4 # Copyright (c) 2017 Dell EMC Isilon
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
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
30 # https://people.freebsd.org/~pho/stress/log/mark013.txt
33 # watchdogd: https://people.freebsd.org/~pho/stress/log/kostik1245.txt
37 outputfile=$RUNDIR/dd.outputfile
38 (cd ../testcases/swap; ./swap -t 30m -i 20) > /dev/null 2>&1 &
39 trap "rm -f ${outputfile}*" EXIT INT
41 NCPU=`sysctl -n hw.ncpu`
45 while [ $((`date '+%s'` - start)) -lt 720 ]; do
48 dd if=/dev/zero of=${outputfile}$i bs=1m count=$size &
54 [ $s -ne 0 ] && break 2
58 [ $N -gt $((NCPU * 2)) ] && break
61 while pgrep -q swap; do