopt(argc, argv, "cipsStvw")) != -1) {
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switch (ch) {
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case 'c':
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opt_c = 1;
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opt_v = 1;
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break;
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case 'i':
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opt_i = 1;
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opt_v = 1;
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break;
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case 'p':
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opt_p = 1;
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break;
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case 's':
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opt_s = 1;
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break;
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case 'S':
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opt_S = 1;
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opt_v = 1;
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break;
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case 't':
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opt_t = 1;
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opt_v = 1;
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break;
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case 'v':
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opt_v = 1;
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break;
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case 'w':
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opt_w = 1;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1)
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usage();
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if ((opt_p && opt_s) || ((opt_p || opt_s) && (opt_c || opt_i || opt_t || opt_v))) {
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warnx("-p or -s cannot be used with other options");
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usage();
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}
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if (opt_S && !opt_w) {
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warnx("-S require also -w");
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usage();
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}
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if (posix_memalign((void **)&buf, PAGE_SIZE, MAXTX))
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errx(1, "Can't allocate memory buffer");
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for (i = 0; i < argc; i++) {
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fd = open(argv[i], (opt_w ? O_RDWR : O_RDONLY) | O_DIRECT);
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if (fd < 0 && errno == ENOENT && *argv[i] != '/') {
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snprintf(tstr, sizeof(tstr), "%s%s", _PATH_DEV, argv[i]);
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fd = open(tstr, O_RDONLY);
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}
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if (fd < 0) {
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warn("%s", argv[i]);
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exit(1);
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}
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error = fstat(fd, &sb);
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if (error != 0) {
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warn("cannot stat %s", argv[i]);
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exitval = 1;
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goto out;
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}
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isreg = S_ISREG(sb.st_mode);
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if (isreg) {
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mediasize = sb.st_size;
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sectorsize = S_BLKSIZE;
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fwsectors = 0;
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fwheads = 0;
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stripesize = sb.st_blksize;
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stripeoffset = 0;
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if (opt_p || opt_s) {
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warnx("-p and -s only operate on physical devices: %s", argv[i]);
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goto out;
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}
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} else {
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if (opt_p) {
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if (ioctl(fd, DIOCGPHYSPATH, physpath) == 0) {
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printf("%s\n", physpath);
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} else {
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warnx("Failed to determine physpath for: %s", argv[i]);
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}
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goto out;
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}
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if (opt_s) {
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if (ioctl(fd, DIOCGIDENT, ident) == 0) {
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printf("%s\n", ident);
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} else {
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warnx("Failed to determine serial number for: %s", argv[i]);
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}
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goto out;
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}
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error = ioctl(fd, DIOCGMEDIASIZE, &mediasize);
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if (error) {
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warnx("%s: ioctl(DIOCGMEDIASIZE) failed, probably not a disk.", argv[i]);
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exitval = 1;
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goto out;
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}
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error = ioctl(fd, DIOCGSECTORSIZE, §orsize);
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if (error) {
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warnx("%s: ioctl(DIOCGSECTORSIZE) failed, probably not a disk.", argv[i]);
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exitval = 1;
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goto out;
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}
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error = ioctl(fd, DIOCGFWSECTORS, &fwsectors);
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if (error)
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fwsectors = 0;
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error = ioctl(fd, DIOCGFWHEADS, &fwheads);
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if (error)
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fwheads = 0;
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error = ioctl(fd, DIOCGSTRIPESIZE, &stripesize);
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if (error)
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stripesize = 0;
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error = ioctl(fd, DIOCGSTRIPEOFFSET, &stripeoffset);
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if (error)
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stripeoffset = 0;
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error = zonecheck(fd, &zone_mode, zone_desc, sizeof(zone_desc));
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if (error == 0)
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zoned = 1;
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}
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if (!opt_v) {
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printf("%s", argv[i]);
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printf("\t%u", sectorsize);
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printf("\t%jd", (intmax_t)mediasize);
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printf("\t%jd", (intmax_t)mediasize/sectorsize);
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printf("\t%jd", (intmax_t)stripesize);
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printf("\t%jd", (intmax_t)stripeoffset);
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if (fwsectors != 0 && fwheads != 0) {
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printf("\t%jd", (intmax_t)mediasize /
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(fwsectors * fwheads * sectorsize));
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printf("\t%u", fwheads);
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printf("\t%u", fwsectors);
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}
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} else {
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humanize_number(tstr, 5, (int64_t)mediasize, "",
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HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
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printf("%s\n", argv[i]);
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printf("\t%-12u\t# sectorsize\n", sectorsize);
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printf("\t%-12jd\t# mediasize in bytes (%s)\n",
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(intmax_t)mediasize, tstr);
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printf("\t%-12jd\t# mediasize in sectors\n",
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(intmax_t)mediasize/sectorsize);
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printf("\t%-12jd\t# stripesize\n", stripesize);
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printf("\t%-12jd\t# stripeoffset\n", stripeoffset);
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if (fwsectors != 0 && fwheads != 0) {
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printf("\t%-12jd\t# Cylinders according to firmware.\n", (intmax_t)mediasize /
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(fwsectors * fwheads * sectorsize));
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printf("\t%-12u\t# Heads according to firmware.\n", fwheads);
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printf("\t%-12u\t# Sectors according to firmware.\n", fwsectors);
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}
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strlcpy(arg.name, "GEOM::descr", sizeof(arg.name));
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arg.len = sizeof(arg.value.str);
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if (ioctl(fd, DIOCGATTR, &arg) == 0)
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printf("\t%-12s\t# Disk descr.\n", arg.value.str);
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if (ioctl(fd, DIOCGIDENT, ident) == 0)
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printf("\t%-12s\t# Disk ident.\n", ident);
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strlcpy(arg.name, "GEOM::attachment", sizeof(arg.name));
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arg.len = sizeof(arg.value.str);
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if (ioctl(fd, DIOCGATTR, &arg) == 0)
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printf("\t%-12s\t# Attachment\n", arg.value.str);
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if (ioctl(fd, DIOCGPHYSPATH, physpath) == 0)
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printf("\t%-12s\t# Physical path\n", physpath);
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printf("\t%-12s\t# TRIM/UNMAP support\n",
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candelete(fd) ? "Yes" : "No");
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rotationrate(fd, rrate, sizeof(rrate));
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printf("\t%-12s\t# Rotation rate in RPM\n", rrate);
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if (zoned != 0)
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printf("\t%-12s\t# Zone Mode\n", zone_desc);
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}
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printf("\n");
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if (opt_c)
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commandtime(fd, mediasize, sectorsize);
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if (opt_t)
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speeddisk(fd, mediasize, sectorsize);
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if (opt_i)
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iopsbench(fd, mediasize, sectorsize);
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if (opt_S)
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slogbench(fd, isreg, mediasize, sectorsize);
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out:
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close(fd);
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}
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free(buf);
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exit (exitval);
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}
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static bool
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candelete(int fd)
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{
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struct diocgattr_arg arg;
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strlcpy(arg.name, "GEOM::candelete", sizeof(arg.name));
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arg.len = sizeof(arg.value.i);
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if (ioctl(fd, DIOCGATTR, &arg) == 0)
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return (arg.value.i != 0);
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else
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return (false);
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}
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static void
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rotationrate(int fd, char *rate, size_t buflen)
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{
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struct diocgattr_arg arg;
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int ret;
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strlcpy(arg.name, "GEOM::rotation_rate", sizeof(arg.name));
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arg.len = sizeof(arg.value.u16);
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ret = ioctl(fd, DIOCGATTR, &arg);
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if (ret < 0 || arg.value.u16 == DISK_RR_UNKNOWN)
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snprintf(rate, buflen, "Unknown");
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else if (arg.value.u16 == DISK_RR_NON_ROTATING)
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snprintf(rate, buflen, "%d", 0);
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else if (arg.value.u16 >= DISK_RR_MIN && arg.value.u16 <= DISK_RR_MAX)
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snprintf(rate, buflen, "%d", arg.value.u16);
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else
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snprintf(rate, buflen, "Invalid");
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}
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static void
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rdsect(int fd, off_t blockno, u_int sectorsize)
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{
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int error;
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if (lseek(fd, (off_t)blockno * sectorsize, SEEK_SET) == -1)
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err(1, "lseek");
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error = read(fd, buf, sectorsize);
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if (error == -1)
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err(1, "read");
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if (error != (int)sectorsize)
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errx(1, "disk too small for test.");
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}
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static void
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rdmega(int fd)
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{
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int error;
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error = read(fd, buf, MEGATX);
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if (error == -1)
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err(1, "read");
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if (error != MEGATX)
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errx(1, "disk too small for test.");
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}
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static struct timeval tv1, tv2;
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static void
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T0(void)
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{
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fflush(stdout);
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sync();
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sleep(1);
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sync();
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sync();
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gettimeofday(&tv1, NULL);
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}
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static double
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delta_t(void)
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{
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double dt;
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gettimeofday(&tv2, NULL);
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dt = (tv2.tv_usec - tv1.tv_usec) / 1e6;
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dt += (tv2.tv_sec - tv1.tv_sec);
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return (dt);
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}
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static void
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TN(int count)
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{
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double dt;
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dt = delta_t();
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printf("%5d iter in %10.6f sec = %8.3f msec\n",
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count, dt, dt * 1000.0 / count);
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}
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static void
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TR(double count)
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{
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double dt;
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dt = delta_t();
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printf("%8.0f kbytes in %10.6f sec = %8.0f kbytes/sec\n",
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count, dt, count / dt);
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}
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static void
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TI(double count)
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{
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double dt;
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dt = delta_t();
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printf("%8.0f ops in %10.6f sec = %8.0f IOPS\n",
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count, dt, count / dt);
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}
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static void
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TS(u_int size, int count)
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{
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double dt;
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dt = delta_t();
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printf("%8.1f usec/IO = %8.1f Mbytes/s\n",
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dt * 1000000.0 / count, (double)size * count / dt / (1024 * 1024));
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}
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static void
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speeddisk(int fd, off_t mediasize, u_int sectorsize)
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{
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int bulk, i;
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off_t b0, b1, sectorcount, step;
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/*
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* Drives smaller than 1MB produce negative sector numbers,
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* as do 2048 or fewer sectors.
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*/
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sectorcount = mediasize / sectorsize;
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if (mediasize < 1024 * 1024 || sectorcount < 2048)
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return;
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step = 1ULL << (flsll(sectorcount / (4 * 200)) - 1);
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if (step > 16384)
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step = 16384;
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bulk = mediasize / (1024 * 1024);
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if (bulk > 100)
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bulk = 100;
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printf("Seek times:\n");
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printf("\tFull stroke:\t");
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b0 = 0;
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b1 = sectorcount - step;
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T0();
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for (i = 0; i < 125; i++) {
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rdsect(fd, b0, sectorsize);
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b0 += step;
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rdsect(fd, b1, sectorsize);
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b1 -= step;
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}
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TN(250);
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printf("\tHalf stroke:\t");
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b0 = sectorcount / 4;
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b1 = b0 + sectorcount / 2;
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T0();
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for (i = 0; i < 125; i++) {
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rdsect(fd, b0, sectorsize);
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b0 += step;
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rdsect(fd, b1, sectorsize);
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b1 += step;
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}
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TN(250);
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printf("\tQuarter stroke:\t");
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b0 = sectorcount / 4;
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b1 = b0 + sectorcount / 4;
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T0();
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for (i = 0; i < 250; i++) {
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rdsect(fd, b0, sectorsize);
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b0 += step;
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rdsect(fd, b1, sectorsize);
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b1 += step;
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}
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TN(500);
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printf("\tShort forward:\t");
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b0 = sectorcount / 2;
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T0();
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for (i = 0; i < 400; i++) {
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rdsect(fd, b0, sectorsize);
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b0 += step;
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}
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TN(400);
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printf("\tShort backward:\t");
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b0 = sectorcount / 2;
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T0();
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for (i = 0; i < 400; i++) {
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rdsect(fd, b0, sectorsize);
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b0 -= step;
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}
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TN(400);
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printf("\tSeq outer:\t");
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b0 = 0;
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T0();
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for (i = 0; i < 2048; i++) {
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rdsect(fd, b0, sectorsize);
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b0++;
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}
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TN(2048);
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printf("\tSeq inner:\t");
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b0 = sectorcount - 2048;
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T0();
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for (i = 0; i < 2048; i++) {
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rdsect(fd, b0, sectorsize);
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b0++;
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}
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TN(2048);
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printf("\nTransfer rates:\n");
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printf("\toutside: ");
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rdsect(fd, 0, sectorsize);
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T0();
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for (i = 0; i < bulk; i++) {
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rdmega(fd);
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}
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TR(bulk * 1024);
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printf("\tmiddle: ");
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b0 = sectorcount / 2 - bulk * (1024*1024 / sectorsize) / 2 - 1;
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rdsect(fd, b0, sectorsize);
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T0();
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for (i = 0; i < bulk; i++) {
|
|
rdmega(fd);
|
|
}
|
|
TR(bulk * 1024);
|
|
|
|
printf("\tinside: ");
|
|
b0 = sectorcount - bulk * (1024*1024 / sectorsize) - 1;
|
|
rdsect(fd, b0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < bulk; i++) {
|
|
rdmega(fd);
|
|
}
|
|
TR(bulk * 1024);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
static void
|
|
commandtime(int fd, off_t mediasize, u_int sectorsize)
|
|
{
|
|
double dtmega, dtsector;
|
|
int i;
|
|
|
|
printf("I/O command overhead:\n");
|
|
i = mediasize;
|
|
rdsect(fd, 0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < 10; i++)
|
|
rdmega(fd);
|
|
dtmega = delta_t();
|
|
|
|
printf("\ttime to read 10MB block %10.6f sec\t= %8.3f msec/sector\n",
|
|
dtmega, dtmega*100/2048);
|
|
|
|
rdsect(fd, 0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < 20480; i++)
|
|
rdsect(fd, 0, sectorsize);
|
|
dtsector = delta_t();
|
|
|
|
printf("\ttime to read 20480 sectors %10.6f sec\t= %8.3f msec/sector\n",
|
|
dtsector, dtsector*100/2048);
|
|
printf("\tcalculated command overhead\t\t\t= %8.3f msec/sector\n",
|
|
(dtsector - dtmega)*100/2048);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
static void
|
|
iops(int fd, off_t mediasize, u_int sectorsize)
|
|
{
|
|
struct aiocb aios[NAIO], *aiop;
|
|
ssize_t ret;
|
|
off_t sectorcount;
|
|
int error, i, queued, completed;
|
|
|
|
sectorcount = mediasize / sectorsize;
|
|
|
|
for (i = 0; i < NAIO; i++) {
|
|
aiop = &(aios[i]);
|
|
bzero(aiop, sizeof(*aiop));
|
|
aiop->aio_buf = malloc(sectorsize);
|
|
if (aiop->aio_buf == NULL)
|
|
err(1, "malloc");
|
|
}
|
|
|
|
T0();
|
|
for (i = 0; i < NAIO; i++) {
|
|
aiop = &(aios[i]);
|
|
|
|
aiop->aio_fildes = fd;
|
|
aiop->aio_offset = (random() % (sectorcount)) * sectorsize;
|
|
aiop->aio_nbytes = sectorsize;
|
|
|
|
error = aio_read(aiop);
|
|
if (error != 0)
|
|
err(1, "aio_read");
|
|
}
|
|
|
|
queued = i;
|
|
completed = 0;
|
|
|
|
for (;;) {
|
|
ret = aio_waitcomplete(&aiop, NULL);
|
|
if (ret < 0)
|
|
err(1, "aio_waitcomplete");
|
|
if (ret != (ssize_t)sectorsize)
|
|
errx(1, "short read");
|
|
|
|
completed++;
|
|
|
|
if (delta_t() < 3.0) {
|
|
aiop->aio_fildes = fd;
|
|
aiop->aio_offset = (random() % (sectorcount)) * sectorsize;
|
|
aiop->aio_nbytes = sectorsize;
|
|
|
|
error = aio_read(aiop);
|
|
if (error != 0)
|
|
err(1, "aio_read");
|
|
|
|
queued++;
|
|
} else if (completed == queued) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
TI(completed);
|
|
}
|
|
|
|
static void
|
|
iopsbench(int fd, off_t mediasize, u_int sectorsize)
|
|
{
|
|
printf("Asynchronous random reads:\n");
|
|
|
|
printf("\tsectorsize: ");
|
|
iops(fd, mediasize, sectorsize);
|
|
|
|
if (sectorsize != 4096) {
|
|
printf("\t4 kbytes: ");
|
|
iops(fd, mediasize, 4096);
|
|
}
|
|
|
|
printf("\t32 kbytes: ");
|
|
iops(fd, mediasize, 32 * 1024);
|
|
|
|
printf("\t128 kbytes: ");
|
|
iops(fd, mediasize, 128 * 1024);
|
|
|
|
printf("\t1024 kbytes: ");
|
|
iops(fd, mediasize, 1024 * 1024);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
#define MAXIO (128*1024)
|
|
#define MAXIOS (MAXTX / MAXIO)
|
|
|
|
static void
|
|
parwrite(int fd, size_t size, off_t off)
|
|
{
|
|
struct aiocb aios[MAXIOS];
|
|
off_t o;
|
|
int n, error;
|
|
struct aiocb *aiop;
|
|
|
|
// if size > MAXIO, use AIO to write n - 1 pieces in parallel
|
|
for (n = 0, o = 0; size > MAXIO; n++, size -= MAXIO, o += MAXIO) {
|
|
aiop = &aios[n];
|
|
bzero(aiop, sizeof(*aiop));
|
|
aiop->aio_buf = &buf[o];
|
|
aiop->aio_fildes = fd;
|
|
aiop->aio_offset = off + o;
|
|
aiop->aio_nbytes = MAXIO;
|
|
error = aio_write(aiop);
|
|
if (error != 0)
|
|
err(EX_IOERR, "AIO write submit error");
|
|
}
|
|
// Use synchronous writes for the runt of size <= MAXIO
|
|
error = pwrite(fd, &buf[o], size, off + o);
|
|
if (error < 0)
|
|
err(EX_IOERR, "Sync write error");
|
|
for (; n > 0; n--) {
|
|
error = aio_waitcomplete(&aiop, NULL);
|
|
if (error < 0)
|
|
err(EX_IOERR, "AIO write wait error");
|
|
}
|
|
}
|
|
|
|
static void
|
|
slogbench(int fd, int isreg, off_t mediasize, u_int sectorsize)
|
|
{
|
|
off_t off;
|
|
u_int size;
|
|
int error, n, N, nowritecache = 0;
|
|
|
|
printf("Synchronous random writes:\n");
|
|
for (size = sectorsize; size <= MAXTX; size *= 2) {
|
|
printf("\t%4.4g kbytes: ", (double)size / 1024);
|
|
N = 0;
|
|
T0();
|
|
do {
|
|
for (n = 0; n < 250; n++) {
|
|
off = random() % (mediasize / size);
|
|
parwrite(fd, size, off * size);
|
|
if (nowritecache)
|
|
continue;
|
|
if (isreg)
|
|
error = fsync(fd);
|
|
else
|
|
error = ioctl(fd, DIOCGFLUSH);
|
|
if (error < 0) {
|
|
if (errno == ENOTSUP)
|
|
nowritecache = 1;
|
|
else
|
|
err(EX_IOERR, "Flush error");
|
|
}
|
|
}
|
|
N += 250;
|
|
} while (delta_t() < 1.0);
|
|
TS(size, N);
|
|
}
|
|
}
|
|
|
|
static int
|
|
zonecheck(int fd, uint32_t *zone_mode, char *zone_str, size_t zone_str_len)
|
|
{
|
|
struct disk_zone_args zone_args;
|
|
int error;
|
|
|
|
bzero(&zone_args, sizeof(zone_args));
|
|
|
|
zone_args.zone_cmd = DISK_ZONE_GET_PARAMS;
|
|
error = ioctl(fd, DIOCZONECMD, &zone_args);
|
|
|
|
if (error == 0) {
|
|
*zone_mode = zone_args.zone_params.disk_params.zone_mode;
|
|
|
|
switch (*zone_mode) {
|
|
case DISK_ZONE_MODE_NONE:
|
|
snprintf(zone_str, zone_str_len, "Not_Zoned");
|
|
break;
|
|
case DISK_ZONE_MODE_HOST_AWARE:
|
|
snprintf(zone_str, zone_str_len, "Host_Aware");
|
|
break;
|
|
case DISK_ZONE_MODE_DRIVE_MANAGED:
|
|
snprintf(zone_str, zone_str_len, "Drive_Managed");
|
|
break;
|
|
case DISK_ZONE_MODE_HOST_MANAGED:
|
|
snprintf(zone_str, zone_str_len, "Host_Managed");
|
|
break;
|
|
default:
|
|
snprintf(zone_str, zone_str_len, "Unknown_zone_mode_%u",
|
|
*zone_mode);
|
|
break;
|
|
}
|
|
}
|
|
return (error);
|
|
}
|