pmctest.py revision 231634
1#!/usr/bin/env python 2# Copyright (c) 2012, Neville-Neil Consulting 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: 8# 9# Redistributions of source code must retain the above copyright notice, 10# this list of conditions and the following disclaimer. 11# 12# Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# Neither the name of Neville-Neil Consulting nor the names of its 17# contributors may be used to endorse or promote products derived from 18# this software without specific prior written permission. 19# 20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31# 32# Author: George V. Neville-Neil 33# 34# $FreeBSD: head/tools/test/hwpmc/pmctest.py 231634 2012-02-14 04:18:59Z gnn $ 35 36# Description: A program to run a simple program against every available 37# pmc counter present in a system. 38# 39# To use: 40# 41# pmctest.py ls > /dev/null 42# 43# This should result in ls being run with every available counter 44# and the system should neither lock up nor panic. 45 46import sys 47import subprocess 48from subprocess import PIPE 49 50# A list of strings that are not really counters, just 51# name tags that are output by pmccontrol -L 52notcounter = ["IAF", "IAP", "TSC", "UNC", "UCF"] 53 54def main(): 55 56 if (len(sys.argv) != 2): 57 print ("usage: pmctest.py program") 58 59 program = sys.argv[1] 60 61 p = subprocess.Popen(["pmccontrol", "-L"], stdout=PIPE) 62 counters = p.communicate()[0] 63 64 if len(counters) <= 0: 65 print "no counters found" 66 sys.exit() 67 68 for counter in counters.split(): 69 if counter in notcounter: 70 continue 71 p = subprocess.Popen(["pmcstat", "-p", counter, program], stdout=PIPE) 72 result = p.communicate()[0] 73 print result 74 75# The canonical way to make a python module into a script. 76# Remove if unnecessary. 77 78if __name__ == "__main__": 79 main() 80