1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "media/base/sinc_resampler.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_result_reporter.h"
namespace media {
static const int kBenchmarkIterations = 50000000;
static const double kSampleRateRatio = 192000.0 / 44100.0;
static const double kKernelInterpolationFactor = 0.5;
static void RunConvolveBenchmark(
float (*convolve_fn)(const float*, const float*, const float*, double),
bool aligned,
const std::string& trace_name) {
SincResampler resampler(kSampleRateRatio, SincResampler::kDefaultRequestSize,
base::DoNothing());
base::TimeTicks start = base::TimeTicks::Now();
for (int i = 0; i < kBenchmarkIterations; ++i) {
convolve_fn(resampler.get_kernel_for_testing() + (aligned ? 0 : 1),
resampler.get_kernel_for_testing(),
resampler.get_kernel_for_testing(), kKernelInterpolationFactor);
}
double total_time_seconds = (base::TimeTicks::Now() - start).InSecondsF();
perf_test::PerfResultReporter reporter("sinc_resampler", trace_name);
reporter.RegisterImportantMetric("_convolve", "runs/s");
reporter.AddResult("_convolve", kBenchmarkIterations / total_time_seconds);
}
// Benchmark for the various Convolve() methods. Make sure to build with
// branding=Chrome so that DCHECKs are compiled out when benchmarking.
TEST(SincResamplerPerfTest, Convolve_unoptimized_aligned) {
RunConvolveBenchmark(SincResampler::Convolve_C, true, "unoptimized_aligned");
}
TEST(SincResamplerPerfTest, Convolve_optimized_aligned) {
#if defined(ARCH_CPU_X86_FAMILY)
base::CPU cpu;
if (cpu.has_avx2()) {
RunConvolveBenchmark(SincResampler::Convolve_AVX2, true,
"optimized_aligned");
} else if (cpu.has_sse2()) {
RunConvolveBenchmark(SincResampler::Convolve_SSE, true,
"optimized_aligned");
}
#elif defined(ARCH_CPU_ARM_FAMILY) && defined(USE_NEON)
RunConvolveBenchmark(SincResampler::Convolve_NEON, true, "optimized_aligned");
#endif
}
TEST(SincResamplerPerfTest, Convolve_optimized_unaligned) {
#if defined(ARCH_CPU_X86_FAMILY)
base::CPU cpu;
if (cpu.has_avx2()) {
RunConvolveBenchmark(SincResampler::Convolve_AVX2, false,
"optimized_unaligned");
} else if (cpu.has_sse2()) {
RunConvolveBenchmark(SincResampler::Convolve_SSE, false,
"optimized_unaligned");
}
#elif defined(ARCH_CPU_ARM_FAMILY) && defined(USE_NEON)
RunConvolveBenchmark(SincResampler::Convolve_NEON, false,
"optimized_unaligned");
#endif
}
} // namespace media
|
