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Issue 1332603002: [Android] Move perf utilities into devil. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: redirections for v8 Created 5 years, 3 months ago
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1 # Copyright 2013 The Chromium Authors. All rights reserved. 1 # Copyright 2015 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be 2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file. 3 # found in the LICENSE file.
4 4
5 # pylint: disable=unused-wildcard-import
6 # pylint: disable=wildcard-import
5 7
6 class CacheControl(object): 8 from devil.android.perf.cache_control import *
7 _DROP_CACHES = '/proc/sys/vm/drop_caches'
8
9 def __init__(self, device):
10 self._device = device
11
12 def DropRamCaches(self):
13 """Drops the filesystem ram caches for performance testing."""
14 self._device.RunShellCommand('sync', as_root=True)
15 self._device.WriteFile(CacheControl._DROP_CACHES, '3', as_root=True)
16
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