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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
// Adapted from donated nonius code.
#ifndef CATCH_BENCHMARK_HPP_INCLUDED
#define CATCH_BENCHMARK_HPP_INCLUDED
#include <catch2/catch_user_config.hpp>
#include <catch2/internal/catch_compiler_capabilities.hpp>
#include <catch2/internal/catch_context.hpp>
#include <catch2/internal/catch_move_and_forward.hpp>
#include <catch2/internal/catch_test_failure_exception.hpp>
#include <catch2/internal/catch_unique_name.hpp>
#include <catch2/interfaces/catch_interfaces_capture.hpp>
#include <catch2/interfaces/catch_interfaces_config.hpp>
#include <catch2/interfaces/catch_interfaces_registry_hub.hpp>
#include <catch2/benchmark/detail/catch_benchmark_stats.hpp>
#include <catch2/benchmark/catch_clock.hpp>
#include <catch2/benchmark/catch_environment.hpp>
#include <catch2/benchmark/catch_execution_plan.hpp>
#include <catch2/benchmark/detail/catch_estimate_clock.hpp>
#include <catch2/benchmark/detail/catch_analyse.hpp>
#include <catch2/benchmark/detail/catch_benchmark_function.hpp>
#include <catch2/benchmark/detail/catch_run_for_at_least.hpp>
#include <algorithm>
#include <chrono>
#include <exception>
#include <string>
#include <cmath>
namespace Catch {
namespace Benchmark {
struct Benchmark {
Benchmark(std::string&& benchmarkName)
: name(CATCH_MOVE(benchmarkName)) {}
template <class FUN>
Benchmark(std::string&& benchmarkName , FUN &&func)
: fun(CATCH_MOVE(func)), name(CATCH_MOVE(benchmarkName)) {}
template <typename Clock>
ExecutionPlan prepare(const IConfig &cfg, Environment env) {
auto min_time = env.clock_resolution.mean * Detail::minimum_ticks;
auto run_time = std::max(min_time, std::chrono::duration_cast<decltype(min_time)>(cfg.benchmarkWarmupTime()));
auto&& test = Detail::run_for_at_least<Clock>(std::chrono::duration_cast<IDuration>(run_time), 1, fun);
int new_iters = static_cast<int>(std::ceil(min_time * test.iterations / test.elapsed));
return { new_iters, test.elapsed / test.iterations * new_iters * cfg.benchmarkSamples(), CATCH_MOVE(fun), std::chrono::duration_cast<FDuration>(cfg.benchmarkWarmupTime()), Detail::warmup_iterations };
}
template <typename Clock = default_clock>
void run() {
static_assert( Clock::is_steady,
"Benchmarking clock should be steady" );
auto const* cfg = getCurrentContext().getConfig();
auto env = Detail::measure_environment<Clock>();
getResultCapture().benchmarkPreparing(name);
CATCH_TRY{
auto plan = user_code([&] {
return prepare<Clock>(*cfg, env);
});
BenchmarkInfo info {
CATCH_MOVE(name),
plan.estimated_duration.count(),
plan.iterations_per_sample,
cfg->benchmarkSamples(),
cfg->benchmarkResamples(),
env.clock_resolution.mean.count(),
env.clock_cost.mean.count()
};
getResultCapture().benchmarkStarting(info);
auto samples = user_code([&] {
return plan.template run<Clock>(*cfg, env);
});
auto analysis = Detail::analyse(*cfg, samples.data(), samples.data() + samples.size());
BenchmarkStats<> stats{ CATCH_MOVE(info), CATCH_MOVE(analysis.samples), analysis.mean, analysis.standard_deviation, analysis.outliers, analysis.outlier_variance };
getResultCapture().benchmarkEnded(stats);
} CATCH_CATCH_ANON (TestFailureException const&) {
getResultCapture().benchmarkFailed("Benchmark failed due to failed assertion"_sr);
} CATCH_CATCH_ALL{
getResultCapture().benchmarkFailed(translateActiveException());
// We let the exception go further up so that the
// test case is marked as failed.
std::rethrow_exception(std::current_exception());
}
}
// sets lambda to be used in fun *and* executes benchmark!
template <typename Fun, std::enable_if_t<!Detail::is_related<Fun, Benchmark>::value, int> = 0>
Benchmark & operator=(Fun func) {
auto const* cfg = getCurrentContext().getConfig();
if (!cfg->skipBenchmarks()) {
fun = Detail::BenchmarkFunction(func);
run();
}
return *this;
}
explicit operator bool() {
return true;
}
private:
Detail::BenchmarkFunction fun;
std::string name;
};
}
} // namespace Catch
#define INTERNAL_CATCH_GET_1_ARG(arg1, arg2, ...) arg1
#define INTERNAL_CATCH_GET_2_ARG(arg1, arg2, ...) arg2
#define INTERNAL_CATCH_BENCHMARK(BenchmarkName, name, benchmarkIndex)\
if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
BenchmarkName = [&](int benchmarkIndex)
#define INTERNAL_CATCH_BENCHMARK_ADVANCED(BenchmarkName, name)\
if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
BenchmarkName = [&]
#if defined(CATCH_CONFIG_PREFIX_ALL)
#define CATCH_BENCHMARK(...) \
INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
#define CATCH_BENCHMARK_ADVANCED(name) \
INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), name)
#else
#define BENCHMARK(...) \
INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
#define BENCHMARK_ADVANCED(name) \
INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), name)
#endif
#endif // CATCH_BENCHMARK_HPP_INCLUDED
|
