mirror of
https://gitee.com/openharmony/third_party_benchmark
synced 2024-11-30 11:00:29 +00:00
Merge branch 'ismaelJimenez-added_lambdas'
This commit is contained in:
Dominic Hamon
commit
2d088a9f2d
@ -142,6 +142,14 @@ BENCHMARK(BM_StringCompare)
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->RangeMultiplier(2)->Range(1<<10, 1<<18)->Complexity();
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```
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The following code will specify asymptotic complexity with a lambda function,
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that might be used to customize high-order term calculation.
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```c++
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BENCHMARK(BM_StringCompare)->RangeMultiplier(2)
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->Range(1<<10, 1<<18)->Complexity([](int n)->double{return n; });
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```
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### Templated benchmarks
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Templated benchmarks work the same way: This example produces and consumes
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messages of size `sizeof(v)` `range_x` times. It also outputs throughput in the
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@ -247,9 +247,14 @@ enum BigO {
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oNCubed,
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oLogN,
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oNLogN,
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oAuto
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oAuto,
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oLambda
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};
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// BigOFunc is passed to a benchmark in order to specify the asymptotic
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// computational complexity for the benchmark.
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typedef double(BigOFunc)(int);
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// State is passed to a running Benchmark and contains state for the
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// benchmark to use.
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class State {
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@ -257,24 +262,24 @@ public:
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State(size_t max_iters, bool has_x, int x, bool has_y, int y,
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int thread_i, int n_threads);
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// Returns true iff the benchmark should continue through another iteration.
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// Returns true if the benchmark should continue through another iteration.
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// NOTE: A benchmark may not return from the test until KeepRunning() has
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// returned false.
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bool KeepRunning() {
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if (BENCHMARK_BUILTIN_EXPECT(!started_, false)) {
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assert(!finished_);
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started_ = true;
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ResumeTiming();
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assert(!finished_);
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started_ = true;
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ResumeTiming();
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}
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bool const res = total_iterations_++ < max_iterations;
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if (BENCHMARK_BUILTIN_EXPECT(!res, false)) {
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assert(started_ && (!finished_ || error_occurred_));
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if (!error_occurred_) {
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PauseTiming();
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}
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// Total iterations now is one greater than max iterations. Fix this.
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total_iterations_ = max_iterations;
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finished_ = true;
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assert(started_ && (!finished_ || error_occurred_));
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if (!error_occurred_) {
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PauseTiming();
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}
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// Total iterations now is one greater than max iterations. Fix this.
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total_iterations_ = max_iterations;
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finished_ = true;
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}
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return res;
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}
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@ -358,7 +363,7 @@ public:
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// family benchmark, then current benchmark will be part of the computation and complexity_n will
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// represent the length of N.
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BENCHMARK_ALWAYS_INLINE
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void SetComplexityN(size_t complexity_n) {
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void SetComplexityN(int complexity_n) {
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complexity_n_ = complexity_n;
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}
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@ -439,7 +444,7 @@ private:
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size_t bytes_processed_;
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size_t items_processed_;
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size_t complexity_n_;
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int complexity_n_;
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public:
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// FIXME: Make this private somehow.
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@ -538,6 +543,10 @@ public:
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// the asymptotic computational complexity will be shown on the output.
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Benchmark* Complexity(BigO complexity = benchmark::oAuto);
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// Set the asymptotic computational complexity for the benchmark. If called
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// the asymptotic computational complexity will be shown on the output.
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Benchmark* Complexity(BigOFunc* complexity);
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// Support for running multiple copies of the same benchmark concurrently
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// in multiple threads. This may be useful when measuring the scaling
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// of some piece of code.
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@ -20,7 +20,7 @@
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#include <utility>
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#include <vector>
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#include "benchmark_api.h" // For forward declaration of BenchmarkReporter
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#include "benchmark_api.h" // For forward declaration of BenchmarkReporter
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namespace benchmark {
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@ -85,7 +85,8 @@ class BenchmarkReporter {
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double max_heapbytes_used;
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// Keep track of arguments to compute asymptotic complexity
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BigO complexity;
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BigO complexity;
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BigOFunc* complexity_lambda;
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int complexity_n;
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// Inform print function whether the current run is a complexity report
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@ -147,7 +148,7 @@ class BenchmarkReporter {
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// REQUIRES: 'out' is non-null.
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static void PrintBasicContext(std::ostream* out, Context const& context);
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private:
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private:
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std::ostream* output_stream_;
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std::ostream* error_stream_;
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};
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@ -159,31 +160,31 @@ class ConsoleReporter : public BenchmarkReporter {
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virtual bool ReportContext(const Context& context);
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virtual void ReportRuns(const std::vector<Run>& reports);
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protected:
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protected:
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virtual void PrintRunData(const Run& report);
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size_t name_field_width_;
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};
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class JSONReporter : public BenchmarkReporter {
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public:
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public:
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JSONReporter() : first_report_(true) {}
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virtual bool ReportContext(const Context& context);
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virtual void ReportRuns(const std::vector<Run>& reports);
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virtual void Finalize();
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private:
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private:
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void PrintRunData(const Run& report);
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bool first_report_;
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};
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class CSVReporter : public BenchmarkReporter {
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public:
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public:
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virtual bool ReportContext(const Context& context);
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virtual void ReportRuns(const std::vector<Run>& reports);
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private:
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private:
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void PrintRunData(const Run& report);
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};
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@ -200,7 +201,7 @@ inline const char* GetTimeUnitString(TimeUnit unit) {
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}
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inline double GetTimeUnitMultiplier(TimeUnit unit) {
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switch (unit) {
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switch (unit) {
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case kMillisecond:
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return 1e3;
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case kMicrosecond:
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@ -211,5 +212,5 @@ inline double GetTimeUnitMultiplier(TimeUnit unit) {
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}
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}
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} // end namespace benchmark
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#endif // BENCHMARK_REPORTER_H_
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} // end namespace benchmark
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#endif // BENCHMARK_REPORTER_H_
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@ -130,7 +130,7 @@ struct ThreadStats {
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ThreadStats() : bytes_processed(0), items_processed(0), complexity_n(0) {}
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int64_t bytes_processed;
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int64_t items_processed;
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int complexity_n;
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int complexity_n;
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};
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// Timer management class
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@ -287,7 +287,7 @@ class TimerManager {
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};
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phase_condition_.wait(ml.native_handle(), cb);
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if (phase_number_ > phase_number_cp)
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return false;
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return false;
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// else (running_threads_ == entered_) and we are the last thread.
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}
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// Last thread has reached the barrier
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@ -317,6 +317,7 @@ struct Benchmark::Instance {
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bool use_real_time;
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bool use_manual_time;
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BigO complexity;
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BigOFunc* complexity_lambda;
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bool last_benchmark_instance;
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int repetitions;
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double min_time;
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@ -362,6 +363,7 @@ public:
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void UseRealTime();
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void UseManualTime();
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void Complexity(BigO complexity);
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void ComplexityLambda(BigOFunc* complexity);
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void Threads(int t);
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void ThreadRange(int min_threads, int max_threads);
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void ThreadPerCpu();
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@ -382,6 +384,7 @@ private:
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bool use_real_time_;
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bool use_manual_time_;
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BigO complexity_;
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BigOFunc* complexity_lambda_;
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std::vector<int> thread_counts_;
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BenchmarkImp& operator=(BenchmarkImp const&);
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@ -446,6 +449,7 @@ bool BenchmarkFamilies::FindBenchmarks(
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instance.use_real_time = family->use_real_time_;
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instance.use_manual_time = family->use_manual_time_;
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instance.complexity = family->complexity_;
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instance.complexity_lambda = family->complexity_lambda_;
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instance.threads = num_threads;
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instance.multithreaded = !(family->thread_counts_.empty());
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@ -573,6 +577,10 @@ void BenchmarkImp::Complexity(BigO complexity){
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complexity_ = complexity;
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}
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void BenchmarkImp::ComplexityLambda(BigOFunc* complexity) {
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complexity_lambda_ = complexity;
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}
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void BenchmarkImp::Threads(int t) {
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CHECK_GT(t, 0);
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thread_counts_.push_back(t);
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@ -697,6 +705,12 @@ Benchmark* Benchmark::Complexity(BigO complexity) {
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return this;
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}
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Benchmark* Benchmark::Complexity(BigOFunc* complexity) {
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imp_->Complexity(oLambda);
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imp_->ComplexityLambda(complexity);
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return this;
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}
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Benchmark* Benchmark::Threads(int t) {
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imp_->Threads(t);
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return this;
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@ -855,6 +869,7 @@ void RunBenchmark(const benchmark::internal::Benchmark::Instance& b,
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report.items_per_second = items_per_second;
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report.complexity_n = total.complexity_n;
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report.complexity = b.complexity;
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report.complexity_lambda = b.complexity_lambda;
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if(report.complexity != oNone)
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complexity_reports.push_back(report);
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}
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@ -884,7 +899,7 @@ void RunBenchmark(const benchmark::internal::Benchmark::Instance& b,
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}
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std::vector<BenchmarkReporter::Run> additional_run_stats = ComputeStats(reports);
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reports.insert(reports.end(), additional_run_stats.begin(),
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additional_run_stats.end());
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additional_run_stats.end());
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if((b.complexity != oNone) && b.last_benchmark_instance) {
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additional_run_stats = ComputeBigO(complexity_reports);
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@ -17,31 +17,30 @@
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#include "benchmark/benchmark_api.h"
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#include "complexity.h"
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#include "check.h"
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#include "stat.h"
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#include <cmath>
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#include <algorithm>
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#include <functional>
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#include <cmath>
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#include "check.h"
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#include "complexity.h"
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#include "stat.h"
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namespace benchmark {
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// Internal function to calculate the different scalability forms
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std::function<double(int)> FittingCurve(BigO complexity) {
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BigOFunc* FittingCurve(BigO complexity) {
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switch (complexity) {
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case oN:
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return [](int n) {return n; };
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return [](int n) -> double { return n; };
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case oNSquared:
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return [](int n) {return n*n; };
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return [](int n) -> double { return n * n; };
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case oNCubed:
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return [](int n) {return n*n*n; };
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return [](int n) -> double { return n * n * n; };
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case oLogN:
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return [](int n) {return log2(n); };
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return [](int n) { return log2(n); };
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case oNLogN:
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return [](int n) {return n * log2(n); };
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return [](int n) { return n * log2(n); };
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case o1:
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default:
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return [](int) {return 1; };
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return [](int) { return 1.0; };
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}
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}
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@ -49,19 +48,19 @@ std::function<double(int)> FittingCurve(BigO complexity) {
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std::string GetBigOString(BigO complexity) {
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switch (complexity) {
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case oN:
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return "* N";
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return "N";
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case oNSquared:
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return "* N**2";
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return "N^2";
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case oNCubed:
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return "* N**3";
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return "N^3";
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case oLogN:
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return "* lgN";
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return "lgN";
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case oNLogN:
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return "* NlgN";
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return "NlgN";
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case o1:
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return "* 1";
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return "(1)";
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default:
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return "";
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return "f(N)";
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}
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}
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@ -75,21 +74,9 @@ std::string GetBigOString(BigO complexity) {
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// For a deeper explanation on the algorithm logic, look the README file at
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// http://github.com/ismaelJimenez/Minimal-Cpp-Least-Squared-Fit
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// This interface is currently not used from the oustide, but it has been
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// provided for future upgrades. If in the future it is not needed to support
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// Cxx03, then all the calculations could be upgraded to use lambdas because
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// they are more powerful and provide a cleaner inferface than enumerators,
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// but complete implementation with lambdas will not work for Cxx03
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// (e.g. lack of std::function).
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// In case lambdas are implemented, the interface would be like :
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// -> Complexity([](int n) {return n;};)
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// and any arbitrary and valid equation would be allowed, but the option to
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// calculate the best fit to the most common scalability curves will still
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// be kept.
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LeastSq CalculateLeastSq(const std::vector<int>& n,
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const std::vector<double>& time,
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std::function<double(int)> fitting_curve) {
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LeastSq MinimalLeastSq(const std::vector<int>& n,
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const std::vector<double>& time,
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BigOFunc* fitting_curve) {
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double sigma_gn = 0.0;
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double sigma_gn_squared = 0.0;
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double sigma_time = 0.0;
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@ -105,6 +92,7 @@ LeastSq CalculateLeastSq(const std::vector<int>& n,
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}
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LeastSq result;
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result.complexity = oLambda;
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// Calculate complexity.
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result.coef = sigma_time_gn / sigma_gn_squared;
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@ -134,29 +122,29 @@ LeastSq MinimalLeastSq(const std::vector<int>& n,
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const std::vector<double>& time,
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const BigO complexity) {
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CHECK_EQ(n.size(), time.size());
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CHECK_GE(n.size(), 2); // Do not compute fitting curve is less than two benchmark runs are given
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CHECK_GE(n.size(), 2); // Do not compute fitting curve is less than two
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// benchmark runs are given
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CHECK_NE(complexity, oNone);
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LeastSq best_fit;
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if(complexity == oAuto) {
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std::vector<BigO> fit_curves = {
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oLogN, oN, oNLogN, oNSquared, oNCubed };
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if (complexity == oAuto) {
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std::vector<BigO> fit_curves = {oLogN, oN, oNLogN, oNSquared, oNCubed};
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// Take o1 as default best fitting curve
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best_fit = CalculateLeastSq(n, time, FittingCurve(o1));
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best_fit = MinimalLeastSq(n, time, FittingCurve(o1));
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best_fit.complexity = o1;
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// Compute all possible fitting curves and stick to the best one
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for (const auto& fit : fit_curves) {
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LeastSq current_fit = CalculateLeastSq(n, time, FittingCurve(fit));
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LeastSq current_fit = MinimalLeastSq(n, time, FittingCurve(fit));
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if (current_fit.rms < best_fit.rms) {
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best_fit = current_fit;
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best_fit.complexity = fit;
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}
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}
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} else {
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best_fit = CalculateLeastSq(n, time, FittingCurve(complexity));
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best_fit = MinimalLeastSq(n, time, FittingCurve(complexity));
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best_fit.complexity = complexity;
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}
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@ -164,14 +152,13 @@ LeastSq MinimalLeastSq(const std::vector<int>& n,
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}
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std::vector<BenchmarkReporter::Run> ComputeStats(
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const std::vector<BenchmarkReporter::Run>& reports)
|
||||
{
|
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const std::vector<BenchmarkReporter::Run>& reports) {
|
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typedef BenchmarkReporter::Run Run;
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std::vector<Run> results;
|
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auto error_count = std::count_if(
|
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reports.begin(), reports.end(),
|
||||
[](Run const& run) {return run.error_occurred;});
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auto error_count =
|
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std::count_if(reports.begin(), reports.end(),
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||||
[](Run const& run) { return run.error_occurred; });
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||||
|
||||
if (reports.size() - error_count < 2) {
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||||
// We don't report aggregated data if there was a single run.
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@ -190,12 +177,11 @@ std::vector<BenchmarkReporter::Run> ComputeStats(
|
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for (Run const& run : reports) {
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CHECK_EQ(reports[0].benchmark_name, run.benchmark_name);
|
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CHECK_EQ(run_iterations, run.iterations);
|
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if (run.error_occurred)
|
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continue;
|
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if (run.error_occurred) continue;
|
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real_accumulated_time_stat +=
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Stat1_d(run.real_accumulated_time/run.iterations, run.iterations);
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Stat1_d(run.real_accumulated_time / run.iterations, run.iterations);
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cpu_accumulated_time_stat +=
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Stat1_d(run.cpu_accumulated_time/run.iterations, run.iterations);
|
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Stat1_d(run.cpu_accumulated_time / run.iterations, run.iterations);
|
||||
items_per_second_stat += Stat1_d(run.items_per_second, run.iterations);
|
||||
bytes_per_second_stat += Stat1_d(run.bytes_per_second, run.iterations);
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||||
}
|
||||
@ -204,10 +190,10 @@ std::vector<BenchmarkReporter::Run> ComputeStats(
|
||||
Run mean_data;
|
||||
mean_data.benchmark_name = reports[0].benchmark_name + "_mean";
|
||||
mean_data.iterations = run_iterations;
|
||||
mean_data.real_accumulated_time = real_accumulated_time_stat.Mean() *
|
||||
run_iterations;
|
||||
mean_data.cpu_accumulated_time = cpu_accumulated_time_stat.Mean() *
|
||||
run_iterations;
|
||||
mean_data.real_accumulated_time =
|
||||
real_accumulated_time_stat.Mean() * run_iterations;
|
||||
mean_data.cpu_accumulated_time =
|
||||
cpu_accumulated_time_stat.Mean() * run_iterations;
|
||||
mean_data.bytes_per_second = bytes_per_second_stat.Mean();
|
||||
mean_data.items_per_second = items_per_second_stat.Mean();
|
||||
|
||||
@ -224,10 +210,8 @@ std::vector<BenchmarkReporter::Run> ComputeStats(
|
||||
stddev_data.benchmark_name = reports[0].benchmark_name + "_stddev";
|
||||
stddev_data.report_label = mean_data.report_label;
|
||||
stddev_data.iterations = 0;
|
||||
stddev_data.real_accumulated_time =
|
||||
real_accumulated_time_stat.StdDev();
|
||||
stddev_data.cpu_accumulated_time =
|
||||
cpu_accumulated_time_stat.StdDev();
|
||||
stddev_data.real_accumulated_time = real_accumulated_time_stat.StdDev();
|
||||
stddev_data.cpu_accumulated_time = cpu_accumulated_time_stat.StdDev();
|
||||
stddev_data.bytes_per_second = bytes_per_second_stat.StdDev();
|
||||
stddev_data.items_per_second = items_per_second_stat.StdDev();
|
||||
|
||||
@ -237,8 +221,7 @@ std::vector<BenchmarkReporter::Run> ComputeStats(
|
||||
}
|
||||
|
||||
std::vector<BenchmarkReporter::Run> ComputeBigO(
|
||||
const std::vector<BenchmarkReporter::Run>& reports)
|
||||
{
|
||||
const std::vector<BenchmarkReporter::Run>& reports) {
|
||||
typedef BenchmarkReporter::Run Run;
|
||||
std::vector<Run> results;
|
||||
|
||||
@ -252,19 +235,22 @@ std::vector<BenchmarkReporter::Run> ComputeBigO(
|
||||
// Populate the accumulators.
|
||||
for (const Run& run : reports) {
|
||||
n.push_back(run.complexity_n);
|
||||
real_time.push_back(run.real_accumulated_time/run.iterations);
|
||||
cpu_time.push_back(run.cpu_accumulated_time/run.iterations);
|
||||
real_time.push_back(run.real_accumulated_time / run.iterations);
|
||||
cpu_time.push_back(run.cpu_accumulated_time / run.iterations);
|
||||
}
|
||||
|
||||
LeastSq result_cpu = MinimalLeastSq(n, cpu_time, reports[0].complexity);
|
||||
LeastSq result_cpu;
|
||||
LeastSq result_real;
|
||||
|
||||
// result_cpu.complexity is passed as parameter to result_real because in case
|
||||
// reports[0].complexity is oAuto, the noise on the measured data could make
|
||||
// the best fit function of Cpu and Real differ. In order to solve this, we
|
||||
// take the best fitting function for the Cpu, and apply it to Real data.
|
||||
LeastSq result_real = MinimalLeastSq(n, real_time, result_cpu.complexity);
|
||||
|
||||
std::string benchmark_name = reports[0].benchmark_name.substr(0, reports[0].benchmark_name.find('/'));
|
||||
if (reports[0].complexity == oLambda) {
|
||||
result_cpu = MinimalLeastSq(n, cpu_time, reports[0].complexity_lambda);
|
||||
result_real = MinimalLeastSq(n, real_time, reports[0].complexity_lambda);
|
||||
} else {
|
||||
result_cpu = MinimalLeastSq(n, cpu_time, reports[0].complexity);
|
||||
result_real = MinimalLeastSq(n, real_time, result_cpu.complexity);
|
||||
}
|
||||
std::string benchmark_name =
|
||||
reports[0].benchmark_name.substr(0, reports[0].benchmark_name.find('/'));
|
||||
|
||||
// Get the data from the accumulator to BenchmarkReporter::Run's.
|
||||
Run big_o;
|
||||
|
||||
@ -60,11 +60,5 @@ struct LeastSq {
|
||||
// Function to return an string for the calculated complexity
|
||||
std::string GetBigOString(BigO complexity);
|
||||
|
||||
// Find the coefficient for the high-order term in the running time, by
|
||||
// minimizing the sum of squares of relative error.
|
||||
LeastSq MinimalLeastSq(const std::vector<int>& n,
|
||||
const std::vector<double>& time,
|
||||
const BigO complexity = oAuto);
|
||||
|
||||
} // end namespace benchmark
|
||||
#endif // COMPLEXITY_H_
|
||||
|
||||
@ -15,9 +15,9 @@
|
||||
#include "benchmark/reporter.h"
|
||||
#include "complexity.h"
|
||||
|
||||
#include <algorithm>
|
||||
#include <cstdint>
|
||||
#include <cstdio>
|
||||
#include <algorithm>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
#include <tuple>
|
||||
@ -62,8 +62,8 @@ void ConsoleReporter::ReportRuns(const std::vector<Run>& reports) {
|
||||
void ConsoleReporter::PrintRunData(const Run& result) {
|
||||
auto& Out = GetOutputStream();
|
||||
|
||||
auto name_color = (result.report_big_o || result.report_rms)
|
||||
? COLOR_BLUE : COLOR_GREEN;
|
||||
auto name_color =
|
||||
(result.report_big_o || result.report_rms) ? COLOR_BLUE : COLOR_GREEN;
|
||||
ColorPrintf(Out, name_color, "%-*s ", name_field_width_,
|
||||
result.benchmark_name.c_str());
|
||||
|
||||
@ -84,25 +84,25 @@ void ConsoleReporter::PrintRunData(const Run& result) {
|
||||
if (result.items_per_second > 0) {
|
||||
items = StrCat(" ", HumanReadableNumber(result.items_per_second),
|
||||
" items/s");
|
||||
}
|
||||
}
|
||||
|
||||
const double real_time = result.GetAdjustedRealTime();
|
||||
const double cpu_time = result.GetAdjustedCPUTime();
|
||||
|
||||
if(result.report_big_o) {
|
||||
std::string big_o = result.report_big_o ? GetBigOString(result.complexity) : "";
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.4f %s %10.4f %s ",
|
||||
real_time, big_o.c_str(), cpu_time, big_o.c_str());
|
||||
} else if(result.report_rms) {
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.0f %% %10.0f %% ",
|
||||
real_time * 100, cpu_time * 100);
|
||||
if (result.report_big_o) {
|
||||
std::string big_o = GetBigOString(result.complexity);
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.2f %s %10.2f %s ", real_time,
|
||||
big_o.c_str(), cpu_time, big_o.c_str());
|
||||
} else if (result.report_rms) {
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.0f %% %10.0f %% ", real_time * 100,
|
||||
cpu_time * 100);
|
||||
} else {
|
||||
const char* timeLabel = GetTimeUnitString(result.time_unit);
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.0f %s %10.0f %s ",
|
||||
real_time, timeLabel, cpu_time, timeLabel);
|
||||
ColorPrintf(Out, COLOR_YELLOW, "%10.0f %s %10.0f %s ", real_time, timeLabel,
|
||||
cpu_time, timeLabel);
|
||||
}
|
||||
|
||||
if(!result.report_big_o && !result.report_rms) {
|
||||
if (!result.report_big_o && !result.report_rms) {
|
||||
ColorPrintf(Out, COLOR_CYAN, "%10lld", result.iterations);
|
||||
}
|
||||
|
||||
|
||||
@ -13,9 +13,10 @@
|
||||
// limitations under the License.
|
||||
|
||||
#include "benchmark/reporter.h"
|
||||
#include "complexity.h"
|
||||
|
||||
#include <cstdint>
|
||||
#include <algorithm>
|
||||
#include <cstdint>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
#include <tuple>
|
||||
@ -79,7 +80,7 @@ void CSVReporter::PrintRunData(const Run & run) {
|
||||
}
|
||||
|
||||
// Do not print iteration on bigO and RMS report
|
||||
if(!run.report_big_o && !run.report_rms) {
|
||||
if (!run.report_big_o && !run.report_rms) {
|
||||
Out << run.iterations;
|
||||
}
|
||||
Out << ",";
|
||||
@ -87,8 +88,10 @@ void CSVReporter::PrintRunData(const Run & run) {
|
||||
Out << run.GetAdjustedRealTime() << ",";
|
||||
Out << run.GetAdjustedCPUTime() << ",";
|
||||
|
||||
// Do not print timeLabel on RMS report
|
||||
if(!run.report_rms) {
|
||||
// Do not print timeLabel on bigO and RMS report
|
||||
if (run.report_big_o) {
|
||||
Out << GetBigOString(run.complexity);
|
||||
} else if (!run.report_rms) {
|
||||
Out << GetTimeUnitString(run.time_unit);
|
||||
}
|
||||
Out << ",";
|
||||
@ -108,7 +111,7 @@ void CSVReporter::PrintRunData(const Run & run) {
|
||||
ReplaceAll(&label, "\"", "\"\"");
|
||||
Out << "\"" << label << "\"";
|
||||
}
|
||||
Out << ",,"; // for error_occurred and error_message
|
||||
Out << ",,"; // for error_occurred and error_message
|
||||
Out << '\n';
|
||||
}
|
||||
|
||||
|
||||
@ -13,9 +13,10 @@
|
||||
// limitations under the License.
|
||||
|
||||
#include "benchmark/reporter.h"
|
||||
#include "complexity.h"
|
||||
|
||||
#include <cstdint>
|
||||
#include <algorithm>
|
||||
#include <cstdint>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
#include <tuple>
|
||||
@ -99,24 +100,24 @@ void JSONReporter::ReportRuns(std::vector<Run> const& reports) {
|
||||
first_report_ = false;
|
||||
|
||||
for (auto it = reports.begin(); it != reports.end(); ++it) {
|
||||
out << indent << "{\n";
|
||||
PrintRunData(*it);
|
||||
out << indent << '}';
|
||||
auto it_cp = it;
|
||||
if (++it_cp != reports.end()) {
|
||||
out << ",\n";
|
||||
}
|
||||
out << indent << "{\n";
|
||||
PrintRunData(*it);
|
||||
out << indent << '}';
|
||||
auto it_cp = it;
|
||||
if (++it_cp != reports.end()) {
|
||||
out << ",\n";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void JSONReporter::Finalize() {
|
||||
// Close the list of benchmarks and the top level object.
|
||||
GetOutputStream() << "\n ]\n}\n";
|
||||
// Close the list of benchmarks and the top level object.
|
||||
GetOutputStream() << "\n ]\n}\n";
|
||||
}
|
||||
|
||||
void JSONReporter::PrintRunData(Run const& run) {
|
||||
std::string indent(6, ' ');
|
||||
std::ostream& out = GetOutputStream();
|
||||
std::string indent(6, ' ');
|
||||
std::ostream& out = GetOutputStream();
|
||||
out << indent
|
||||
<< FormatKV("name", run.benchmark_name)
|
||||
<< ",\n";
|
||||
@ -128,33 +129,50 @@ void JSONReporter::PrintRunData(Run const& run) {
|
||||
<< FormatKV("error_message", run.error_message)
|
||||
<< ",\n";
|
||||
}
|
||||
if(!run.report_big_o && !run.report_rms) {
|
||||
if (!run.report_big_o && !run.report_rms) {
|
||||
out << indent
|
||||
<< FormatKV("iterations", run.iterations)
|
||||
<< ",\n";
|
||||
}
|
||||
out << indent
|
||||
<< FormatKV("real_time", RoundDouble(run.GetAdjustedRealTime()))
|
||||
<< ",\n";
|
||||
out << indent
|
||||
<< FormatKV("cpu_time", RoundDouble(run.GetAdjustedCPUTime()));
|
||||
if(!run.report_rms) {
|
||||
out << indent
|
||||
<< FormatKV("real_time", RoundDouble(run.GetAdjustedRealTime()))
|
||||
<< ",\n";
|
||||
out << indent
|
||||
<< FormatKV("cpu_time", RoundDouble(run.GetAdjustedCPUTime()));
|
||||
out << ",\n" << indent
|
||||
<< FormatKV("time_unit", GetTimeUnitString(run.time_unit));
|
||||
}
|
||||
if (run.bytes_per_second > 0.0) {
|
||||
out << ",\n" << indent
|
||||
<< FormatKV("bytes_per_second", RoundDouble(run.bytes_per_second));
|
||||
}
|
||||
if (run.items_per_second > 0.0) {
|
||||
out << ",\n" << indent
|
||||
<< FormatKV("items_per_second", RoundDouble(run.items_per_second));
|
||||
}
|
||||
if (!run.report_label.empty()) {
|
||||
out << ",\n" << indent
|
||||
<< FormatKV("label", run.report_label);
|
||||
}
|
||||
out << '\n';
|
||||
} else if (run.report_big_o) {
|
||||
out << indent
|
||||
<< FormatKV("cpu_coefficient", RoundDouble(run.GetAdjustedCPUTime()))
|
||||
<< ",\n";
|
||||
out << indent
|
||||
<< FormatKV("real_coefficient", RoundDouble(run.GetAdjustedRealTime()))
|
||||
<< ",\n";
|
||||
out << indent
|
||||
<< FormatKV("big_o", GetBigOString(run.complexity))
|
||||
<< ",\n";
|
||||
out << indent
|
||||
<< FormatKV("time_unit", GetTimeUnitString(run.time_unit));
|
||||
} else if(run.report_rms) {
|
||||
out << indent
|
||||
<< FormatKV("rms", RoundDouble(run.GetAdjustedCPUTime()*100))
|
||||
<< '%';
|
||||
}
|
||||
if (run.bytes_per_second > 0.0) {
|
||||
out << ",\n"
|
||||
<< indent
|
||||
<< FormatKV("bytes_per_second", RoundDouble(run.bytes_per_second));
|
||||
}
|
||||
if (run.items_per_second > 0.0) {
|
||||
out << ",\n"
|
||||
<< indent
|
||||
<< FormatKV("items_per_second", RoundDouble(run.items_per_second));
|
||||
}
|
||||
if (!run.report_label.empty()) {
|
||||
out << ",\n"
|
||||
<< indent
|
||||
<< FormatKV("label", run.report_label);
|
||||
}
|
||||
out << '\n';
|
||||
}
|
||||
|
||||
} // end namespace benchmark
|
||||
} // end namespace benchmark
|
||||
|
||||
@ -1,12 +1,179 @@
|
||||
|
||||
#include "benchmark/benchmark_api.h"
|
||||
|
||||
#include <cstdlib>
|
||||
#include <string>
|
||||
#undef NDEBUG
|
||||
#include "benchmark/benchmark.h"
|
||||
#include "../src/check.h" // NOTE: check.h is for internal use only!
|
||||
#include "../src/re.h" // NOTE: re.h is for internal use only
|
||||
#include <cassert>
|
||||
#include <cstring>
|
||||
#include <iostream>
|
||||
#include <sstream>
|
||||
#include <vector>
|
||||
#include <map>
|
||||
#include <utility>
|
||||
#include <algorithm>
|
||||
|
||||
namespace {
|
||||
|
||||
// ========================================================================= //
|
||||
// -------------------------- Testing Case --------------------------------- //
|
||||
// ========================================================================= //
|
||||
|
||||
enum MatchRules {
|
||||
MR_Default, // Skip non-matching lines until a match is found.
|
||||
MR_Next // Match must occur on the next line.
|
||||
};
|
||||
|
||||
struct TestCase {
|
||||
std::string regex;
|
||||
int match_rule;
|
||||
|
||||
TestCase(std::string re, int rule = MR_Default) : regex(re), match_rule(rule) {}
|
||||
|
||||
void Check(std::stringstream& remaining_output) const {
|
||||
benchmark::Regex r;
|
||||
std::string err_str;
|
||||
r.Init(regex, &err_str);
|
||||
CHECK(err_str.empty()) << "Could not construct regex \"" << regex << "\""
|
||||
<< " got Error: " << err_str;
|
||||
|
||||
std::string line;
|
||||
while (remaining_output.eof() == false) {
|
||||
CHECK(remaining_output.good());
|
||||
std::getline(remaining_output, line);
|
||||
if (r.Match(line)) return;
|
||||
CHECK(match_rule != MR_Next) << "Expected line \"" << line
|
||||
<< "\" to match regex \"" << regex << "\"";
|
||||
}
|
||||
|
||||
CHECK(remaining_output.eof() == false)
|
||||
<< "End of output reached before match for regex \"" << regex
|
||||
<< "\" was found";
|
||||
}
|
||||
};
|
||||
|
||||
std::vector<TestCase> ConsoleOutputTests;
|
||||
std::vector<TestCase> JSONOutputTests;
|
||||
std::vector<TestCase> CSVOutputTests;
|
||||
|
||||
// ========================================================================= //
|
||||
// -------------------------- Test Helpers --------------------------------- //
|
||||
// ========================================================================= //
|
||||
|
||||
class TestReporter : public benchmark::BenchmarkReporter {
|
||||
public:
|
||||
TestReporter(std::vector<benchmark::BenchmarkReporter*> reps)
|
||||
: reporters_(reps) {}
|
||||
|
||||
virtual bool ReportContext(const Context& context) {
|
||||
bool last_ret = false;
|
||||
bool first = true;
|
||||
for (auto rep : reporters_) {
|
||||
bool new_ret = rep->ReportContext(context);
|
||||
CHECK(first || new_ret == last_ret)
|
||||
<< "Reports return different values for ReportContext";
|
||||
first = false;
|
||||
last_ret = new_ret;
|
||||
}
|
||||
return last_ret;
|
||||
}
|
||||
|
||||
virtual void ReportRuns(const std::vector<Run>& report) {
|
||||
for (auto rep : reporters_)
|
||||
rep->ReportRuns(report);
|
||||
}
|
||||
|
||||
virtual void Finalize() {
|
||||
for (auto rep : reporters_)
|
||||
rep->Finalize();
|
||||
}
|
||||
|
||||
private:
|
||||
std::vector<benchmark::BenchmarkReporter*> reporters_;
|
||||
};
|
||||
|
||||
|
||||
#define CONCAT2(x, y) x##y
|
||||
#define CONCAT(x, y) CONCAT2(x, y)
|
||||
|
||||
#define ADD_CASES(...) \
|
||||
int CONCAT(dummy, __LINE__) = AddCases(__VA_ARGS__)
|
||||
|
||||
int AddCases(std::vector<TestCase>* out, std::initializer_list<TestCase> const& v) {
|
||||
for (auto const& TC : v)
|
||||
out->push_back(TC);
|
||||
return 0;
|
||||
}
|
||||
|
||||
template <class First>
|
||||
std::string join(First f) { return f; }
|
||||
|
||||
template <class First, class ...Args>
|
||||
std::string join(First f, Args&&... args) {
|
||||
return std::string(std::move(f)) + "[ ]+" + join(std::forward<Args>(args)...);
|
||||
}
|
||||
|
||||
std::string dec_re = "[0-9]+\\.[0-9]+";
|
||||
|
||||
#define ADD_COMPLEXITY_CASES(...) \
|
||||
int CONCAT(dummy, __LINE__) = AddComplexityTest(__VA_ARGS__)
|
||||
|
||||
int AddComplexityTest(std::vector<TestCase>* console_out, std::vector<TestCase>* json_out,
|
||||
std::vector<TestCase>* csv_out, std::string big_o_test_name,
|
||||
std::string rms_test_name, std::string big_o) {
|
||||
std::string big_o_str = dec_re + " " + big_o;
|
||||
AddCases(console_out, {
|
||||
{join("^" + big_o_test_name + "", big_o_str, big_o_str) + "[ ]*$"},
|
||||
{join("^" + rms_test_name + "", "[0-9]+ %", "[0-9]+ %") + "[ ]*$"}
|
||||
});
|
||||
AddCases(json_out, {
|
||||
{"\"name\": \"" + big_o_test_name + "\",$"},
|
||||
{"\"cpu_coefficient\": [0-9]+,$", MR_Next},
|
||||
{"\"real_coefficient\": [0-9]{1,5},$", MR_Next},
|
||||
{"\"big_o\": \"" + big_o + "\",$", MR_Next},
|
||||
{"\"time_unit\": \"ns\"$", MR_Next},
|
||||
{"}", MR_Next},
|
||||
{"\"name\": \"" + rms_test_name + "\",$"},
|
||||
{"\"rms\": [0-9]+%$", MR_Next},
|
||||
{"}", MR_Next}
|
||||
});
|
||||
AddCases(csv_out, {
|
||||
{"^\"" + big_o_test_name + "\",," + dec_re + "," + dec_re + "," + big_o + ",,,,,$"},
|
||||
{"^\"" + rms_test_name + "\",," + dec_re + "," + dec_re + ",,,,,,$"}
|
||||
});
|
||||
return 0;
|
||||
}
|
||||
|
||||
} // end namespace
|
||||
|
||||
// ========================================================================= //
|
||||
// --------------------------- Testing BigO O(1) --------------------------- //
|
||||
// ========================================================================= //
|
||||
|
||||
void BM_Complexity_O1(benchmark::State& state) {
|
||||
while (state.KeepRunning()) {
|
||||
}
|
||||
state.SetComplexityN(state.range_x());
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O1) -> Range(1, 1<<18) -> Complexity(benchmark::o1);
|
||||
BENCHMARK(BM_Complexity_O1) -> Range(1, 1<<18) -> Complexity([](int){return 1.0; });
|
||||
BENCHMARK(BM_Complexity_O1) -> Range(1, 1<<18) -> Complexity();
|
||||
|
||||
const char* big_o_1_test_name = "BM_Complexity_O1_BigO";
|
||||
const char* rms_o_1_test_name = "BM_Complexity_O1_RMS";
|
||||
const char* enum_auto_big_o_1 = "\\([0-9]+\\)";
|
||||
const char* lambda_big_o_1 = "f\\(N\\)";
|
||||
|
||||
// Add enum tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_1_test_name, rms_o_1_test_name, enum_auto_big_o_1);
|
||||
|
||||
// Add lambda tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_1_test_name, rms_o_1_test_name, lambda_big_o_1);
|
||||
|
||||
// ========================================================================= //
|
||||
// --------------------------- Testing BigO O(N) --------------------------- //
|
||||
// ========================================================================= //
|
||||
|
||||
std::vector<int> ConstructRandomVector(int size) {
|
||||
std::vector<int> v;
|
||||
v.reserve(size);
|
||||
@ -16,22 +183,7 @@ std::vector<int> ConstructRandomVector(int size) {
|
||||
return v;
|
||||
}
|
||||
|
||||
std::map<int, int> ConstructRandomMap(int size) {
|
||||
std::map<int, int> m;
|
||||
for (int i = 0; i < size; ++i) {
|
||||
m.insert(std::make_pair(rand() % size, rand() % size));
|
||||
}
|
||||
return m;
|
||||
}
|
||||
|
||||
void BM_Complexity_O1(benchmark::State& state) {
|
||||
while (state.KeepRunning()) {
|
||||
}
|
||||
state.SetComplexityN(state.range_x());
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O1) -> Range(1, 1<<18) -> Complexity(benchmark::o1);
|
||||
|
||||
static void BM_Complexity_O_N(benchmark::State& state) {
|
||||
void BM_Complexity_O_N(benchmark::State& state) {
|
||||
auto v = ConstructRandomVector(state.range_x());
|
||||
const int item_not_in_vector = state.range_x()*2; // Test worst case scenario (item not in vector)
|
||||
while (state.KeepRunning()) {
|
||||
@ -40,50 +192,25 @@ static void BM_Complexity_O_N(benchmark::State& state) {
|
||||
state.SetComplexityN(state.range_x());
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity(benchmark::oN);
|
||||
BENCHMARK(BM_Complexity_O_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity([](int n) -> double{return n; });
|
||||
BENCHMARK(BM_Complexity_O_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity();
|
||||
|
||||
static void BM_Complexity_O_N_Squared(benchmark::State& state) {
|
||||
std::string s1(state.range_x(), '-');
|
||||
std::string s2(state.range_x(), '-');
|
||||
state.SetComplexityN(state.range_x());
|
||||
while (state.KeepRunning())
|
||||
for(char& c1 : s1) {
|
||||
for(char& c2 : s2) {
|
||||
benchmark::DoNotOptimize(c1 = 'a');
|
||||
benchmark::DoNotOptimize(c2 = 'b');
|
||||
}
|
||||
}
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O_N_Squared) -> Range(1, 1<<8) -> Complexity(benchmark::oNSquared);
|
||||
const char* big_o_n_test_name = "BM_Complexity_O_N_BigO";
|
||||
const char* rms_o_n_test_name = "BM_Complexity_O_N_RMS";
|
||||
const char* enum_auto_big_o_n = "N";
|
||||
const char* lambda_big_o_n = "f\\(N\\)";
|
||||
|
||||
static void BM_Complexity_O_N_Cubed(benchmark::State& state) {
|
||||
std::string s1(state.range_x(), '-');
|
||||
std::string s2(state.range_x(), '-');
|
||||
std::string s3(state.range_x(), '-');
|
||||
state.SetComplexityN(state.range_x());
|
||||
while (state.KeepRunning())
|
||||
for(char& c1 : s1) {
|
||||
for(char& c2 : s2) {
|
||||
for(char& c3 : s3) {
|
||||
benchmark::DoNotOptimize(c1 = 'a');
|
||||
benchmark::DoNotOptimize(c2 = 'b');
|
||||
benchmark::DoNotOptimize(c3 = 'c');
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O_N_Cubed) -> DenseRange(1, 8) -> Complexity(benchmark::oNCubed);
|
||||
// Add enum tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_n_test_name, rms_o_n_test_name, enum_auto_big_o_n);
|
||||
|
||||
static void BM_Complexity_O_log_N(benchmark::State& state) {
|
||||
auto m = ConstructRandomMap(state.range_x());
|
||||
const int item_not_in_vector = state.range_x()*2; // Test worst case scenario (item not in vector)
|
||||
while (state.KeepRunning()) {
|
||||
benchmark::DoNotOptimize(m.find(item_not_in_vector));
|
||||
}
|
||||
state.SetComplexityN(state.range_x());
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O_log_N)
|
||||
-> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity(benchmark::oLogN);
|
||||
// Add lambda tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_n_test_name, rms_o_n_test_name, lambda_big_o_n);
|
||||
|
||||
// ========================================================================= //
|
||||
// ------------------------- Testing BigO O(N*lgN) ------------------------- //
|
||||
// ========================================================================= //
|
||||
|
||||
static void BM_Complexity_O_N_log_N(benchmark::State& state) {
|
||||
auto v = ConstructRandomVector(state.range_x());
|
||||
@ -93,14 +220,77 @@ static void BM_Complexity_O_N_log_N(benchmark::State& state) {
|
||||
state.SetComplexityN(state.range_x());
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O_N_log_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity(benchmark::oNLogN);
|
||||
BENCHMARK(BM_Complexity_O_N_log_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity([](int n) {return n * log2(n); });
|
||||
BENCHMARK(BM_Complexity_O_N_log_N) -> RangeMultiplier(2) -> Range(1<<10, 1<<16) -> Complexity();
|
||||
|
||||
// Test benchmark with no range and check no complexity is calculated.
|
||||
void BM_Extreme_Cases(benchmark::State& state) {
|
||||
while (state.KeepRunning()) {
|
||||
}
|
||||
}
|
||||
BENCHMARK(BM_Extreme_Cases) -> Complexity(benchmark::oNLogN);
|
||||
BENCHMARK(BM_Extreme_Cases) -> Arg(42) -> Complexity();
|
||||
const char* big_o_n_lg_n_test_name = "BM_Complexity_O_N_log_N_BigO";
|
||||
const char* rms_o_n_lg_n_test_name = "BM_Complexity_O_N_log_N_RMS";
|
||||
const char* enum_auto_big_o_n_lg_n = "NlgN";
|
||||
const char* lambda_big_o_n_lg_n = "f\\(N\\)";
|
||||
|
||||
// Add enum tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_n_lg_n_test_name, rms_o_n_lg_n_test_name, enum_auto_big_o_n_lg_n);
|
||||
|
||||
// Add lambda tests
|
||||
ADD_COMPLEXITY_CASES(&ConsoleOutputTests, &JSONOutputTests, &CSVOutputTests,
|
||||
big_o_n_lg_n_test_name, rms_o_n_lg_n_test_name, lambda_big_o_n_lg_n);
|
||||
|
||||
|
||||
// ========================================================================= //
|
||||
// --------------------------- TEST CASES END ------------------------------ //
|
||||
// ========================================================================= //
|
||||
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
// Add --color_print=false to argv since we don't want to match color codes.
|
||||
char new_arg[64];
|
||||
char* new_argv[64];
|
||||
std::copy(argv, argv + argc, new_argv);
|
||||
new_argv[argc++] = std::strcpy(new_arg, "--color_print=false");
|
||||
benchmark::Initialize(&argc, new_argv);
|
||||
|
||||
benchmark::ConsoleReporter CR;
|
||||
benchmark::JSONReporter JR;
|
||||
benchmark::CSVReporter CSVR;
|
||||
struct ReporterTest {
|
||||
const char* name;
|
||||
std::vector<TestCase>& output_cases;
|
||||
benchmark::BenchmarkReporter& reporter;
|
||||
std::stringstream out_stream;
|
||||
std::stringstream err_stream;
|
||||
|
||||
ReporterTest(const char* n,
|
||||
std::vector<TestCase>& out_tc,
|
||||
benchmark::BenchmarkReporter& br)
|
||||
: name(n), output_cases(out_tc), reporter(br) {
|
||||
reporter.SetOutputStream(&out_stream);
|
||||
reporter.SetErrorStream(&err_stream);
|
||||
}
|
||||
} TestCases[] = {
|
||||
{"ConsoleReporter", ConsoleOutputTests, CR},
|
||||
{"JSONReporter", JSONOutputTests, JR},
|
||||
{"CSVReporter", CSVOutputTests, CSVR}
|
||||
};
|
||||
|
||||
// Create the test reporter and run the benchmarks.
|
||||
std::cout << "Running benchmarks...\n";
|
||||
TestReporter test_rep({&CR, &JR, &CSVR});
|
||||
benchmark::RunSpecifiedBenchmarks(&test_rep);
|
||||
|
||||
for (auto& rep_test : TestCases) {
|
||||
std::string msg = std::string("\nTesting ") + rep_test.name + " Output\n";
|
||||
std::string banner(msg.size() - 1, '-');
|
||||
std::cout << banner << msg << banner << "\n";
|
||||
|
||||
std::cerr << rep_test.err_stream.str();
|
||||
std::cout << rep_test.out_stream.str();
|
||||
|
||||
for (const auto& TC : rep_test.output_cases)
|
||||
TC.Check(rep_test.out_stream);
|
||||
|
||||
std::cout << "\n";
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
BENCHMARK_MAIN()
|
||||
|
||||
@ -189,7 +189,7 @@ void BM_Complexity_O1(benchmark::State& state) {
|
||||
}
|
||||
BENCHMARK(BM_Complexity_O1)->Range(1, 1<<18)->Complexity(benchmark::o1);
|
||||
|
||||
std::string bigOStr = "[0-9]+\\.[0-9]+ \\* [0-9]+";
|
||||
std::string bigOStr = "[0-9]+\\.[0-9]+ \\([0-9]+\\)";
|
||||
|
||||
ADD_CASES(&ConsoleOutputTests, {
|
||||
{join("^BM_Complexity_O1_BigO", bigOStr, bigOStr) + "[ ]*$"},
|
||||
|
||||
Loading…
Reference in New Issue
Block a user