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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkMutex.h"
#include "SkSharedMutex.h"
#include "SkSpinlock.h"
#include "SkString.h"
template <typename Mutex>
class MutexBench : public Benchmark {
public:
MutexBench(SkString benchPrefix) : fBenchName(benchPrefix += "UncontendedBenchmark") { }
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
protected:
const char* onGetName() override {
return fBenchName.c_str();
}
void onDraw(int loops, SkCanvas*) override {
for (int i = 0; i < loops; i++) {
fMu.acquire();
fMu.release();
}
}
private:
typedef Benchmark INHERITED;
SkString fBenchName;
Mutex fMu;
};
class SharedBench : public Benchmark {
public:
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
protected:
const char* onGetName() override {
return "SkSharedMutexSharedUncontendedBenchmark";
}
void onDraw(int loops, SkCanvas*) override {
for (int i = 0; i < loops; i++) {
fMu.acquireShared();
fMu.releaseShared();
}
}
private:
typedef Benchmark INHERITED;
SkSharedMutex fMu;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new MutexBench<SkSharedMutex>(SkString("SkSharedMutex")); )
DEF_BENCH( return new MutexBench<SkMutex>(SkString("SkMutex")); )
DEF_BENCH( return new MutexBench<SkSpinlock>(SkString("SkSpinlock")); )
DEF_BENCH( return new SharedBench; )
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