svn commit: r358668 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Thu Mar  5 09:20:32 2020
New Revision: 358668
URL: https://svnweb.freebsd.org/changeset/base/358668

Log:
  Added an old NUMA test scenario.

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

Added: user/pho/stress2/misc/numa.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/numa.sh	Thu Mar  5 09:20:32 2020	(r358668)
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2018 Dell EMC Isilon
+#
+# 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.
+#
+# $FreeBSD$
+
+# Test scenario: Last memory domain significantly smaller than the others.
+# https://people.freebsd.org/~pho/stress/log/numa.txt
+# Test scenario description by markj@
+
+[ `sysctl -n vm.ndomains` -eq 1 ] && exit 0
+
+doms=`sysctl -n vm.ndomains`
+phys=`sysctl -n hw.physmem` # clamped size
+real=`sysctl -n hw.realmem` # HW size
+
+goal=$((real - (real / doms) + 2 * 1024 * 1024 * 1024))
+mb=$((goal / 1024 / 1024))
+[ $phys -gt $goal ] &&
+    { echo "hw.physmem must be set to ${mb}M for this test."; exit 0; }
+
+../misc/sort.sh
+exit