Date: Fri, 11 Jan 2013 13:58:53 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r245300 - user/pho/stress2/misc Message-ID: <201301111358.r0BDwrw2019069@svn.freebsd.org>
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Author: pho Date: Fri Jan 11 13:58:53 2013 New Revision: 245300 URL: http://svnweb.freebsd.org/changeset/base/245300 Log: Parallel mount and unmount of the same mount point. Added: user/pho/stress2/misc/parallelmount.sh (contents, props changed) Added: user/pho/stress2/misc/parallelmount.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/parallelmount.sh Fri Jan 11 13:58:53 2013 (r245300) @@ -0,0 +1,71 @@ +#!/bin/sh + +# +# Copyright (c) 2012 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. +# +# $FreeBSD$ +# + +# Parallel mount and unmount of the same mount point +# http://people.freebsd.org/~pho/stress/log/parallelumount3.txt + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +parallel=40 + +if [ $# -eq 0 ]; then + mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart + mdconfig -a -t swap -s 10m -u $mdstart || exit 1 + bsdlabel -w md$mdstart auto + newfs -U md${mdstart}$part > /dev/null + + # start the parallel tests + for i in `jot $parallel`; do + ./$0 $i & + done + + while kill -0 $! 2> /dev/null; do + for i in `jot 200`; do + find $mntpoint > /dev/null 2>&1 + done + done + + for i in `jot $parallel`; do + wait + done + + while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + done + mdconfig -d -u $mdstart +else + for i in `jot 1000`; do + mount /dev/md${mdstart}$part $mntpoint > /dev/null 2>&1 + umount $mntpoint > /dev/null 2>&1 + mount > /dev/null + done +fi
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