1#!/bin/sh 2 3# 4# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# $FreeBSD$ 29# 30 31# Stress test by performing parallel calls to mount and umount. Alternate 32# between forced and non-forced unmounts 33 34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35 36. ../default.cfg 37 38mounts=15 # Number of parallel scripts 39 40if [ $# -eq 0 ]; then 41 for i in `jot $mounts`; do 42 [ ! -d ${mntpoint}$i ] && mkdir ${mntpoint}$i 43 mount | grep "$mntpoint" | grep -q ${mntpoint}$i && umount ${mntpoint}$i 44 done 45 46 # start the parallel tests 47 for i in `jot $mounts`; do 48 ./$0 $i & 49 done 50 51 52 for i in `jot $mounts`; do 53 wait 54 done 55 56 for i in `jot $mounts`; do 57 umount ${mntpoint}$i > /dev/null 2>&1 58 done 59 60else 61 # The test: Parallel mount and unmounts 62 for i in `jot 1024`; do 63 m=$1 64 mount_nullfs /tmp ${mntpoint}$m > /dev/null 2>&1 65 opt=`[ $(( m % 2 )) -eq 0 ] && echo -f` 66 while mount | grep "$mntpoint" | grep -q ${mntpoint}$m; do 67 umount $opt ${mntpoint}$m > /dev/null 2>&1 68 done 69 done 70fi 71