ec526df16f
Also changed time reporting to system time to be able to get synchronized with other memory (e.g. DOM) size status. Review URL: http://codereview.chromium.org/155764 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
74 lines
2.9 KiB
Python
Executable File
74 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#
|
|
# Copyright 2009 the V8 project authors. 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 Google Inc. 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.
|
|
|
|
# This is an utility for converting V8 heap logs into .hp files that can
|
|
# be further processed using 'hp2ps' tool (bundled with GHC and Valgrind)
|
|
# to produce heap usage histograms.
|
|
|
|
# Sample usage:
|
|
# $ ./shell --log-gc script.js
|
|
# $ tools/process-heap-prof.py v8.log | hp2ps -c > script-heap-graph.ps
|
|
# ('-c' enables color, see hp2ps manual page for more options)
|
|
|
|
import csv, sys, time
|
|
|
|
def process_logfile(filename):
|
|
first_call_time = None
|
|
sample_time = 0.0
|
|
sampling = False
|
|
try:
|
|
logfile = open(filename, 'rb')
|
|
try:
|
|
logreader = csv.reader(logfile)
|
|
|
|
print('JOB "v8"')
|
|
print('DATE "%s"' % time.asctime(time.localtime()))
|
|
print('SAMPLE_UNIT "seconds"')
|
|
print('VALUE_UNIT "bytes"')
|
|
|
|
for row in logreader:
|
|
if row[0] == 'heap-sample-begin' and row[1] == 'Heap':
|
|
sample_time = float(row[3])/1000.0
|
|
if first_call_time == None:
|
|
first_call_time = sample_time
|
|
sample_time -= first_call_time
|
|
print('BEGIN_SAMPLE %.2f' % sample_time)
|
|
sampling = True
|
|
elif row[0] == 'heap-sample-end' and row[1] == 'Heap':
|
|
print('END_SAMPLE %.2f' % sample_time)
|
|
sampling = False
|
|
elif row[0] == 'heap-sample-item' and sampling:
|
|
print('%s %d' % (row[1], int(row[3])))
|
|
finally:
|
|
logfile.close()
|
|
except:
|
|
sys.exit('can\'t open %s' % filename)
|
|
|
|
process_logfile(sys.argv[1])
|