Date: Tue, 14 Feb 2012 04:19:00 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r231634 - head/tools/test/hwpmc Message-ID: <201202140419.q1E4J0Hx077286@svn.freebsd.org>
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Author: gnn Date: Tue Feb 14 04:18:59 2012 New Revision: 231634 URL: http://svn.freebsd.org/changeset/base/231634 Log: Add a rudimentary test to run through all the available counters on a system and then execute a program with pmcstat in counting mode. The program will verify that all counters fire and that the code neither panics the system nor locks it up. This should be considered a first pass conformance test for new sets of counters being added to hwpmc(4). Added: head/tools/test/hwpmc/ head/tools/test/hwpmc/pmctest.py (contents, props changed) Added: head/tools/test/hwpmc/pmctest.py ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/tools/test/hwpmc/pmctest.py Tue Feb 14 04:18:59 2012 (r231634) @@ -0,0 +1,79 @@ +#!/usr/bin/env python +# Copyright (c) 2012, Neville-Neil Consulting +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# +# 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. +# +# Neither the name of Neville-Neil Consulting nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +# OWNER 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. +# +# Author: George V. Neville-Neil +# +# $FreeBSD$ + +# Description: A program to run a simple program against every available +# pmc counter present in a system. +# +# To use: +# +# pmctest.py ls > /dev/null +# +# This should result in ls being run with every available counter +# and the system should neither lock up nor panic. + +import sys +import subprocess +from subprocess import PIPE + +# A list of strings that are not really counters, just +# name tags that are output by pmccontrol -L +notcounter = ["IAF", "IAP", "TSC", "UNC", "UCF"] + +def main(): + + if (len(sys.argv) != 2): + print ("usage: pmctest.py program") + + program = sys.argv[1] + + p = subprocess.Popen(["pmccontrol", "-L"], stdout=PIPE) + counters = p.communicate()[0] + + if len(counters) <= 0: + print "no counters found" + sys.exit() + + for counter in counters.split(): + if counter in notcounter: + continue + p = subprocess.Popen(["pmcstat", "-p", counter, program], stdout=PIPE) + result = p.communicate()[0] + print result + +# The canonical way to make a python module into a script. +# Remove if unnecessary. + +if __name__ == "__main__": + main()
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