| #!/usr/bin/env python |
| # Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Takes an input JSON, and filters out all system call events that |
| took less than 0.2ms. |
| |
| This helps trim down the JSON data to only the most interesting / time critical |
| events. |
| """ |
| |
| import sys |
| import re |
| |
| |
| def parseEvents(z): |
| print 'parseEvents([' |
| for e in z: |
| if e.has_key('ms') and e.has_key('done'): |
| dur = e['done'] - e['ms'] |
| if dur < 0.2: |
| continue |
| # Ugly regex to remove the L suffix on large python numbers. |
| print '%s,' % re.sub('([0-9])L\\b', '\\1', str(e)) |
| print '])' |
| |
| |
| def main(): |
| execfile(sys.argv[1]) |
| |
| |
| if __name__ == '__main__': |
| main() |
