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#
# hackbench.py - class to manage an instance of hackbench load
#
# Copyright 2009,2010 Clark Williams <williams@redhat.com>
# Copyright 2009,2010 David Sommerseth <davids@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, params={}):
load.Load.__init__(self, "hackbench", params)
def __del__(self):
null = open("/dev/null", "w")
subprocess.call(['killall', '-9', 'hackbench'],
stdout=null, stderr=null)
os.close(null)
def setup(self):
'calculate arguments based on input parameters'
mult = int(self.params.setdefault('jobspercore', 2))
self.jobs = self.num_cpus * mult
self.datasize = self.params.setdefault('datasize', '1024')
self.workunit = self.params.setdefault('workunit', 'thread')
if self.workunit.startswith('thread'):
workarg = '-T'
else:
workarg = '-P'
self.args = ['hackbench', workarg,
'-g', str(self.jobs),
'-l', str(self.num_cpus * 256),
'-s', self.datasize,
]
def build(self):
self.ready = True
def runload(self):
null = os.open("/dev/null", os.O_RDWR)
if self.logging:
out = self.open_logfile("hackbench.stdout")
err = self.open_logfile("hackbench.stderr")
else:
out = err = null
self.debug("starting loop (jobs: %d)" % self.jobs)
while not self.stopevent.isSet():
p = subprocess.Popen(self.args, stdin=out, stdout=out, stderr=err)
time.sleep(1.0)
if p.poll() != None:
p.wait()
self.debug("stopping")
if p.poll() == None:
os.kill(p.pid, SIGKILL)
p.wait()
self.debug("returning from runload()")
os.close(null)
if self.logging:
os.close(out)
os.close(err)
def genxml(self, x):
x.taggedvalue('command_line', ' '.join(self.args), {'name':'hackbench'})
def create(params = {}):
return Hackbench(params)
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