tools/perf/metrics/stats_table_util.py - Issue 23112028: [Telemetry] Add support for capturing V8 object stats to Telemetry.

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Side by Side Diff: tools/perf/metrics/stats_table_util.py

Issue 23112028: [Telemetry] Add support for capturing V8 object stats to Telemetry. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@stats_table_android

Patch Set: Created 7 years, 3 months ago

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	1 # Copyright 2013 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 """This is a helper module to get and manipulate stats table data.

	6

	7 The status table data is the same data as is visible from "chrome://stats" and

	8 relies on --enable-stats-table being set.

	9 More information can be found at: chromium/src/base/metrics/stats_table.h

	10

	11 Stats table data is collected with the window.statsCollectionController object.

	12 """

	13

	14 import json

	15

	16

	17 def GetStatsTable(tab):

	18 """Get the full stats table from the browser."""

	19 stats_table_json = tab.EvaluateJavaScript(

	20 'statsCollectionController.getStatsTable()')

	21 if stats_table_json:

	22 return json.loads(stats_table_json)

	23 return None

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