[Oilpan] Measure time for forced/idle GC

tools/perf/measurements/oilpan_gc_times.py

 # Copyright 2014 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.
 
 import os
+import time

[kouhei (in TOK), 2015/03/02 05:03:57]

Remove.

[peria, 2015/03/02 05:27:58]

Done.

 
 from measurements import smoothness_controller
 from measurements import timeline_controller
 from telemetry.core.platform import tracing_category_filter
 from telemetry.core.platform import tracing_options
 from telemetry.page import page_test
 from telemetry.page.actions import action_runner
 from telemetry.timeline.model import TimelineModel
 from telemetry.util import statistics
 from telemetry.value import list_of_scalar_values
@@ skipping 12 matching lines @@
                   'oilpan_coalesce']
 
 def _AddTracingResults(events, results):
   # Prepare
   values = {}
   for name in _NAMES_TO_DUMP:
     values[name] = []
 
   # Parse in time line
   gc_type = None
-  forced = False
   mark_time = 0
   lazy_sweep_time = 0
   complete_sweep_time = 0
   for event in events:
     duration = event.thread_duration or event.duration
     if event.name == 'ThreadHeap::coalesce':
       values['oilpan_coalesce'].append(duration)
       continue
     if event.name == 'Heap::collectGarbage':
-      if not gc_type is None and not forced:
+      if not gc_type is None:
         values['oilpan_%s_mark' % gc_type].append(mark_time)
         values['oilpan_%s_lazy_sweep' % gc_type].append(lazy_sweep_time)
         values['oilpan_%s_complete_sweep' % gc_type].append(complete_sweep_time)
 
       gc_type = 'precise' if event.args['precise'] else 'conservative'
-      forced = event.args['forced']
       mark_time = duration
       lazy_sweep_time = 0
       complete_sweep_time = 0
       continue
     if event.name == 'ThreadHeap::lazySweepPages':
       lazy_sweep_time += duration
       continue
     if event.name == 'ThreadState::completeSweep':
       complete_sweep_time += duration
       continue
 
-  if not gc_type is None and not forced:
+  if not gc_type is None:
     values['oilpan_%s_mark' % gc_type].append(mark_time)
     values['oilpan_%s_lazy_sweep' % gc_type].append(lazy_sweep_time)
     values['oilpan_%s_complete_sweep' % gc_type].append(complete_sweep_time)
 
   # Dump
   page = results.current_page
   unit = 'ms'
   for name in _NAMES_TO_DUMP:
     if values[name]:
       results.AddValue(list_of_scalar_values.ListOfScalarValues(
@@ skipping 93 matching lines @@
 
 class OilpanGCTimesForInternals(_OilpanGCTimesBase):
   def __init__(self):
     super(OilpanGCTimesForInternals, self).__init__()
 
   @classmethod
   def CustomizeBrowserOptions(cls, options):
     # 'expose-internals-for-testing' can be enabled on content shell.
     assert 'content-shell' in options.browser_type
     options.AppendExtraBrowserArgs('--expose-internals-for-testing')