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d0c227ccfd
* Add API to benchmark allowing for custom context to be added Fixes #525 * add docs * Add context flag output to JSON reporter * Plumb everything into the global context. * Add googletests for custom context * update docs with duplicate key behaviour
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "benchmark/benchmark.h"
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#include "timers.h"
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#include <cstdlib>
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#include <iostream>
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#include <map>
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#include <string>
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#include <tuple>
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#include <vector>
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#include "check.h"
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#include "string_util.h"
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namespace benchmark {
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namespace internal {
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extern std::map<std::string, std::string>* global_context;
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}
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BenchmarkReporter::BenchmarkReporter()
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: output_stream_(&std::cout), error_stream_(&std::cerr) {}
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BenchmarkReporter::~BenchmarkReporter() {}
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void BenchmarkReporter::PrintBasicContext(std::ostream *out,
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Context const &context) {
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CHECK(out) << "cannot be null";
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auto &Out = *out;
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Out << LocalDateTimeString() << "\n";
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if (context.executable_name)
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Out << "Running " << context.executable_name << "\n";
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const CPUInfo &info = context.cpu_info;
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Out << "Run on (" << info.num_cpus << " X "
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<< (info.cycles_per_second / 1000000.0) << " MHz CPU "
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<< ((info.num_cpus > 1) ? "s" : "") << ")\n";
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if (info.caches.size() != 0) {
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Out << "CPU Caches:\n";
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for (auto &CInfo : info.caches) {
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Out << " L" << CInfo.level << " " << CInfo.type << " "
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<< (CInfo.size / 1024) << " KiB";
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if (CInfo.num_sharing != 0)
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Out << " (x" << (info.num_cpus / CInfo.num_sharing) << ")";
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Out << "\n";
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}
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}
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if (!info.load_avg.empty()) {
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Out << "Load Average: ";
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for (auto It = info.load_avg.begin(); It != info.load_avg.end();) {
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Out << StrFormat("%.2f", *It++);
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if (It != info.load_avg.end()) Out << ", ";
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}
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Out << "\n";
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}
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if (internal::global_context != nullptr) {
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for (const auto& kv: *internal::global_context) {
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Out << kv.first << ": " << kv.second << "\n";
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}
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}
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if (CPUInfo::Scaling::ENABLED == info.scaling) {
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Out << "***WARNING*** CPU scaling is enabled, the benchmark "
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"real time measurements may be noisy and will incur extra "
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"overhead.\n";
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}
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#ifndef NDEBUG
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Out << "***WARNING*** Library was built as DEBUG. Timings may be "
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"affected.\n";
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#endif
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}
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// No initializer because it's already initialized to NULL.
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const char *BenchmarkReporter::Context::executable_name;
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BenchmarkReporter::Context::Context()
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: cpu_info(CPUInfo::Get()), sys_info(SystemInfo::Get()) {}
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std::string BenchmarkReporter::Run::benchmark_name() const {
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std::string name = run_name.str();
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if (run_type == RT_Aggregate) {
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name += "_" + aggregate_name;
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}
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return name;
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}
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double BenchmarkReporter::Run::GetAdjustedRealTime() const {
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double new_time = real_accumulated_time * GetTimeUnitMultiplier(time_unit);
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if (iterations != 0) new_time /= static_cast<double>(iterations);
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return new_time;
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}
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double BenchmarkReporter::Run::GetAdjustedCPUTime() const {
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double new_time = cpu_accumulated_time * GetTimeUnitMultiplier(time_unit);
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if (iterations != 0) new_time /= static_cast<double>(iterations);
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return new_time;
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}
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} // end namespace benchmark
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