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// Copyright (c) 2015-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_BENCH_BENCH_H
#define BITCOIN_BENCH_BENCH_H
#include <util/macros.h>
#include <chrono>
#include <functional>
#include <map>
#include <string>
#include <vector>
#include <bench/nanobench.h>
/*
* Usage:
static void CODE_TO_TIME(benchmark::Bench& bench)
{
... do any setup needed...
nanobench::Config().run([&] {
... do stuff you want to time...
});
... do any cleanup needed...
}
BENCHMARK(CODE_TO_TIME);
*/
namespace benchmark {
using ankerl::nanobench::Bench;
typedef std::function<void(Bench&)> BenchFunction;
struct Args {
std::string regex_filter;
bool is_list_only;
std::vector<double> asymptote;
std::string output_csv;
std::string output_json;
};
class BenchRunner
{
typedef std::map<std::string, BenchFunction> BenchmarkMap;
static BenchmarkMap& benchmarks();
public:
BenchRunner(std::string name, BenchFunction func);
static void RunAll(const Args& args);
};
}
// BENCHMARK(foo) expands to: benchmark::BenchRunner bench_11foo("foo", foo);
#define BENCHMARK(n) \
benchmark::BenchRunner PASTE2(bench_, PASTE2(__LINE__, n))(STRINGIZE(n), n);
#endif // BITCOIN_BENCH_BENCH_H
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