svn commit: r333582 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Sun May 13 13:15:34 2018
New Revision: 333582
URL: https://svnweb.freebsd.org/changeset/base/333582

Log:
  Added a scenario which triggers threads stuck in pmc-sx.
  
  Sponsored by:	Dell EMC Isilon

Added:
  user/pho/stress2/misc/pmc2.sh   (contents, props changed)

Added: user/pho/stress2/misc/pmc2.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/pmc2.sh	Sun May 13 13:15:34 2018	(r333582)
@@ -0,0 +1,50 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2017 Dell EMC Isilon
+# 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.
+#
+# $FreeBSD$
+#
+
+# Page fault seen:
+# https://people.freebsd.org/~pho/stress/log/pmc2.txt
+
+# https://people.freebsd.org/~pho/stress/log/mmacy004.txt
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+kldstat -v | grep -q hwpmc  || { kldload hwpmc; loaded=1; }
+
+../misc/churn.sh &
+pid=$!
+while ! pgrep -q churn; do sleep .5; done
+pmcstat -P instructions -t churn -O /tmp/pmc2.log
+wait $pid
+rm /tmp/pmc2.log
+[ $loaded ] && kldunload hwpmc
+
+exit 0