50 lines
1.8 KiB
Bash
Executable File
50 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2018 Dell EMC Isilon
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Test OOM killing.
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# sort stuck in "pfault" seen.
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# https://people.freebsd.org/~pho/stress/log/oom2.txt
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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[ `sysctl -n vm.swap_total` -gt 0 ] && { swapoff -a; off=1; }
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[ `sysctl -n hw.physmem` -gt $((32 * 1024 * 1024 * 1024)) ] &&
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echo "RAM should be capped to no more than 32GB"
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n=`sysctl -n hw.ncpu`
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n=`jot $n`
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start=`date +%s`
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while [ $((`date +%s` - $start)) -lt 300 ]; do
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for i in $n; do
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sort < /dev/zero > /dev/null 2>&1 &
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done
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wait
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done
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[ $off ] && swapon -a
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exit 0
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