base/test/perf_test_suite.cc

   1 // Copyright (c) 2010 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 #include "base/test/perf_test_suite.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/debug/debugger.h"
   9 #include "base/files/file_path.h"
  10 #include "base/path_service.h"
  11 #include "base/perftimer.h"
  12 #include "base/process_util.h"
  13 #include "base/string_util.h"
  14 #include "testing/gtest/include/gtest/gtest.h"
  15
  16 namespace base {
  17
  18 PerfTestSuite::PerfTestSuite(int argc, char** argv) : TestSuite(argc, argv) {
  19 }
  20
  21 void PerfTestSuite::Initialize() {
  22   TestSuite::Initialize();
  23
  24   // Initialize the perf timer log
  25   FilePath log_path =
  26       CommandLine::ForCurrentProcess()->GetSwitchValuePath("log-file");
  27   if (log_path.empty()) {
  28     FilePath exe;
  29     PathService::Get(base::FILE_EXE, &exe);
  30     log_path = exe.ReplaceExtension(FILE_PATH_LITERAL("log"));
  31     log_path = log_path.InsertBeforeExtension(FILE_PATH_LITERAL("_perf"));
  32   }
  33   ASSERT_TRUE(InitPerfLog(log_path));
  34
  35   // Raise to high priority to have more precise measurements. Since we don't
  36   // aim at 1% precision, it is not necessary to run at realtime level.
  37   if (!base::debug::BeingDebugged())
  38     base::RaiseProcessToHighPriority();
  39 }
  40
  41 void PerfTestSuite::Shutdown() {
  42   TestSuite::Shutdown();
  43   FinalizePerfLog();
  44 }
  45
  46 }  // namespace base