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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/bind.h" | |
| 6 #include "base/bind_helpers.h" | |
| 7 #include "base/time/time.h" | |
| 8 #include "build/build_config.h" | |
| 9 #include "media/base/sinc_resampler.h" | |
| 10 #include "testing/gmock/include/gmock/gmock.h" | |
| 11 #include "testing/gtest/include/gtest/gtest.h" | |
| 12 #include "testing/perf/perf_test.h" | |
| 13 | |
| 14 namespace media { | |
| 15 | |
| 16 static const int kBenchmarkIterations = 50000000; | |
| 17 | |
| 18 static const double kSampleRateRatio = 192000.0 / 44100.0; | |
| 19 static const double kKernelInterpolationFactor = 0.5; | |
| 20 | |
| 21 // Helper function to provide no input to SincResampler's Convolve benchmark. | |
| 22 static void DoNothing(int frames, float* destination) {} | |
| 23 | |
| 24 // Define platform independent function name for Convolve* tests. | |
| 25 #if defined(ARCH_CPU_X86_FAMILY) | |
| 26 #define CONVOLVE_FUNC Convolve_SSE | |
| 27 #elif defined(ARCH_CPU_ARM_FAMILY) && defined(USE_NEON) | |
| 28 #define CONVOLVE_FUNC Convolve_NEON | |
| 29 #endif | |
| 30 | |
| 31 static void RunConvolveBenchmark( | |
| 32 SincResampler* resampler, | |
| 33 float (*convolve_fn)(const float*, const float*, const float*, double), | |
| 34 bool aligned, | |
| 35 const std::string& trace_name) { | |
| 36 base::TimeTicks start = base::TimeTicks::Now(); | |
| 37 for (int i = 0; i < kBenchmarkIterations; ++i) { | |
| 38 convolve_fn(resampler->get_kernel_for_testing() + (aligned ? 0 : 1), | |
| 39 resampler->get_kernel_for_testing(), | |
| 40 resampler->get_kernel_for_testing(), | |
| 41 kKernelInterpolationFactor); | |
| 42 } | |
| 43 double total_time_milliseconds = | |
| 44 (base::TimeTicks::Now() - start).InMillisecondsF(); | |
| 45 perf_test::PrintResult("sinc_resampler_convolve", | |
| 46 "", | |
| 47 trace_name, | |
| 48 kBenchmarkIterations / total_time_milliseconds, | |
| 49 "runs/ms", | |
| 50 true); | |
| 51 } | |
| 52 | |
| 53 // Benchmark for the various Convolve() methods. Make sure to build with | |
| 54 // branding=Chrome so that DCHECKs are compiled out when benchmarking. | |
| 55 TEST(SincResamplerPerfTest, Convolve) { | |
| 56 SincResampler resampler(kSampleRateRatio, | |
| 57 SincResampler::kDefaultRequestSize, | |
| 58 base::Bind(&DoNothing)); | |
| 59 | |
| 60 RunConvolveBenchmark( | |
| 61 &resampler, SincResampler::Convolve_C, true, "unoptimized_aligned"); | |
| 62 | |
| 63 #if defined(CONVOLVE_FUNC) | |
| 64 RunConvolveBenchmark( | |
| 65 &resampler, SincResampler::CONVOLVE_FUNC, true, "optimized_aligned"); | |
| 66 RunConvolveBenchmark( | |
| 67 &resampler, SincResampler::CONVOLVE_FUNC, false, "optimized_unaligned"); | |
| 68 #endif | |
| 69 } | |
| 70 | |
| 71 #undef CONVOLVE_FUNC | |
| 72 | |
| 73 } // namespace media | |
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Chromium Code Reviews
Issue 2556993002:
Experiment with AVX optimizations for FMAC, FMUL operations.
