1#!/bin/sh 2 3# 4# Copyright (c) 2014 EMC Corp. 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 29# Variation of crossmp3.sh 30 31[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 32 33. ../default.cfg 34 35N=`sysctl -n hw.ncpu` 36[ $N -gt 32 ] && N=32 # Arbitrary cap 37usermem=`sysctl -n hw.usermem` 38[ `swapinfo | wc -l` -eq 1 ] && usermem=$((usermem/100*80)) 39size=$((usermem / 1024 / 1024 / N)) 40 41mounts=$N # Number of parallel scripts 42 43if [ $# -eq 0 ]; then 44 for i in `jot $mounts`; do 45 m=$(( i + mdstart - 1 )) 46 [ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m 47 mount | grep "${mntpoint}$m " | grep -q md$m && 48 umount ${mntpoint}$m 49 mdconfig -l | grep -q md$m && mdconfig -d -u $m 50 51 mdconfig -a -t swap -s ${size}m -u $m 52 newfs $newfs_flags md${m} > /dev/null 2>&1 53 done 54 55 # start the parallel tests 56 for i in `jot $mounts`; do 57 m=$(( i + mdstart - 1 )) 58 ./$0 $m & 59 ./$0 find & 60 done 61 62 wait 63 64 for i in `jot $mounts`; do 65 m=$(( i + mdstart - 1 )) 66 mdconfig -d -u $m 67 rm -f $D$m 68 done 69 exit 0 70else 71 touch /tmp/crossmp.continue 72 if [ $1 = find ]; then 73 while [ -f /tmp/crossmp.continue ]; do 74 find ${mntpoint}* -type f > /dev/null 2>&1 75 done 76 else 77 # The test: Parallel mount and unmount 78 i=0 79 m=$1 80 start=`date +%s` 81 while [ $((`date +%s`- start)) -lt 300 ]; do 82 mount /dev/md${m} ${mntpoint}$m 83 chmod 777 ${mntpoint}$m 84 l=`jot -r 1 65535` 85 dd if=/dev/zero of=$mntpoint/$i bs=$l count=100 \ 86 status=none 87 rm -f $mntpoint/$i 88 89 while mount | grep -q "on ${mntpoint}$m "; do 90 opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && 91 echo "-f") 92 umount $opt ${mntpoint}$m > /dev/null 2>&1 93 done 94 i=$((i + 1)) 95 done 96 rm -f /tmp/crossmp.continue 97 fi 98fi 99