freebsd-dev/tools/test/stress2/misc/procfs.sh
Peter Holm 8a272653d9 stress2: Initial import
Discussed with:	 kib
2021-03-03 15:11:40 +01:00

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#!/bin/sh
#
# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
# 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.
#
# 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.
#
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
mounts=15 # Number of parallel scripts
mdstart=$mdstart # Use md unit numbers from this point
if [ $# -eq 0 ]; then
for i in `jot $mounts`; do
m=$(( i + mdstart - 1 ))
[ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m
mount | grep "$mntpoint" | grep -q md$m && umount ${mntpoint}$m
done
# start the parallel tests
touch /tmp/$0
for i in `jot $mounts`; do
m=$(( i + mdstart - 1 ))
./$0 $m &
./$0 find $m > /dev/null 2>&1 &
done
wait
else
if [ $1 = find ]; then
while [ -r /tmp/$0 ]; do
ls -lR ${mntpoint}*
done
else
# The test: Parallel mount and unmounts
for i in `jot 128`; do
m=$1
mount -t procfs proc ${mntpoint}$m
while mount | grep -qw $mntpoint$m; do
opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f")
umount $opt ${mntpoint}$m > /dev/null 2>&1
done
done
rm -f /tmp/$0
fi
fi