146 lines
5.1 KiB
Python
Executable file
146 lines
5.1 KiB
Python
Executable file
#!/usr/bin/python2
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# Copyright 2015 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Wrapper to generate heat maps for chrome."""
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from __future__ import print_function
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import argparse
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import shutil
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import os
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import sys
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import tempfile
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from sets import Set
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from cros_utils import command_executer
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def IsARepoRoot(directory):
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"""Returns True if directory is the root of a repo checkout."""
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return os.path.exists(os.path.join(directory, '.repo'))
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class HeatMapProducer(object):
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"""Class to produce heat map."""
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def __init__(self, chromeos_root, perf_data, page_size, binary):
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self.chromeos_root = os.path.realpath(chromeos_root)
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self.perf_data = os.path.realpath(perf_data)
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self.page_size = page_size
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self.dir = os.path.dirname(os.path.realpath(__file__))
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self.binary = binary
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self.tempDir = ''
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self.ce = command_executer.GetCommandExecuter()
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self.loading_address = None
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self.temp_perf = ''
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self.temp_perf_inchroot = ''
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self.perf_report = ''
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def copyFileToChroot(self):
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self.tempDir = tempfile.mkdtemp(
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prefix=os.path.join(self.chromeos_root, 'src/'))
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self.temp_perf = os.path.join(self.tempDir, 'perf.data')
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shutil.copy2(self.perf_data, self.temp_perf)
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self.temp_perf_inchroot = os.path.join('~/trunk/src',
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os.path.basename(self.tempDir))
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def getPerfReport(self):
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cmd = ('cd %s; perf report -D -i perf.data > perf_report.txt' %
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self.temp_perf_inchroot)
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retval = self.ce.ChrootRunCommand(self.chromeos_root, cmd)
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if retval:
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raise RuntimeError('Failed to generate perf report')
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self.perf_report = os.path.join(self.tempDir, 'perf_report.txt')
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def getBinaryBaseAddress(self):
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cmd = 'grep PERF_RECORD_MMAP %s | grep "%s$"' % (self.perf_report,
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self.binary)
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retval, output, _ = self.ce.RunCommandWOutput(cmd)
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if retval:
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raise RuntimeError('Failed to run grep to get base address')
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baseAddresses = Set()
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for line in output.strip().split('\n'):
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head = line.split('[')[2]
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address = head.split('(')[0]
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baseAddresses.add(address)
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if len(baseAddresses) > 1:
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raise RuntimeError(
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'Multiple base address found, please disable ASLR and collect '
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'profile again')
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if not len(baseAddresses):
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raise RuntimeError('Could not find the base address in the profile')
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self.loading_address = baseAddresses.pop()
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def RemoveFiles(self):
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shutil.rmtree(self.tempDir)
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if os.path.isfile(os.path.join(os.getcwd(), 'out.txt')):
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os.remove(os.path.join(os.getcwd(), 'out.txt'))
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if os.path.isfile(os.path.join(os.getcwd(), 'inst-histo.txt')):
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os.remove(os.path.join(os.getcwd(), 'inst-histo.txt'))
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def getHeatmap(self):
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if not self.loading_address:
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return
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heatmap_script = os.path.join(self.dir, 'perf-to-inst-page.sh')
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cmd = '{0} {1} {2} {3} {4}'.format(heatmap_script, self.binary,
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self.perf_report, self.loading_address,
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self.page_size)
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retval = self.ce.RunCommand(cmd)
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if retval:
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raise RuntimeError('Failed to run script to generate heatmap')
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def main(argv):
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"""Parse the options.
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Args:
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argv: The options with which this script was invoked.
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Returns:
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0 unless an exception is raised.
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"""
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parser = argparse.ArgumentParser()
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parser.add_argument('--chromeos_root',
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dest='chromeos_root',
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required=True,
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help='ChromeOS root to use for generate heatmaps.')
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parser.add_argument('--perf_data',
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dest='perf_data',
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required=True,
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help='The raw perf data.')
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parser.add_argument('--binary',
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dest='binary',
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required=False,
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help='The name of the binary.',
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default='chrome')
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parser.add_argument('--page_size',
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dest='page_size',
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required=False,
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help='The page size for heat maps.',
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default=4096)
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options = parser.parse_args(argv)
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if not IsARepoRoot(options.chromeos_root):
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parser.error('% does not contain .repo dir.' % options.chromeos_root)
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if not os.path.isfile(options.perf_data):
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parser.error('Cannot find perf_data: %s.' % options.perf_data)
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heatmap_producer = HeatMapProducer(options.chromeos_root, options.perf_data,
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options.page_size, options.binary)
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try:
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heatmap_producer.copyFileToChroot()
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heatmap_producer.getPerfReport()
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heatmap_producer.getBinaryBaseAddress()
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heatmap_producer.getHeatmap()
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print('\nheat map and time histgram genereated in the current directory '
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'with name heat_map.png and timeline.png accordingly.')
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except RuntimeError, e:
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print(e)
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finally:
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heatmap_producer.RemoveFiles()
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
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