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#!/bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2021 Peter Holm <pho@FreeBSD.org>
#
# 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.
#
# 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.
#
# O_CREAT / unlink() timing test with different FFS options.
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
[ `uname -m` = "i386" ] && exit 0 # very long runtime
. ../default.cfg
[ $# -eq 0 ] && half=1 # SU and SUJ workaround
first=1
export LANG=en_US.ISO8859-1
odir=`pwd`
dir=$mntpoint
cd /tmp
sed '1,/^EOF/d' < $odir/$0 > perf.c
mycc -o perf -Wall -Wextra perf.c || exit 1
rm -f perf.c
cd $odir
mount | grep -q "on $mntpoint " && umount $mntpoint
mdconfig -l | grep md$mdstart > /dev/null && mdconfig -d -u $mdstart
mdconfig -a -t swap -s 2g -u $mdstart
tst() {
local i j k s
s=0
cd $dir
inodes=`df -ik $mntpoint | tail -1 | \
awk '{printf "%d\n", $7}'`
# SU and SUJ tests fail with ENOSPC
[ $half ] &&
i=$((inodes / 4)) ||
i=$(((inodes - 500) / 2))
[ $first -eq 1 ] &&
printf "Using %'\''d inodes out of a total of %'\''d.\n" \
$((i * 2)) $inodes
first=0
for k in `jot 3`; do
pids=""
for j in `jot 2`; do
/tmp/perf $i &
pids="$pids $!"
done
for pid in $pids; do
wait $pid; r=$?
[ $r -ne 0 ] && s=$r
done
done
cd $odir
return $s
}
s=0
for i in "" "-U" "-j"; do
newfs $i /dev/md$mdstart > /dev/null 2>&1
mount /dev/md$mdstart $mntpoint
t1=`date +%s`
tst; r=$?
t2=$((`date +%s` - t1))
umount -f $mntpoint
t2=$((`date +%s` - t1))
[ $t2 -eq 0 ] && t2=1
[ -z "$base" ] && base=$t2
pct=$(((t2 - base) * 100 / base))
printf '%3d seconds elapsed for newfs option "%2s" (%+4d%%)\n' \
$t2 "$i" $pct
[ $pct -gt 10 ] && s=111
[ $s -eq 0 -a $r -ne 0 ] && s=$r
done
rm -f /tmp/perf
mdconfig -d -u $mdstart
exit $s
EOF
#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int
main(int argc __unused, char **argv)
{
pid_t pid;
int64_t size;
int e, fd, i, j;
char file[128];
size = atol(argv[1]);
e = 0;
pid = getpid();
for (j = 0; j < size; j++) {
sprintf(file,"p%05d.%05d", pid, j);
if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC,
DEFFILEMODE)) == -1) {
e = errno;
if (errno != EINTR) {
warn("open(%s)", file);
printf("break out at %d, errno %d\n", j,
errno);
break;
}
}
close(fd);
}
for (i = --j; i >= 0; i--) {
sprintf(file,"p%05d.%05d", pid, i);
if (unlink(file) == -1)
err(3, "unlink(%s)", file);
}
return (e);
}
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