| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: jmarantz@google.com (Joshua Marantz) |
| // |
| // CPU: Intel Ivybridge with HyperThreading (6 cores) dL1:32KB dL2:256KB dL3:12MB // NOLINT |
| // Benchmark Time(ns) CPU(ns) Iterations |
| // -------------------------------------------------------------- |
| // BM_RewriteDriverConstruction 36496 36538 19067 |
| // BM_EmptyFilter 4355548 4397615 154 |
| // |
| // Thus, about 4 ms per 35k file, running all filters. |
| // |
| // Disclaimer: comparing runs over time and across different machines |
| // can be misleading. When contemplating an algorithm change, always do |
| // interleaved runs with the old & new algorithm. |
| |
| #include <memory> |
| |
| #include "net/instaweb/rewriter/public/rewrite_driver.h" |
| |
| #include "net/instaweb/http/public/mock_url_fetcher.h" |
| #include "net/instaweb/http/public/request_context.h" |
| #include "net/instaweb/rewriter/public/critical_selector_finder.h" |
| #include "net/instaweb/rewriter/public/process_context.h" |
| #include "net/instaweb/rewriter/public/rewrite_driver_factory.h" |
| #include "net/instaweb/rewriter/public/rewrite_options.h" |
| #include "net/instaweb/rewriter/public/server_context.h" |
| #include "net/instaweb/rewriter/public/test_rewrite_driver_factory.h" |
| #include "net/instaweb/util/public/mock_property_page.h" |
| #include "pagespeed/kernel/base/benchmark.h" |
| #include "pagespeed/kernel/base/string.h" |
| #include "pagespeed/kernel/base/string_util.h" |
| #include "pagespeed/kernel/http/user_agent_matcher.h" |
| #include "pagespeed/opt/http/property_cache.h" |
| |
| namespace net_instaweb { |
| namespace { |
| |
| ProcessContext process_context; |
| |
| class SpeedTestContext { |
| public: |
| SpeedTestContext() { |
| StopBenchmarkTiming(); |
| RewriteDriverFactory::Initialize(); |
| factory_.reset(new TestRewriteDriverFactory( |
| process_context, "/tmp", &fetcher_)); |
| TestRewriteDriverFactory::InitStats(factory_->statistics()); |
| server_context_ = factory_->CreateServerContext(); |
| StartBenchmarkTiming(); |
| } |
| |
| ~SpeedTestContext() { |
| factory_.reset(); // Must precede ProcessContext destruction. |
| RewriteDriverFactory::Terminate(); |
| } |
| |
| RewriteDriver* NewDriver(RewriteOptions* options) { |
| return server_context_->NewCustomRewriteDriver( |
| options, RequestContext::NewTestRequestContext( |
| factory_->thread_system())); |
| } |
| |
| TestRewriteDriverFactory* factory() { return factory_.get(); } |
| ServerContext* server_context() { return server_context_; } |
| |
| // Setup statistics for the given cohort and add it to the give PropertyCache. |
| const PropertyCache::Cohort* SetupCohort( |
| PropertyCache* cache, const GoogleString& cohort) { |
| return factory_->SetupCohort(cache, cohort); |
| } |
| |
| // Returns a new mock property page for the page property cache. |
| MockPropertyPage* NewMockPage(StringPiece url) { |
| return new MockPropertyPage( |
| server_context_->thread_system(), |
| server_context_->page_property_cache(), |
| url, "hash", |
| UserAgentMatcher::DeviceTypeSuffix(UserAgentMatcher::kDesktop)); |
| } |
| |
| private: |
| MockUrlFetcher fetcher_; |
| std::unique_ptr<TestRewriteDriverFactory> factory_; |
| ServerContext* server_context_; |
| }; |
| |
| static void BM_RewriteDriverConstruction(int iters) { |
| SpeedTestContext speed_test_context; |
| for (int i = 0; i < iters; ++i) { |
| RewriteOptions* options = new RewriteOptions( |
| speed_test_context.factory()->thread_system()); |
| options->SetRewriteLevel(RewriteOptions::kAllFilters); |
| RewriteDriver* driver = speed_test_context.NewDriver(options); |
| driver->Cleanup(); |
| } |
| } |
| BENCHMARK(BM_RewriteDriverConstruction); |
| |
| // This measures the speed of the HTML parsing & filter dispatch mechanism. |
| static void BM_EmptyFilter(int iters) { |
| SpeedTestContext speed_test_context; |
| |
| StopBenchmarkTiming(); |
| |
| // Set up the cohorts which are needed for some filters to operate properly. |
| ServerContext* server_context = speed_test_context.server_context(); |
| PropertyCache* page_property_cache = server_context->page_property_cache(); |
| const PropertyCache::Cohort* beacon_cohort = |
| speed_test_context.SetupCohort(page_property_cache, |
| RewriteDriver::kBeaconCohort); |
| server_context->set_beacon_cohort(beacon_cohort); |
| const PropertyCache::Cohort* dom_cohort = |
| speed_test_context.SetupCohort(page_property_cache, |
| RewriteDriver::kDomCohort); |
| server_context->set_dom_cohort(dom_cohort); |
| |
| // Set up the driver to enable all filters. |
| std::unique_ptr<RewriteOptions> options(new RewriteOptions( |
| speed_test_context.factory()->thread_system())); |
| options->SetRewriteLevel(RewriteOptions::kAllFilters); |
| |
| GoogleString html; |
| for (int i = 0; i < 1000; ++i) { |
| html += "<div id='x' class='y'> x y z </div>"; // 35 bytes |
| } |
| |
| StartBenchmarkTiming(); |
| |
| for (int i = 0; i < iters; ++i) { |
| RewriteDriver* driver = speed_test_context.NewDriver(options->Clone()); |
| |
| // Critical css needs its finder and pcache to work, and of course we |
| // don't want to accumulate everything in memory after every file, so we |
| // set it up fresh. |
| driver->set_property_page(speed_test_context.NewMockPage( |
| "http://example.com")); |
| page_property_cache->Read(driver->property_page()); |
| |
| // Set up and register a beacon finder. |
| CriticalSelectorFinder* finder = new BeaconCriticalSelectorFinder( |
| server_context->beacon_cohort(), |
| speed_test_context.factory()->nonce_generator(), |
| server_context->statistics()); |
| server_context->set_critical_selector_finder(finder); |
| |
| driver->StartParse("http://example.com/index.html"); |
| driver->ParseText("<html><head></head><body>"); |
| driver->Flush(); |
| driver->ParseText(html); // 35k bytes |
| driver->Flush(); |
| driver->ParseText("</body></html>"); |
| driver->FinishParse(); |
| } |
| } |
| BENCHMARK(BM_EmptyFilter); |
| |
| } // namespace |
| } // namespace net_instaweb |