Added rawspeed.
This commit is contained in:
Philip Homburg
parent
d63e366944
commit
69bd34a076
@ -149,6 +149,7 @@ ALL = \
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pwdauth \
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rarpd \
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rcp \
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rawspeed \
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rdate \
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readall \
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rev \
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@ -650,6 +651,10 @@ rcp: rcp.c
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$(CCLD) -o $@ rcp.c
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@install -S 8kw $@
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rawspeed: rawspeed.c
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$(CCLD) -o $@ rawspeed.c
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@install -S 512k $@
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rdate: rdate.c
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$(CCLD) -o $@ rdate.c
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@install -S 8kw $@
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@ -1026,6 +1031,7 @@ install: \
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/usr/lib/pwdauth \
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/usr/bin/rarpd \
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/usr/bin/rcp \
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/usr/bin/rawspeed \
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/usr/bin/rdate \
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/usr/bin/readall \
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/usr/bin/readfs \
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@ -1472,6 +1478,9 @@ install: \
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/usr/bin/rcp: rcp
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install -cs -o bin $? $@
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/usr/bin/rawspeed: rawspeed
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install -cs -o bin $? $@
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/usr/bin/rdate: rdate
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install -cs -o bin $? $@
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273
commands/simple/rawspeed.c
Normal file
273
commands/simple/rawspeed.c
Normal file
@ -0,0 +1,273 @@
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/* rawspeed 1.15 - Measure speed of a device. Author: Kees J. Bot
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* 26 Apr 1992
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*/
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#define nil 0
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <signal.h>
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#include <string.h>
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#include <time.h>
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#if !__minix
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#include <sys/time.h>
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#endif
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#include <fcntl.h>
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#include <limits.h>
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#include <sys/stat.h>
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#define SECTOR_SIZE 512
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#define BLK_MAX_SECTORS (sizeof(int) == 2 ? 32 : 64)
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#define CHR_MAX_SECTORS (sizeof(int) == 2 ? 63 : 512)
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#define ABS_MAX_SECTORS (INT_MAX / SECTOR_SIZE)
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#define USEC (!__minix || __minix_vmd)
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/* Any good random number generator around? */
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#if __minix_vmd || __linux
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#define rand random
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#define srand srandom
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#endif
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#if __sun && __svr4__
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#define rand lrand48
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#define srand srand48
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#endif
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void report(const char *label)
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{
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fprintf(stderr, "rawspeed: %s: %s\n", label, strerror(errno));
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}
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void fatal(const char *label)
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{
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report(label);
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exit(1);
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}
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void usage(void)
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{
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fprintf(stderr,
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"Usage: rawspeed [-u unit] [-m max] [-t seconds] [-c] [-r limit] device\n");
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fprintf(stderr,
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" -u unit = best sector multiple (default 2)\n");
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fprintf(stderr,
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" -m max = read multiples of unit upto 'max' (default %d raw, %d file)\n",
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CHR_MAX_SECTORS, BLK_MAX_SECTORS);
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fprintf(stderr,
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" -t seconds = time to run test (default 10)\n");
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fprintf(stderr,
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" -c = cache test: rewind after each read or write of max size\n");
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fprintf(stderr,
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" -r limit = random seeks upto sector 'limit' before reading or writing\n");
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exit(1);
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}
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int done= 0;
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void timeout(int sig)
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{
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done= 1;
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}
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int main(int argc, char **argv)
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{
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int i, fd, n= 0, unit= -1, max= -1, cache= 0;
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int size, seconds= 10;
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long tenthsec;
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#if USEC
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struct timeval start_time, end_time;
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struct timezone dummy;
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#else
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time_t start_time;
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#endif
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off_t nbytes= 0, wbytes= 0, randlimit= 0;
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char *device, *chunk;
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struct stat st;
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off_t nseeks= 0;
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for (i= 1; i < argc && argv[i][0] == '-' && argv[i][1] != 0; i++) {
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char *opt;
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if (argv[i][1] == '-' && argv[i][2] == 0) { i++; break; }
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for (opt= argv[i]+1; *opt != 0; opt++) {
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switch (*opt) {
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case 'w':
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if (i == argc) usage();
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wbytes= atol(argv[++i]) * 1024;
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if (wbytes <= 0) usage();
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break;
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case 'm':
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if (i == argc) usage();
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max= atoi(argv[++i]);
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if (max <= 0 || max > ABS_MAX_SECTORS)
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usage();
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break;
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case 'u':
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if (i == argc) usage();
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unit= atoi(argv[++i]);
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if (unit <= 0 || unit > ABS_MAX_SECTORS)
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usage();
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break;
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case 't':
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if (i == argc) usage();
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seconds= atoi(argv[++i]);
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if (seconds <= 0) usage();
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break;
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case 'c':
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cache= 1;
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break;
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case 'r':
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if (i == argc) usage();
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randlimit= atol(argv[++i]);
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if (randlimit <= 0) usage();
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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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}
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if (i != argc - 1) usage();
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if (strcmp(argv[i], "-") == 0) {
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fd= wbytes == 0 ? 0 : 1;
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device= "";
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} else {
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device= argv[i];
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if ((fd= open(device,
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wbytes == 0 ? O_RDONLY : O_WRONLY | O_CREAT, 0666)) < 0)
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fatal(device);
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}
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if (max < 0) {
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if (fstat(fd, &st) >= 0 && S_ISCHR(st.st_mode))
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max= CHR_MAX_SECTORS;
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else
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max= BLK_MAX_SECTORS;
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}
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if (unit < 0) unit= max > 1 ? 2 : 1;
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unit*= max / unit;
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if (unit == 0) usage();
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size= unit * SECTOR_SIZE;
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randlimit/= unit;
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if ((chunk= malloc((size_t) size)) == nil) {
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fprintf(stderr, "rawspeed: can't grab %d bytes: %s\n",
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size, strerror(errno));
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exit(1);
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}
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/* Touch the pages to get real memory sending other processes to swap.
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*/
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memset((void *) chunk, 0, (size_t) size);
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/* Clean the cache. */
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sync();
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signal(SIGALRM, timeout);
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signal(SIGINT, timeout);
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#if USEC
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gettimeofday(&start_time, &dummy);
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if (randlimit != 0) srand((int) (start_time.tv_sec & INT_MAX));
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#else
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start_time= time((time_t *) nil);
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if (randlimit != 0) srand((int) (start_time & INT_MAX));
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#endif
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alarm(seconds);
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if (wbytes > 0) {
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while (!done && (n= write(fd, chunk, size)) > 0
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&& (nbytes+= n) < wbytes) {
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if (cache && lseek(fd, (off_t) 0, SEEK_SET) == -1)
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fatal(device);
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if (randlimit != 0) {
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if (lseek(fd, (off_t)
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(rand() % randlimit * size),
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SEEK_SET) == -1)
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fatal(device);
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nseeks++;
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}
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}
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sync();
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} else {
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while (!done && (n= read(fd, chunk, size)) > 0) {
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nbytes+= n;
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if (cache && lseek(fd, (off_t) 0, SEEK_SET) == -1)
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fatal(device);
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if (randlimit != 0) {
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if (lseek(fd, (off_t)
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(rand() % randlimit * size),
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SEEK_SET) == -1)
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fatal(device);
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nseeks++;
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}
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}
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}
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#if USEC
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gettimeofday(&end_time, &dummy);
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tenthsec= (end_time.tv_sec - start_time.tv_sec) * 10
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+ (end_time.tv_usec - start_time.tv_usec) / 100000;
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#else
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tenthsec= (time((time_t *) 0) - start_time) * 10;
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#endif
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if (n < 0 && errno == EINTR) n= 0;
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if (n < 0) report(device);
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if (nbytes > 0) {
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off_t kBpts;
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fprintf(stderr, "%ld kB / %d.%d s = ",
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(nbytes + 512) / 1024,
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tenthsec / 10, tenthsec % 10);
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if (tenthsec < 5)
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fprintf(stderr, "infinite\n");
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else {
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if (nbytes > LONG_MAX / 100) {
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seconds = (tenthsec + 5) / 10;
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kBpts= (nbytes + 512L * seconds)
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/ (1024L * seconds);
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fprintf(stderr, "%ld kB/s\n", kBpts);
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} else {
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kBpts= (100 * nbytes + 512L * tenthsec)
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/ (1024L * tenthsec);
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fprintf(stderr, "%ld.%ld kB/s\n",
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kBpts/10, kBpts%10);
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}
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}
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}
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if (randlimit != 0 && tenthsec >= 5) {
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int rpm, disc= 0;
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off_t tenthms;
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tenthms= (tenthsec * 1000 + nseeks/2) / nseeks;
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fprintf(stderr,
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"%ld seeks / %d.%d s = %ld seeks/s = %ld.%ld ms/seek\n",
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nseeks, tenthsec / 10, tenthsec % 10,
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(nseeks * 10 + tenthsec/2) / tenthsec,
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tenthms / 10, tenthms % 10);
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for (rpm= 3600; rpm <= 7200; rpm+= 1800) {
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int rotms = (10000L / 2 * 60 + rpm/2) / rpm;
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if (tenthms <= rotms) continue;
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if (!disc) {
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fprintf(stderr,
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"discarding av. rotational delay:\n ");
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disc= 1;
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} else {
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fprintf(stderr, ", ");
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}
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fprintf(stderr, "%ld.%ld ms (%d rpm)",
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(tenthms - rotms) / 10, (tenthms - rotms) % 10,
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rpm);
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}
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if (disc) fputc('\n', stdout);
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}
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return n < 0 ? 1 : 0;
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}
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