| # Copyright (c) 2011 The Chromium OS 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 re |
| from autotest_lib.client.bin import test |
| from autotest_lib.client.common_lib import error, utils |
| |
| class platform_HighResTimers(test.test): |
| version = 1 |
| |
| def check_timers(self): |
| timer_list = open('/proc/timer_list') |
| for line in timer_list.readlines(): |
| match = re.search('^\s*\.resolution:\s(\d+)\s*nsecs$', line) |
| if match: |
| res = int(match.group(1)) |
| if (res != 1): |
| raise error.TestError('Timer resolution %d != 1 ns' % res) |
| |
| def run_once(self): |
| try: |
| self.check_timers() |
| except error.TestError, e: |
| raise error.TestFail(e) |