chrome/browser/load_library_perf_test.cc

   1 // Copyright 2014 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/files/file_path.h"
   6 #include "base/files/file_util.h"
   7 #include "base/path_service.h"
   8 #include "base/scoped_native_library.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/time/time.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12 #include "testing/perf/perf_test.h"
  13 #include "widevine_cdm_version.h"  //  In SHARED_INTERMEDIATE_DIR.
  14
  15 // Measures the size (bytes) and time to load (sec) of a native library.
  16 void MeasureSizeAndTimeToLoadNativeLibrary(const base::FilePath& library_name) {
  17   base::FilePath output_dir;
  18   ASSERT_TRUE(PathService::Get(base::DIR_MODULE, &output_dir));
  19   base::FilePath library_path = output_dir.Append(library_name);
  20   ASSERT_TRUE(base::PathExists(library_path)) << library_path.value();
  21
  22   int64 size = 0;
  23   ASSERT_TRUE(base::GetFileSize(library_path, &size));
  24   perf_test::PrintResult("library_size",
  25                          "",
  26                          library_name.AsUTF8Unsafe(),
  27                          static_cast<size_t>(size),
  28                          "bytes",
  29                          true);
  30
  31   base::NativeLibraryLoadError error;
  32   base::TimeTicks start = base::TimeTicks::Now();
  33   base::NativeLibrary native_library =
  34       base::LoadNativeLibrary(library_path, &error);
  35   double delta = (base::TimeTicks::Now() - start).InMillisecondsF();
  36   ASSERT_TRUE(native_library) << "Error loading library: " << error.ToString();
  37   base::UnloadNativeLibrary(native_library);
  38   perf_test::PrintResult("time_to_load_library",
  39                          "",
  40                          library_name.AsUTF8Unsafe(),
  41                          delta,
  42                          "ms",
  43                          true);
  44 }
  45
  46 // Use the base name of the library to dynamically get the platform specific
  47 // name. See base::GetNativeLibraryName() for details.
  48 void MeasureSizeAndTimeToLoadNativeLibraryByBaseName(
  49     const std::string& base_library_name) {
  50   MeasureSizeAndTimeToLoadNativeLibrary(base::FilePath::FromUTF16Unsafe(
  51       base::GetNativeLibraryName(base::ASCIIToUTF16(base_library_name))));
  52 }
  53
  54 #if defined(ENABLE_PEPPER_CDMS)
  55 #if defined(WIDEVINE_CDM_AVAILABLE)
  56 TEST(LoadCDMPerfTest, Widevine) {
  57   MeasureSizeAndTimeToLoadNativeLibrary(
  58       base::FilePath::FromUTF8Unsafe(kWidevineCdmFileName));
  59 }
  60
  61 TEST(LoadCDMPerfTest, WidevineAdapter) {
  62   MeasureSizeAndTimeToLoadNativeLibrary(
  63       base::FilePath::FromUTF8Unsafe(kWidevineCdmAdapterFileName));
  64 }
  65 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
  66
  67 TEST(LoadCDMPerfTest, ExternalClearKey) {
  68 #if defined(OS_MACOSX)
  69   MeasureSizeAndTimeToLoadNativeLibrary(
  70     base::FilePath::FromUTF8Unsafe("libclearkeycdm.dylib"));
  71 #else
  72   MeasureSizeAndTimeToLoadNativeLibraryByBaseName("clearkeycdm");
  73 #endif  // defined(OS_MACOSX)
  74 }
  75
  76 TEST(LoadCDMPerfTest, ExternalClearKeyAdapter) {
  77 #if defined(OS_MACOSX)
  78   MeasureSizeAndTimeToLoadNativeLibrary(
  79     base::FilePath::FromUTF8Unsafe("clearkeycdmadapter.plugin"));
  80 #else
  81   MeasureSizeAndTimeToLoadNativeLibraryByBaseName("clearkeycdmadapter");
  82 #endif  // defined(OS_MACOSX)
  83 }
  84 #endif  // defined(ENABLE_PEPPER_CDMS)