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132 lines
3.5 KiB
Bash
Executable file
132 lines
3.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2015 EMC Corp.
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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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#
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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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# tar x simulator
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# Create 100.000 files of size 64k; a total of 6GB
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. ../default.cfg
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/tar.c
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mycc -o tar -Wall -Wextra -O0 -g tar.c || exit 1
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rm -f tar.c
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cd $odir
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export LANG=C
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wdir=`dirname $diskimage`
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rm -rf $wdir/tar.tmp
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[ `df -k $wdir | tail -1 | awk '{print $4}'` -lt \
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$((6 * 1024 * 1024)) ] &&
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echo "Not enough disk space on $wdir." && exit 0
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for i in `jot $(sysctl -n hw.ncpu)`; do
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/tmp/tar $wdir | ministat -n | tail -2 &
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sleep 3
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done
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wait
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rm -rf /tmp/tar $wdir/tar.tmp
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exit 0
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EOF
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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#define RUNTIME 1200
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char buf[64*1024];
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int
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main(int argc, char *argv[])
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{
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struct timeval start, stop, diff;
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time_t stime;
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uint64_t mx, usec;
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int fd, i, j, k;
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char path[128];
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if (argc != 2)
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errx(1, "Usage: %s <path>", argv[0]);
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mx = 0;
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stime = time(NULL);
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snprintf(path, sizeof(path), "%s/tar.tmp", argv[1]);
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mkdir(path, 0777);
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for (i = 0; i < 100; i++) {
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snprintf(path, sizeof(path), "%s/tar.tmp/d%d", argv[1], i);
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if (mkdir(path, 0777) == -1)
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if (errno != EEXIST)
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err(1, "mkdir(%s)", path);
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for (j = 0; j < 100; j++) {
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snprintf(path, sizeof(path), "%s/tar.tmp/d%d/d%d",
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argv[1], i, j);
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if (mkdir(path, 0777) == -1)
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if (errno != EEXIST)
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err(1, "mkdir(%s)", path);
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}
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}
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for (i = 0; i < 100; i++) {
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for (j = 0; j < 100; j++) {
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for (k = 0; k < 10; k++) {
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snprintf(path, sizeof(path),
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"%s/tar.tmp/d%d/d%d/f%d", argv[1], i, j, k);
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gettimeofday(&start, NULL);
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unlink(path);
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if ((fd = open(path, O_RDWR | O_CREAT, 0644))
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== -1)
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err(1, "open(%s)", path);
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write(fd, buf, sizeof(buf));
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close(fd);
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gettimeofday(&stop, NULL);
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timersub(&stop, &start, &diff);
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usec = ((uint64_t)1000000 *
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diff.tv_sec + diff.tv_usec);
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if (usec > mx)
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mx = usec;
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fprintf(stdout, "%.3f %s\n",
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(double)usec / 1000000, path);
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}
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}
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if (time(NULL) - stime > RUNTIME) {
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fprintf(stderr, "Timed out at %s.\n", path);
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break;
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}
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}
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if (mx > 5000000) {
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// fprintf(stderr, "%.3f %s : FAIL\n", (double)mx / 1000000, path);
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return (1);
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} else
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return (0);
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}
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