tools/telemetry/telemetry/timeline/surface_flinger_timeline_data.py - Issue 809753002: Revert of telemetry: Clean up SurfaceFlinger statistics

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Side by Side Diff: tools/telemetry/telemetry/timeline/surface_flinger_timeline_data.py

Issue 809753002: Revert of telemetry: Clean up SurfaceFlinger statistics (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 6 years ago

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1 # Copyright 2014 The Chromium Authors. All rights reserved.

2 # Use of this source code is governed by a BSD-style license that can be

3 # found in the LICENSE file.

4

5 import json

6

7 from telemetry.timeline.timeline_data import TimelineData

8

9

10 class SurfaceFlingerTimelineData(TimelineData):

11 def __init__(self, pid, refresh_period, timestamps):

12 super(SurfaceFlingerTimelineData, self).__init__()

13 self._events = []

14 for ts in timestamps:

15 self._events.append(

16 {'cat': 'SurfaceFlinger',

17 'name': 'vsync_before',

18 'ts': ts,

19 'pid': pid,

20 'tid': pid,

21 'args': {'data': {'frame_count': 1,

22 'refresh_period': refresh_period}}})

23

24 def Serialize(self, f):

25 """Serializes the surface flinger data to a file-like object"""

26 json.dump(self._events, f, indent=4)

27

28 def EventData(self):

29 return self._events

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