Port flush_cache tool and perf_tests.

BUG=4160,4263
Review URL: http://codereview.chromium.org/9639

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@6815 0039d316-1c4b-4281-b951-d872f2087c98

12 files changed, 165 insertions, 220 deletions

diff --git a/base/base_lib.scons b/base/base_lib.scons
index 8f8fd0c..50e7b99 100644
--- a/base/base_lib.scons
+++ b/base/base_lib.scons
@@ -191,6 +191,7 @@ if env['PLATFORM'] == 'darwin':
       'platform_thread_mac.mm',
       'scoped_nsautorelease_pool.mm',
       'sys_string_conversions_mac.mm',
+      'test_file_util_mac.cc',
       'worker_pool_mac.mm',
   ])
 
@@ -207,6 +208,7 @@ if env['PLATFORM'] == 'posix':
       'process_posix.cc',
       'process_util_linux.cc',
       'sys_string_conversions_linux.cc',
+      'test_file_util_linux.cc',
       'worker_pool.cc',
   ])
 
diff --git a/base/test_file_util.h b/base/test_file_util.h
index 3547d55..1ecaf29 100644
--- a/base/test_file_util.h
+++ b/base/test_file_util.h
@@ -9,11 +9,13 @@
 
 #include <string>
 
+class FilePath;
+
 namespace file_util {
 
 // Clear a specific file from the system cache. After this call, trying
 // to access this file will result in a cold load from the hard drive.
-bool EvictFileFromSystemCache(const wchar_t* file);
+bool EvictFileFromSystemCache(const FilePath& file);
 
 // Like CopyFileNoCache but recursively copies all files and subdirectories
 // in the given input directory to the output directory. Any files in the
diff --git a/base/test_file_util_linux.cc b/base/test_file_util_linux.cc
index 421d182..c1b3768 100644
--- a/base/test_file_util_linux.cc
+++ b/base/test_file_util_linux.cc
@@ -12,9 +12,8 @@
 
 namespace file_util {
 
-bool EvictFileFromSystemCache(const wchar_t* file) {
-  FilePath fpath = FilePath::FromWStringHack(file);
-  int fd = open(fpath.value().c_str(), O_RDONLY);
+bool EvictFileFromSystemCache(const FilePath& file) {
+  int fd = open(file.value().c_str(), O_RDONLY);
   if (fd < 0)
     return false;
   if (fdatasync(fd) != 0)
diff --git a/base/test_file_util_mac.cc b/base/test_file_util_mac.cc
index ebb13f3..1dd8533 100644
--- a/base/test_file_util_mac.cc
+++ b/base/test_file_util_mac.cc
@@ -8,7 +8,7 @@
 
 namespace file_util {
 
-bool EvictFileFromSystemCache(const wchar_t* file) {
+bool EvictFileFromSystemCache(const FilePath& file) {
   // TODO(port): Implement.
   NOTIMPLEMENTED();
   return false;
diff --git a/chrome/browser/safe_browsing/database_perftest.cc b/chrome/browser/safe_browsing/database_perftest.cc
index 273bda4..0da2ffc 100644
--- a/chrome/browser/safe_browsing/database_perftest.cc
+++ b/chrome/browser/safe_browsing/database_perftest.cc
@@ -5,25 +5,26 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <limits>
 #include <set>
 
+#include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/perftimer.h"
+#include "base/rand_util.h"
+#include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "base/test_file_util.h"
 #include "chrome/browser/safe_browsing/safe_browsing_database.h"
+#include "chrome/browser/safe_browsing/safe_browsing_database_impl.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/sqlite_compiled_statement.h"
 #include "chrome/common/sqlite_utils.h"
+#include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-// These tests are slow, especially the ones that create databases.  So disable
-// them by default.
-//#define SAFE_BROWSING_DATABASE_TESTS_ENABLED
-#ifdef SAFE_BROWSING_DATABASE_TESTS_ENABLED
-
 namespace {
 
 // Base class for a safebrowsing database.  Derived classes can implement
@@ -35,28 +36,27 @@ class Database {
 
   ~Database() {
     if (db_) {
-      statement_cache_.Cleanup();
       sqlite3_close(db_);
       db_ = NULL;
     }
   }
 
-  bool Init(const std::string& name, bool create) {
+  bool Init(const FilePath& name, bool create) {
     // get an empty file for the test DB
-    std::wstring filename;
+    FilePath filename;
     PathService::Get(base::DIR_TEMP, &filename);
-    filename.push_back(FilePath::kSeparators[0]);
-    filename.append(ASCIIToWide(name));
+    filename = filename.Append(name);
 
     if (create) {
-      DeleteFile(filename.c_str());
+      file_util::Delete(filename, false);
     } else {
-      DLOG(INFO) << "evicting " << name << " ...";
-      file_util::EvictFileFromSystemCache(filename.c_str());
+      DLOG(INFO) << "evicting " << name.value() << " ...";
+      file_util::EvictFileFromSystemCache(filename);
       DLOG(INFO) << "... evicted";
     }
 
-    if (sqlite3_open(WideToUTF8(filename).c_str(), &db_) != SQLITE_OK)
+    const std::string sqlite_path = WideToUTF8(filename.ToWStringHack());
+    if (sqlite3_open(sqlite_path.c_str(), &db_) != SQLITE_OK)
       return false;
 
     statement_cache_.set_db(db_);
@@ -197,7 +197,7 @@ class IndexedWithIDDatabase : public SimpleDatabase {
   }
 };
 
-}
+}  // namespace
 
 class SafeBrowsing: public testing::Test {
  protected:
@@ -253,7 +253,8 @@ class SafeBrowsing: public testing::Test {
     db_name_.append(count_start);
     db_name_.append(db_->GetDBSuffix());
 
-    ASSERT_TRUE(db_->Init(db_name_, type == WRITE));
+    FilePath path = FilePath::FromWStringHack(ASCIIToWide(db_name_));
+    ASSERT_TRUE(db_->Init(path, type == WRITE));
 
     if (type == WRITE) {
       WriteEntries(size);
@@ -275,10 +276,9 @@ class SafeBrowsing: public testing::Test {
     SQLTransaction transaction(db_->db());
     transaction.Begin();
 
-    int inc = kint32max / count;
     for (int i = 0; i < count; i++) {
-      int hostkey;
-      rand_s((unsigned int*)&hostkey);
+      int hostkey = base::RandInt(std::numeric_limits<int>::min(),
+                                  std::numeric_limits<int>::max());
       ASSERT_TRUE(db_->Add(hostkey, prefixes, 1));
     }
 
@@ -292,8 +292,8 @@ class SafeBrowsing: public testing::Test {
     int64 total_ms = 0;
 
     for (int i = 0; i < count; ++i) {
-      int key;
-      rand_s((unsigned int*)&key);
+      int key = base::RandInt(std::numeric_limits<int>::min(),
+                              std::numeric_limits<int>::max());
 
       PerfTimer timer;
 
@@ -332,74 +332,75 @@ class SafeBrowsing: public testing::Test {
   std::string db_name_;
 };
 
-TEST_F(SafeBrowsing, Write_100K) {
+TEST_F(SafeBrowsing, DISABLED_Write_100K) {
 }
 
-TEST_F(SafeBrowsing, Read_100K) {
+TEST_F(SafeBrowsing, DISABLED_Read_100K) {
 }
 
-TEST_F(SafeBrowsing, WriteIndexed_100K) {
+TEST_F(SafeBrowsing, DISABLED_WriteIndexed_100K) {
 }
 
-TEST_F(SafeBrowsing, ReadIndexed_100K) {
+TEST_F(SafeBrowsing, DISABLED_ReadIndexed_100K) {
 }
 
-TEST_F(SafeBrowsing, WriteIndexed_250K) {
+TEST_F(SafeBrowsing, DISABLED_WriteIndexed_250K) {
 }
 
-TEST_F(SafeBrowsing, ReadIndexed_250K) {
+TEST_F(SafeBrowsing, DISABLED_ReadIndexed_250K) {
 }
 
-TEST_F(SafeBrowsing, WriteIndexed_500K) {
+TEST_F(SafeBrowsing, DISABLED_WriteIndexed_500K) {
 }
 
-TEST_F(SafeBrowsing, ReadIndexed_500K) {
+TEST_F(SafeBrowsing, DISABLED_ReadIndexed_500K) {
 }
 
-TEST_F(SafeBrowsing, ReadIndexedWithID_250K) {
+TEST_F(SafeBrowsing, DISABLED_WriteIndexedWithID_250K) {
 }
 
-TEST_F(SafeBrowsing, WriteIndexedWithID_250K) {
+TEST_F(SafeBrowsing, DISABLED_ReadIndexedWithID_250K) {
 }
 
-TEST_F(SafeBrowsing, ReadIndexedWithID_500K) {
+TEST_F(SafeBrowsing, DISABLED_WriteIndexedWithID_500K) {
 }
 
-TEST_F(SafeBrowsing, WriteIndexedWithID_500K) {
+TEST_F(SafeBrowsing, DISABLED_ReadIndexedWithID_500K) {
 }
 
-TEST_F(SafeBrowsing, CountIndexed_250K) {
+TEST_F(SafeBrowsing, DISABLED_CountIndexed_250K) {
 }
 
-TEST_F(SafeBrowsing, CountIndexed_500K) {
+TEST_F(SafeBrowsing, DISABLED_CountIndexed_500K) {
 }
 
-TEST_F(SafeBrowsing, CountIndexedWithID_250K) {
+TEST_F(SafeBrowsing, DISABLED_CountIndexedWithID_250K) {
 }
 
-TEST_F(SafeBrowsing, CountIndexedWithID_500K) {
+TEST_F(SafeBrowsing, DISABLED_CountIndexedWithID_500K) {
 }
 
 
 class SafeBrowsingDatabaseTest {
  public:
-  SafeBrowsingDatabaseTest(const std::wstring& name) {
+  SafeBrowsingDatabaseTest(const FilePath& filename) {
     logging::InitLogging(
         NULL, logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG,
         logging::LOCK_LOG_FILE,
         logging::DELETE_OLD_LOG_FILE);
 
-    PathService::Get(base::DIR_TEMP, &filename_);
-    filename_.push_back(FilePath::kSeparators[0]);
-    filename_.append(name);
+    std::wstring tmp_path;
+    PathService::Get(base::DIR_TEMP, &tmp_path);
+    path_ = FilePath::FromWStringHack(tmp_path);
+    path_ = path_.Append(filename);
   }
 
   void Create(int size) {
-    DeleteFile(filename_.c_str());
+    file_util::Delete(path_, false);
 
-    SafeBrowsingDatabase database;
-    database.set_synchronous();
-    EXPECT_TRUE(database.Init(filename_));
+    scoped_ptr<SafeBrowsingDatabase> database(SafeBrowsingDatabase::Create());
+    database->SetSynchronous();
+    EXPECT_TRUE(database->Init(path_.ToWStringHack(), NULL));
 
     int chunk_id = 0;
     int total_host_keys = size;
@@ -413,7 +414,8 @@ class SafeBrowsingDatabaseTest {
 
       for (int j = 0; j < host_keys_per_chunk; ++j) {
         SBChunkHost host;
-        rand_s((unsigned int*)&host.host);
+        host.host = base::RandInt(std::numeric_limits<int>::min(),
+                                  std::numeric_limits<int>::max());
         host.entry = SBEntry::Create(SBEntry::ADD_PREFIX, 2);
         host.entry->SetPrefixAt(0, 0x2425525);
         host.entry->SetPrefixAt(1, 0x1536366);
@@ -422,32 +424,37 @@ class SafeBrowsingDatabaseTest {
       }
     }
 
-    database.InsertChunks("goog-malware", chunks);
+    database->InsertChunks("goog-malware", chunks);
   }
 
   void Read(bool use_bloom_filter) {
     int keys_to_read = 500;
-    file_util::EvictFileFromSystemCache(filename_.c_str());
+    file_util::EvictFileFromSystemCache(path_);
 
-    SafeBrowsingDatabase database;
-    database.set_synchronous();
-    EXPECT_TRUE(database.Init(filename_));
+    scoped_ptr<SafeBrowsingDatabase> database(SafeBrowsingDatabase::Create());
+    database->SetSynchronous();
+    EXPECT_TRUE(database->Init(path_.ToWStringHack(), NULL));
 
     PerfTimer total_timer;
     int64 db_ms = 0;
     int keys_from_db = 0;
     for (int i = 0; i < keys_to_read; ++i) {
-      int key;
-      rand_s((unsigned int*)&key);
+      int key = base::RandInt(std::numeric_limits<int>::min(),
+                              std::numeric_limits<int>::max());
 
       std::string url = StringPrintf("http://www.%d.com/blah.html", key);
 
       std::string matching_list;
       std::vector<SBPrefix> prefix_hits;
+      std::vector<SBFullHashResult> full_hits;
       GURL gurl(url);
-      if (!use_bloom_filter || database.NeedToCheckUrl(gurl)) {
+      if (!use_bloom_filter || database->NeedToCheckUrl(gurl)) {
         PerfTimer timer;
-        database.ContainsUrl(gurl, &matching_list, &prefix_hits);
+        database->ContainsUrl(gurl,
+                              &matching_list,
+                              &prefix_hits,
+                              &full_hits,
+                              base::Time::Now());
 
         int64 time_ms = timer.Elapsed().InMilliseconds();
 
@@ -460,81 +467,80 @@ class SafeBrowsingDatabaseTest {
 
     int64 total_ms = total_timer.Elapsed().InMilliseconds();
 
-    DLOG(INFO) << WideToASCII(file_util::GetFilenameFromPath(filename_)) <<
-        " read " << keys_to_read << " entries in " << total_ms << " ms.  "  <<
-        keys_from_db << " keys were read from the db, with average read taking " <<
+    DLOG(INFO) << path_.BaseName().value() << " read " << keys_to_read <<
+        " entries in " << total_ms << " ms.  "  << keys_from_db <<
+        " keys were read from the db, with average read taking " <<
         db_ms / keys_from_db << " ms";
   }
 
   void BuildBloomFilter() {
-    file_util::EvictFileFromSystemCache(filename_.c_str());
-    file_util::Delete(SafeBrowsingDatabase::BloomFilterFilename(filename_), false);
+    file_util::EvictFileFromSystemCache(path_);
+    file_util::Delete(SafeBrowsingDatabase::BloomFilterFilename(
+          path_.ToWStringHack()), false);
 
     PerfTimer total_timer;
 
-    SafeBrowsingDatabase database;
-    database.set_synchronous();
-    EXPECT_TRUE(database.Init(filename_));
+    scoped_ptr<SafeBrowsingDatabase> database(SafeBrowsingDatabase::Create());
+    database->SetSynchronous();
+    EXPECT_TRUE(database->Init(path_.ToWStringHack(), NULL));
 
     int64 total_ms = total_timer.Elapsed().InMilliseconds();
 
-    DLOG(INFO) << WideToASCII(file_util::GetFilenameFromPath(filename_)) <<
+    DLOG(INFO) << path_.BaseName().value() <<
         " built bloom filter in " << total_ms << " ms.";
   }
 
  private:
-  std::wstring filename_;
+  FilePath path_;
 };
 
 // Adds 100K host records.
-TEST(SafeBrowsingDatabase, FillUp100K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing100K");
+TEST(SafeBrowsingDatabase, DISABLED_FillUp100K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing100K")));
   db.Create(100000);
 }
 
 // Adds 250K host records.
-TEST(SafeBrowsingDatabase, FillUp250K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing250K");
+TEST(SafeBrowsingDatabase, DISABLED_FillUp250K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing250K")));
   db.Create(250000);
 }
 
 // Adds 500K host records.
-TEST(SafeBrowsingDatabase, FillUp500K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing500K");
+TEST(SafeBrowsingDatabase, DISABLED_FillUp500K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing500K")));
   db.Create(500000);
 }
 
 // Reads 500 entries and prints the timing.
-TEST(SafeBrowsingDatabase, ReadFrom250K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing250K");
+TEST(SafeBrowsingDatabase, DISABLED_ReadFrom250K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing250K")));
   db.Read(false);
 }
 
-TEST(SafeBrowsingDatabase, ReadFrom500K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing500K");
+TEST(SafeBrowsingDatabase, DISABLED_ReadFrom500K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing500K")));
   db.Read(false);
 }
 
 // Read 500 entries with a bloom filter and print the timing.
-TEST(SafeBrowsingDatabase, BloomReadFrom250K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing250K");
+TEST(SafeBrowsingDatabase, DISABLED_BloomReadFrom250K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing250K")));
   db.Read(true);
 }
 
-TEST(SafeBrowsingDatabase, BloomReadFrom500K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing500K");
+TEST(SafeBrowsingDatabase, DISABLED_BloomReadFrom500K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing500K")));
   db.Read(true);
 }
 
 // Test how long bloom filter creation takes.
-TEST(SafeBrowsingDatabase, BuildBloomFilter250K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing250K");
+TEST(SafeBrowsingDatabase, DISABLED_BuildBloomFilter250K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing250K")));
   db.BuildBloomFilter();
 }
 
-TEST(SafeBrowsingDatabase, BuildBloomFilter500K) {
-  SafeBrowsingDatabaseTest db(L"SafeBrowsing500K");
+TEST(SafeBrowsingDatabase, DISABLED_BuildBloomFilter500K) {
+  SafeBrowsingDatabaseTest db(FilePath(FILE_PATH_LITERAL("SafeBrowsing500K")));
   db.BuildBloomFilter();
 }
-
-#endif
diff --git a/chrome/browser/safe_browsing/safe_browsing_database.h b/chrome/browser/safe_browsing/safe_browsing_database.h
index 5e38763..6e6612a 100644
--- a/chrome/browser/safe_browsing/safe_browsing_database.h
+++ b/chrome/browser/safe_browsing/safe_browsing_database.h
@@ -89,6 +89,9 @@ class SafeBrowsingDatabase {
   virtual std::wstring filename() const { return filename_; }
 
  protected:
+  friend class SafeBrowsingDatabaseTest;
+  FRIEND_TEST(SafeBrowsingDatabase, HashCaching);
+
   static std::wstring BloomFilterFilename(const std::wstring& db_filename);
 
   // Load the bloom filter off disk, or generates one if it doesn't exist.
@@ -106,9 +109,6 @@ class SafeBrowsingDatabase {
   // Measuring false positive rate. Call this each time we look in the filter.
   virtual void IncrementBloomFilterReadCount() {}
 
-  // Full hash cache support.
-  FRIEND_TEST(SafeBrowsingDatabase, HashCaching);
-
   typedef struct HashCacheEntry {
     SBFullHash full_hash;
     int list_id;
diff --git a/chrome/browser/visitedlink_perftest.cc b/chrome/browser/visitedlink_perftest.cc
index d589f92..3775fab 100644
--- a/chrome/browser/visitedlink_perftest.cc
+++ b/chrome/browser/visitedlink_perftest.cc
@@ -6,6 +6,7 @@
 #include <string>
 #include <vector>
 
+#include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/perftimer.h"
 #include "base/shared_memory.h"
@@ -143,7 +144,8 @@ TEST_F(VisitedLink, TestLoad) {
   for (int i = 0; i < load_count; i++)
   {
     // make sure the file has to be re-loaded
-    file_util::EvictFileFromSystemCache(db_name_.c_str());
+    file_util::EvictFileFromSystemCache(
+        FilePath::FromWStringHack(std::wstring(db_name_)));
 
     // cold load (no OS cache, hopefully)
     {
diff --git a/chrome/chrome.scons b/chrome/chrome.scons
index a012047..78d63b8 100644
--- a/chrome/chrome.scons
+++ b/chrome/chrome.scons
@@ -93,7 +93,6 @@ if env['PLATFORM'] != 'win32':
       'test/memory_test/memory_test.scons',
       'test/mini_installer_test/mini_installer_test.scons',
       'test/page_cycler/page_cycler_tests.scons',
-      'test/perf/perftests.scons',
       'test/plugin/plugin_tests.scons',
       'test/reliability/reliability_tests.scons',
       'test/security_tests/security_tests.scons',
@@ -103,7 +102,6 @@ if env['PLATFORM'] != 'win32':
       'test/ui/ui_tests.scons',
       'tools/convert_dict/convert_dict.scons',
       'tools/crash_service/crash_service.scons',
-      'tools/perf/flush_cache/flush_cache.scons',
       'tools/profiles/generate_profile.scons',
   ]
   sconscript_files = list(set(sconscript_files) - set(remove_files))
diff --git a/chrome/test/perf/perftests.cc b/chrome/test/perf/perftests.cc
index 3e67a6b..18d92aa 100644
--- a/chrome/test/perf/perftests.cc
+++ b/chrome/test/perf/perftests.cc
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/at_exit.h"
+#include "base/command_line.h"
+#include "base/debug_util.h"
 #include "base/message_loop.h"
 #include "base/perftimer.h"
 #include "base/process_util.h"
@@ -11,7 +14,9 @@
 // TODO(darin): share code with base/run_all_perftests.cc
 
 int main(int argc, char **argv) {
+  base::AtExitManager exit_manager;
   base::EnableTerminationOnHeapCorruption();
+  CommandLine::SetArgcArgv(argc, argv);
   chrome::RegisterPathProvider();
   MessageLoop main_message_loop;
 
@@ -43,8 +48,8 @@ int main(int argc, char **argv) {
 
   // Raise to high priority to have more precise measurements. Since we don't
   // aim at 1% precision, it is not necessary to run at realtime level.
-    if (!IsDebuggerPresent()) {
-    SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
+  if (!DebugUtil::BeingDebugged()) {
+    base::RaiseProcessToHighPriority();
   }
 
   int result = RUN_ALL_TESTS();
diff --git a/chrome/test/perf/perftests.scons b/chrome/test/perf/perftests.scons
index d93f4a6..c089027 100644
--- a/chrome/test/perf/perftests.scons
+++ b/chrome/test/perf/perftests.scons
@@ -1,29 +1,22 @@
-# Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+# Copyright (c) 2008 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+__doc__ = """
+Configuration for building the perf_tests{,.exe} executable.
+"""
+
 Import('env')
 
 env = env.Clone()
 
 env.ApplySConscript([
-    '$BASE_DIR/gfx/using_base_gfx.scons',
     '$BASE_DIR/using_base.scons',
-    '$BZIP2_DIR/using_bzip2.scons',
-    '$CHROME_DIR/third_party/hunspell/using_hunspell.scons',
+    '$NET_DIR/using_net.scons',
     '$CHROME_SRC_DIR/build/using_googleurl.scons',
-    '$CHROME_SRC_DIR/build/using_v8.scons',
     '$GTEST_DIR/../using_gtest.scons',
     '$ICU38_DIR/using_icu38.scons',
-    '$LIBJPEG_DIR/using_libjpeg.scons',
-    '$LIBPNG_DIR/using_libpng.scons',
-    '$LIBXML_DIR/using_libxml.scons',
-    '$LIBXSLT_DIR/using_libxslt.scons',
     '$MODP_B64_DIR/using_modp_b64.scons',
-    '$NET_DIR/using_net.scons',
-    '$SDCH_DIR/using_sdch.scons',
-    '$SKIA_DIR/using_skia.scons',
-    '$ZLIB_DIR/using_zlib.scons',
 ])
 
 env.Prepend(
@@ -31,35 +24,16 @@ env.Prepend(
         'PERF_TEST',
     ],
     LIBS = [
-        'activex_shim',
         'browser',
-        'browser_views',
         'common',
-        'debugger',
-        'default_plugin',
-        'glue',
-        'JavaScriptCore_pcre',
-        'plugin',
-        'port',
-        'renderer',
         'sqlite',
-        'util',
-        'v8_snapshot',
-        'V8Bindings',
-        'views',
-        'WebCore',
-        'WTF',
     ],
 )
 
-if env['PLATFORM'] == 'win32':
-  env.Prepend(
-      LIBS = [
-          'rpcrt4',
-          'shlwapi',
-          'winmm',
-      ],
-  )
+if env['PLATFORM'] in ('posix', 'darwin'):
+  env.SConscript([
+      '$LIBEVENT_DIR/using_libevent.scons',
+  ], {'env':env})
 
 input_files = [
     'perftests.cc',
@@ -71,4 +45,24 @@ input_files = [
     '$CHROME_DIR/common/json_value_serializer_perftest.cc',
 ]
 
-env.ChromeTestProgram('perf_tests', input_files)
+if env['PLATFORM'] == 'win32':
+  env.Prepend(
+      LIBS = [
+          'rpcrt4',
+          'shlwapi',
+          'winmm',
+      ]
+  )
+
+if env['PLATFORM'] != 'win32':
+  # TODO(port): Port these files.
+  remove_files = [
+      'url_parse_perftest.cc',
+      '$CHROME_DIR/browser/visitedlink_master$OBJSUFFIX',
+      '$CHROME_DIR/browser/visitedlink_perftest.cc',
+  ]
+  for file in remove_files:
+    input_files.remove(file)
+
+if env['PLATFORM'] in ('posix', 'win32'):
+  env.ChromeTestProgram('perf_tests', input_files)
diff --git a/chrome/tools/perf/flush_cache/flush_cache.cc b/chrome/tools/perf/flush_cache/flush_cache.cc
index d6ba850..e178da4e 100644
--- a/chrome/tools/perf/flush_cache/flush_cache.cc
+++ b/chrome/tools/perf/flush_cache/flush_cache.cc
@@ -2,9 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This little program attempts to flush the disk cache for some files.
+// This little program attempts to flush the system cache for some files.
 // It's useful for testing Chrome with a cold database.
 
+#include "base/file_path.h"
 #include "base/string_piece.h"
 #include "base/process_util.h"
 #include "base/sys_string_conversions.h"
@@ -20,7 +21,8 @@ int main(int argc, const char* argv[]) {
 
   for (int i = 1; i < argc; ++i) {
     std::wstring filename = base::SysNativeMBToWide(argv[i]);
-    if (!file_util::EvictFileFromSystemCache(filename.c_str())) {
+    FilePath path = FilePath::FromWStringHack(filename);
+    if (!file_util::EvictFileFromSystemCache(path)) {
       fprintf(stderr, "Failed to evict %s from cache -- is it a directory?\n",
               argv[i]);
     }
diff --git a/net/disk_cache/disk_cache_perftest.cc b/net/disk_cache/disk_cache_perftest.cc
index ecae2c3..08d0374 100644
--- a/net/disk_cache/disk_cache_perftest.cc
+++ b/net/disk_cache/disk_cache_perftest.cc
@@ -2,17 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <fcntl.h>
-
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/perftimer.h"
-#if defined(OS_WIN)
-#include "base/scoped_handle.h"
-#endif
 #include "base/string_util.h"
+#include "base/test_file_util.h"
 #include "base/timer.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/block_files.h"
@@ -32,62 +29,6 @@ typedef PlatformTest DiskCacheTest;
 
 namespace {
 
-bool EvictFileFromSystemCache(const wchar_t* name) {
-#if defined(OS_WIN)
-  // Overwrite it with no buffering.
-  ScopedHandle file(CreateFile(name, GENERIC_READ | GENERIC_WRITE,
-                               FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
-                               OPEN_EXISTING, FILE_FLAG_NO_BUFFERING, NULL));
-  if (!file.IsValid())
-    return false;
-
-  // Execute in chunks. It could be optimized. We want to do few of these since
-  // these opterations will be slow without the cache.
-  char buffer[128 * 1024];
-  int total_bytes = 0;
-  DWORD bytes_read;
-  for (;;) {
-    if (!ReadFile(file, buffer, sizeof(buffer), &bytes_read, NULL))
-      return false;
-    if (bytes_read == 0)
-      break;
-
-    bool final = false;
-    if (bytes_read < sizeof(buffer))
-      final = true;
-
-    DWORD to_write = final ? sizeof(buffer) : bytes_read;
-
-    DWORD actual;
-    SetFilePointer(file, total_bytes, 0, FILE_BEGIN);
-    if (!WriteFile(file, buffer, to_write, &actual, NULL))
-      return false;
-    total_bytes += bytes_read;
-
-    if (final) {
-      SetFilePointer(file, total_bytes, 0, FILE_BEGIN);
-      SetEndOfFile(file);
-      break;
-    }
-  }
-  return true;
-#elif defined(OS_LINUX)
-  int fd = open(WideToUTF8(std::wstring(name)).c_str(), O_RDONLY);
-  if (fd < 0)
-    return false;
-  if (fdatasync(fd) != 0)
-    return false;
-  if (posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED) != 0)
-    return false;
-  close(fd);
-  return true;
-#else
-  // TODO(port): Mac has its own way to do this.
-  NOTIMPLEMENTED();
-  return false;
-#endif
-}
-
 struct TestEntry {
   std::string key;
   int data_len;
@@ -214,9 +155,10 @@ TEST_F(DiskCacheTest, Hash) {
 TEST_F(DiskCacheTest, CacheBackendPerformance) {
   MessageLoopForIO message_loop;
 
-  std::wstring path = GetCachePath();
-  ASSERT_TRUE(DeleteCache(path.c_str()));
-  disk_cache::Backend* cache = disk_cache::CreateCacheBackend(path, false, 0);
+  std::wstring path_wstring = GetCachePath();
+  ASSERT_TRUE(DeleteCache(path_wstring.c_str()));
+  disk_cache::Backend* cache = disk_cache::CreateCacheBackend(path_wstring,
+                                                              false, 0);
   ASSERT_TRUE(NULL != cache);
 
   int seed = static_cast<int>(Time::Now().ToInternalValue());
@@ -231,27 +173,20 @@ TEST_F(DiskCacheTest, CacheBackendPerformance) {
   MessageLoop::current()->RunAllPending();
   delete cache;
 
-  std::wstring filename(path);
-  file_util::AppendToPath(&filename, L"index");
-  ASSERT_TRUE(EvictFileFromSystemCache(filename.c_str()));
-
-  filename = path;
-  file_util::AppendToPath(&filename, L"data_0");
-  ASSERT_TRUE(EvictFileFromSystemCache(filename.c_str()));
-
-  filename = path;
-  file_util::AppendToPath(&filename, L"data_1");
-  ASSERT_TRUE(EvictFileFromSystemCache(filename.c_str()));
-
-  filename = path;
-  file_util::AppendToPath(&filename, L"data_2");
-  ASSERT_TRUE(EvictFileFromSystemCache(filename.c_str()));
+  FilePath path = FilePath::FromWStringHack(path_wstring);
 
-  filename = path;
-  file_util::AppendToPath(&filename, L"data_3");
-  ASSERT_TRUE(EvictFileFromSystemCache(filename.c_str()));
+  ASSERT_TRUE(file_util::EvictFileFromSystemCache(
+              path.Append(FILE_PATH_LITERAL("index"))));
+  ASSERT_TRUE(file_util::EvictFileFromSystemCache(
+              path.Append(FILE_PATH_LITERAL("data_0"))));
+  ASSERT_TRUE(file_util::EvictFileFromSystemCache(
+              path.Append(FILE_PATH_LITERAL("data_1"))));
+  ASSERT_TRUE(file_util::EvictFileFromSystemCache(
+              path.Append(FILE_PATH_LITERAL("data_2"))));
+  ASSERT_TRUE(file_util::EvictFileFromSystemCache(
+              path.Append(FILE_PATH_LITERAL("data_3"))));
 
-  cache = disk_cache::CreateCacheBackend(path, false, 0);
+  cache = disk_cache::CreateCacheBackend(path_wstring, false, 0);
   ASSERT_TRUE(NULL != cache);
 
   ret = TimeRead(num_entries, cache, entries, true);