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/process/launch.h"
  12 #include "base/strings/string_util.h"
  13 #include "base/test/perf_log.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 void PerfTestSuite::Initialize() {
  21   TestSuite::Initialize();
  22
  23   // Initialize the perf timer log
  24   FilePath log_path =
  25       CommandLine::ForCurrentProcess()->GetSwitchValuePath("log-file");
  26   if (log_path.empty()) {
  27     PathService::Get(FILE_EXE, &log_path);
  28 #if defined(OS_ANDROID)
  29     base::FilePath tmp_dir;
  30     PathService::Get(base::DIR_CACHE, &tmp_dir);
  31     log_path = tmp_dir.Append(log_path.BaseName());
  32 #endif
  33     log_path = log_path.ReplaceExtension(FILE_PATH_LITERAL("log"));
  34     log_path = log_path.InsertBeforeExtension(FILE_PATH_LITERAL("_perf"));
  35   }
  36   ASSERT_TRUE(InitPerfLog(log_path));
  37
  38   // Raise to high priority to have more precise measurements. Since we don't
  39   // aim at 1% precision, it is not necessary to run at realtime level.
  40   if (!debug::BeingDebugged())
  41     RaiseProcessToHighPriority();
  42 }
  43
  44 void PerfTestSuite::Shutdown() {
  45   TestSuite::Shutdown();
  46   FinalizePerfLog();
  47 }
  48
  49 }  // namespace base