benchmark/net/instaweb/rewriter/domain_lawyer_speed_test.cc

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

//
// CPU: Intel Sandybridge with HyperThreading (6 cores) dL1:32KB dL2:256KB
// Benchmark                              Time(ns)    CPU(ns) Iterations
// ---------------------------------------------------------------------
// BM_DomainLawyerIsAuthorizedAllowStar        398        398    1707317
// BM_DomainLawyerIsAuthorizedAllowAll           3          3  259259259
//
// 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 "benchmark/benchmark.h"
#include "net/instaweb/rewriter/public/domain_lawyer.h"
#include "pagespeed/kernel/base/null_message_handler.h"
#include "pagespeed/kernel/http/google_url.h"

void RunIsDomainAuthorizedIters(const net_instaweb::DomainLawyer& lawyer,
                                benchmark::State& state) {
  net_instaweb::GoogleUrl base_url("http://www.x.com/a/b/c/d/e/f");
  net_instaweb::GoogleUrl in_url("http://www.y.com/a/b/c/d/e/f");
  for (int i = 0; i < state.iterations(); ++i) {
    lawyer.IsDomainAuthorized(base_url, in_url);
  }
}

static void BM_DomainLawyerIsAuthorizedAllowStar(benchmark::State& state) {
  net_instaweb::NullMessageHandler handler;
  net_instaweb::DomainLawyer lawyer;
  lawyer.AddDomain("http://*", &handler);
  RunIsDomainAuthorizedIters(lawyer, state);
}

static void BM_DomainLawyerIsAuthorizedAllowAll(benchmark::State& state) {
  net_instaweb::NullMessageHandler handler;
  net_instaweb::DomainLawyer lawyer;
  lawyer.AddDomain("*", &handler);
  RunIsDomainAuthorizedIters(lawyer, state);
}

BENCHMARK(BM_DomainLawyerIsAuthorizedAllowStar);
BENCHMARK(BM_DomainLawyerIsAuthorizedAllowAll);