1*8a272653SPeter Holm#!/bin/sh 2*8a272653SPeter Holm 3*8a272653SPeter Holm# 4*8a272653SPeter Holm# Copyright (c) 2018 Dell EMC Isilon 5*8a272653SPeter Holm# All rights reserved. 6*8a272653SPeter Holm# 7*8a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 8*8a272653SPeter Holm# modification, are permitted provided that the following conditions 9*8a272653SPeter Holm# are met: 10*8a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 11*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 12*8a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 13*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 14*8a272653SPeter Holm# documentation and/or other materials provided with the distribution. 15*8a272653SPeter Holm# 16*8a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*8a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*8a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*8a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*8a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*8a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*8a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*8a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*8a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*8a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*8a272653SPeter Holm# SUCH DAMAGE. 27*8a272653SPeter Holm# 28*8a272653SPeter Holm 29*8a272653SPeter Holm# Test OOM killing. 30*8a272653SPeter Holm 31*8a272653SPeter Holm# sort stuck in "pfault" seen. 32*8a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/oom2.txt 33*8a272653SPeter Holm 34*8a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35*8a272653SPeter Holm[ `sysctl -n vm.swap_total` -gt 0 ] && { swapoff -a; off=1; } 36*8a272653SPeter Holm 37*8a272653SPeter Holm[ `sysctl -n hw.physmem` -gt $((32 * 1024 * 1024 * 1024)) ] && 38*8a272653SPeter Holm echo "RAM should be capped to no more than 32GB" 39*8a272653SPeter Holmn=`sysctl -n hw.ncpu` 40*8a272653SPeter Holmn=`jot $n` 41*8a272653SPeter Holmstart=`date +%s` 42*8a272653SPeter Holmwhile [ $((`date +%s` - $start)) -lt 300 ]; do 43*8a272653SPeter Holm for i in $n; do 44*8a272653SPeter Holm sort < /dev/zero > /dev/null 2>&1 & 45*8a272653SPeter Holm done 46*8a272653SPeter Holm wait 47*8a272653SPeter Holmdone 48*8a272653SPeter Holm[ $off ] && swapon -a 49*8a272653SPeter Holmexit 0 50