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#
# hackbench.py - class to manage an instance of hackbench load
#
# Copyright 2009 Clark Williams <williams@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# For the avoidance of doubt the "preferred form" of this code is one which
# is in an open unpatent encumbered format. Where cryptographic key signing
# forms part of the process of creating an executable the information
# including keys needed to generate an equivalently functional executable
# are deemed to be part of the source code.
#
import sys
import os
import time
import glob
import subprocess
from signal import SIGTERM
from signal import SIGKILL
sys.pathconf = "."
import load
class Hackbench(load.Load):
def __init__(self, builddir=None, srcdir=None, debug=False, num_cpus=1, params={}):
load.Load.__init__(self, "hackbench", builddir, srcdir, debug, num_cpus, params)
def __del__(self):
null = open("/dev/null", "w")
subprocess.call(['killall', '-9', 'hackbench'],
stdout=null, stderr=null)
os.close(null)
def setup(self):
# find our tarball
if self.params.has_key('source'):
self.source = os.path.join(self.srcdir, self.params.source)
if not os.path.exists(self.source):
raise RuntimeError, "hackbench: source %s does not exist!" % self.source
else:
tarfiles = glob.glob(os.path.join(self.srcdir, "hackbench*"))
if len(tarfiles):
self.source = tarfiles[0]
# check for existing directory
self.mydir = os.path.join(self.builddir, "hackbench")
if not os.path.exists(self.mydir):
self.debug("setting up hackbench self.source")
tarargs = ['tar', '-C', self.builddir, '-x']
if self.source.endswith(".bz2"):
tarargs.append("-j")
elif self.source.endswith(".gz"):
tarargs.append("-z")
tarargs.append("-f")
tarargs.append(self.source)
self.debug("unpacking %s into %s" % (self.source, self.mydir))
try:
subprocess.call(tarargs)
except:
print "untar'ing hackbench failed!"
sys.exit(-1)
if not os.path.exists(self.mydir):
raise RuntimeError, 'no hackbench directory!'
mult = 1
if self.params.has_key('jobspercore'):
mult = int(self.params.jobspercore)
self.jobs = self.num_cpus * mult
def build(self):
self.debug("building")
null = os.open("/dev/null", os.O_RDWR)
# clean up from potential previous run
exe = os.path.join(self.mydir, "hackbench")
if os.path.exists(exe):
os.remove(exe)
subprocess.call(["make", "-C", self.mydir],
stdin=null, stdout=null, stderr=null)
self.debug("built")
self.exe = os.path.join(self.mydir, "hackbench")
if not os.path.exists(self.exe):
raise RuntimeError, "Can't find hackbench executable: %s" % self.exe
self.args = [self.exe, str(self.jobs)]
self.ready = True
os.close(null)
def runload(self):
null = os.open("/dev/null", os.O_RDWR)
self.debug("starting loop (jobs: %d)" % self.jobs)
p = subprocess.Popen(self.args, stdin=null,stdout=null,stderr=null)
while not self.stopevent.isSet():
time.sleep(1.0)
if p.poll() != None:
p.wait()
p = subprocess.Popen(self.args,stdin=null,stdout=null,stderr=null)
self.debug("stopping")
if p.poll() == None:
os.kill(p.pid, SIGKILL)
p.wait()
self.debug("returning from runload()")
os.close(null)
def genxml(self, x):
x.taggedvalue('command_line', ' '.join(self.args), {'name':'hackbench'})
def create(builddir, srcdir, debug, num_cpus, params = {}):
return Hackbench(builddir, srcdir, debug, num_cpus, params)
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