304 lines
6.8 KiB
C
304 lines
6.8 KiB
C
/*-
|
|
* Copyright (c) 2003 Poul-Henning Kamp
|
|
* 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.
|
|
* 3. The names of the authors may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <paths.h>
|
|
#include <err.h>
|
|
#include <sys/disk.h>
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr, "Usage: diskinfo [-tv]\n");
|
|
exit (1);
|
|
}
|
|
|
|
static int opt_t, opt_v;
|
|
|
|
static void speeddisk(const char *name, int fd, off_t mediasize, u_int sectorsize);
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int i, ch, fd, error;
|
|
char buf[BUFSIZ];
|
|
off_t mediasize;
|
|
u_int sectorsize, fwsectors, fwheads;
|
|
|
|
while ((ch = getopt(argc, argv, "tv")) != -1) {
|
|
switch (ch) {
|
|
case 't':
|
|
opt_t = 1;
|
|
opt_v = 1;
|
|
break;
|
|
case 'v':
|
|
opt_v = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
fd = open(argv[i], O_RDONLY);
|
|
if (fd < 0 && errno == ENOENT && *argv[i] != '/') {
|
|
sprintf(buf, "%s%s", _PATH_DEV, argv[i]);
|
|
fd = open(buf, O_RDONLY);
|
|
}
|
|
if (fd < 0)
|
|
err(1, argv[i]);
|
|
error = ioctl(fd, DIOCGMEDIASIZE, &mediasize);
|
|
if (error)
|
|
err(1, "%s: ioctl(DIOCGMEDIASIZE) failed, probably not a disk.", argv[i]);
|
|
error = ioctl(fd, DIOCGSECTORSIZE, §orsize);
|
|
if (error)
|
|
err(1, "%s: DIOCGSECTORSIZE failed, probably not a disk.", argv[i]);
|
|
error = ioctl(fd, DIOCGFWSECTORS, &fwsectors);
|
|
if (error)
|
|
fwsectors = 0;
|
|
error = ioctl(fd, DIOCGFWHEADS, &fwheads);
|
|
if (error)
|
|
fwheads = 0;
|
|
if (!opt_v) {
|
|
printf("%s", argv[i]);
|
|
printf("\t%u", sectorsize);
|
|
printf("\t%jd", (intmax_t)mediasize);
|
|
printf("\t%jd", (intmax_t)mediasize/sectorsize);
|
|
if (fwsectors != 0 && fwheads != 0) {
|
|
printf("\t%jd", (intmax_t)mediasize /
|
|
(fwsectors * fwheads * sectorsize));
|
|
printf("\t%u", fwheads);
|
|
printf("\t%u", fwsectors);
|
|
}
|
|
} else {
|
|
printf("%s\n", argv[i]);
|
|
printf("\t%-12u\t# sectorsize\n", sectorsize);
|
|
printf("\t%-12jd\t# mediasize in bytes\n",
|
|
(intmax_t)mediasize);
|
|
printf("\t%-12jd\t# mediasize in sectors\n",
|
|
(intmax_t)mediasize/sectorsize);
|
|
if (fwsectors != 0 && fwheads != 0) {
|
|
printf("\t%-12jd\t# Cylinders according to firmware.\n", (intmax_t)mediasize /
|
|
(fwsectors * fwheads * sectorsize));
|
|
printf("\t%-12u\t# Heads according to firmware.\n", fwheads);
|
|
printf("\t%-12u\t# Sectors according to firmware.\n", fwsectors);
|
|
}
|
|
}
|
|
printf("\n");
|
|
if (opt_t)
|
|
speeddisk(argv[i], fd, mediasize, sectorsize);
|
|
close(fd);
|
|
}
|
|
exit (0);
|
|
}
|
|
|
|
|
|
static char sector[65536];
|
|
static char mega[1024 * 1024];
|
|
|
|
static void
|
|
rdsect(int fd, u_int blockno, u_int sectorsize)
|
|
{
|
|
int error;
|
|
|
|
lseek(fd, (off_t)blockno * sectorsize, SEEK_SET);
|
|
error = read(fd, sector, sectorsize);
|
|
if (error != sectorsize)
|
|
err(1, "read error or disk too small for test.");
|
|
}
|
|
|
|
static void
|
|
rdmega(int fd)
|
|
{
|
|
int error;
|
|
|
|
error = read(fd, mega, sizeof(mega));
|
|
if (error != sizeof(mega))
|
|
err(1, "read error or disk too small for test.");
|
|
}
|
|
|
|
static struct timeval tv1, tv2;
|
|
|
|
static void
|
|
T0(void)
|
|
{
|
|
|
|
fflush(stdout);
|
|
sync();
|
|
sleep(1);
|
|
sync();
|
|
sync();
|
|
gettimeofday(&tv1, NULL);
|
|
}
|
|
|
|
static void
|
|
TN(int count)
|
|
{
|
|
double dt;
|
|
|
|
gettimeofday(&tv2, NULL);
|
|
dt = (tv2.tv_usec - tv1.tv_usec) / 1e6;
|
|
dt += (tv2.tv_sec - tv1.tv_sec);
|
|
printf("%5d iter in %10.6f sec = %8.3f msec\n",
|
|
count, dt, dt * 1000.0 / count);
|
|
}
|
|
|
|
static void
|
|
TR(double count)
|
|
{
|
|
double dt;
|
|
|
|
gettimeofday(&tv2, NULL);
|
|
dt = (tv2.tv_usec - tv1.tv_usec) / 1e6;
|
|
dt += (tv2.tv_sec - tv1.tv_sec);
|
|
printf("%8.0f kbytes in %10.6f sec = %8.0f kbytes/sec\n",
|
|
count, dt, count / dt);
|
|
}
|
|
|
|
static void
|
|
speeddisk(const char *name, int fd, off_t mediasize, u_int sectorsize)
|
|
{
|
|
int error, i;
|
|
uint b0, b1, sectorcount;
|
|
|
|
off_t size;
|
|
sectorcount = mediasize / sectorsize;
|
|
|
|
printf("Seek times:\n");
|
|
printf("\tFull stroke:\t");
|
|
b0 = 0;
|
|
b1 = sectorcount - 1 - 16384;
|
|
T0();
|
|
for (i = 0; i < 125; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0 += 16384;
|
|
rdsect(fd, b1, sectorsize);
|
|
b1 -= 16384;
|
|
}
|
|
TN(250);
|
|
|
|
printf("\tHalf stroke:\t");
|
|
b0 = sectorcount / 4;
|
|
b1 = b0 + sectorcount / 2;
|
|
T0();
|
|
for (i = 0; i < 125; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0 += 16384;
|
|
rdsect(fd, b1, sectorsize);
|
|
b1 += 16384;
|
|
}
|
|
TN(250);
|
|
printf("\tQuarter stroke:\t");
|
|
b0 = sectorcount / 4;
|
|
b1 = b0 + sectorcount / 4;
|
|
T0();
|
|
for (i = 0; i < 250; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0 += 16384;
|
|
rdsect(fd, b1, sectorsize);
|
|
b1 += 16384;
|
|
}
|
|
TN(500);
|
|
|
|
printf("\tShort forward:\t");
|
|
b0 = sectorcount / 2;
|
|
T0();
|
|
for (i = 0; i < 400; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0 += 16384;
|
|
}
|
|
TN(400);
|
|
|
|
printf("\tShort backward:\t");
|
|
b0 = sectorcount / 2;
|
|
T0();
|
|
for (i = 0; i < 400; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0 -= 16384;
|
|
}
|
|
TN(400);
|
|
|
|
printf("\tSeq outer:\t");
|
|
b0 = 0;
|
|
T0();
|
|
for (i = 0; i < 2048; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0++;
|
|
}
|
|
TN(2048);
|
|
|
|
printf("\tSeq inner:\t");
|
|
b0 = sectorcount - 2048 - 1;
|
|
T0();
|
|
for (i = 0; i < 2048; i++) {
|
|
rdsect(fd, b0, sectorsize);
|
|
b0++;
|
|
}
|
|
TN(2048);
|
|
|
|
printf("Transfer rates:\n");
|
|
printf("\toutside: ");
|
|
rdsect(fd, 0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < 100; i++) {
|
|
rdmega(fd);
|
|
}
|
|
TR(100 * 1024);
|
|
|
|
printf("\tmiddle: ");
|
|
b0 = sectorcount / 2;
|
|
rdsect(fd, b0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < 100; i++) {
|
|
rdmega(fd);
|
|
}
|
|
TR(100 * 1024);
|
|
|
|
printf("\tinside: ");
|
|
b0 = sectorcount - 100 * (1024*1024 / sectorsize) - 1;;
|
|
rdsect(fd, b0, sectorsize);
|
|
T0();
|
|
for (i = 0; i < 100; i++) {
|
|
rdmega(fd);
|
|
}
|
|
TR(100 * 1024);
|
|
|
|
printf("\n");
|
|
|
|
return;
|
|
}
|