| /* |
| * 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 "bench/Benchmark.h" |
| #include "include/core/SkString.h" |
| #include "include/private/base/SkMutex.h" |
| #include "src/base/SkSharedMutex.h" |
| #include "src/base/SkSpinlock.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: |
| using INHERITED = Benchmark; |
| 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: |
| using INHERITED = Benchmark; |
| 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; ) |