Date: Tue, 24 Apr 2018 07:03:24 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r332912 - user/pho/stress2/misc Message-ID: <201804240703.w3O73OVm026361@repo.freebsd.org>
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Author: pho Date: Tue Apr 24 07:03:23 2018 New Revision: 332912 URL: https://svnweb.freebsd.org/changeset/base/332912 Log: Added older sysctl kern.sched_fuzz test scenario. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/schedfuzz.sh (contents, props changed) Added: user/pho/stress2/misc/schedfuzz.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/schedfuzz.sh Tue Apr 24 07:03:23 2018 (r332912) @@ -0,0 +1,81 @@ +#!/bin/sh + +# +# Copyright (c) 2016 EMC Corp. +# 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. +# +# $FreeBSD$ +# + +# Sched fuzz test scenario. + +# "panic: sleeping thread" seen: +# https://people.freebsd.org/~pho/stress/log/schedfuzz.txt + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +sysctl kern.sched_fuzz.prof_on > /dev/null 2>&1 || exit 0 + +: ${pct1:=0.01} +: ${pct2:=0.1} +export pct1 pct2 + +seton() { + sysctl kern.sched_fuzz.sched_fuzz_scheduler="${pct1}%return(1)" + sysctl kern.sched_fuzz.sched_fuzz_sx_slock_delay="${pct1}%schedfuzz(82)" + sysctl kern.sched_fuzz.sched_fuzz_sx_xlock_delay="${pct1}%schedfuzz(82)" + sysctl kern.sched_fuzz.sched_fuzz_sx_slock_sleep="${pct1}%schedfuzz(82)" + sysctl kern.sched_fuzz.sched_fuzz_sx_xlock_sleep="${pct1}%schedfuzz(82)" + sysctl kern.sched_fuzz.sched_fuzz_mtx_spin_lock="${pct1}%schedfuzz(44)" + sysctl kern.sched_fuzz.sched_fuzz_mtx_spin_unlock="${pct1}%schedfuzz(44)" + sysctl kern.sched_fuzz.sched_fuzz_malloc="${pct1}%schedfuzz(62)" + sysctl kern.sched_fuzz.sched_fuzz_cv_wait="${pct2}%schedfuzz(100)" + sysctl kern.sched_fuzz.sched_fuzz_cv_timed_wait="${pct2}%schedfuzz(100)" + sysctl kern.sched_fuzz.sched_fuzz_cv_timed_wait_sig="${pct2}%schedfuzz(100)" + sysctl kern.sched_fuzz.sched_fuzz_mtx_lock="${pct1}%schedfuzz(22)" + sysctl kern.sched_fuzz.sched_fuzz_mtx_unlock="${pct1}%schedfuzz(22)" + sysctl kern.sched_fuzz.sched_fuzz_sleepq="${pct1}%schedfuzz(150)" + + sysctl kern.sched_fuzz.prof_on=1 +} + +setoff() { + sysctl kern.sched_fuzz.prof_on=0 +} + +if [ $# -eq 1 ]; then + case "$1" in + on) seton + ;; + off) setoff + ;; + *) echo "Usage: $0 [on|off]" + exit 1 + ;; + esac +else + seton + ./procfs.sh + setoff +fi
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