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// Copyright (c) 2015-2022 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/fs.h>
#include <util/macros.h>
#include <chrono>
#include <functional>
#include <map>
#include <string>
#include <vector>
#include <bench/nanobench.h> // IWYU pragma: export
/*
* Usage:
static void NameOfYourBenchmarkFunction(benchmark::Bench& bench)
{
...do any setup needed...
bench.run([&] {
...do stuff you want to time; refer to src/bench/nanobench.h
for more information and the options that can be passed here...
});
...do any cleanup needed...
}
BENCHMARK(NameOfYourBenchmarkFunction);
*/
namespace benchmark {
using ankerl::nanobench::Bench;
typedef std::function<void(Bench&)> BenchFunction;
enum PriorityLevel : uint8_t
{
LOW = 1 << 0,
HIGH = 1 << 2,
};
// List priority labels, comma-separated and sorted by increasing priority
std::string ListPriorities();
uint8_t StringToPriority(const std::string& str);
struct Args {
bool is_list_only;
bool sanity_check;
std::chrono::milliseconds min_time;
std::vector<double> asymptote;
fs::path output_csv;
fs::path output_json;
std::string regex_filter;
uint8_t priority;
};
class BenchRunner
{
// maps from "name" -> (function, priority_level)
typedef std::map<std::string, std::pair<BenchFunction, PriorityLevel>> BenchmarkMap;
static BenchmarkMap& benchmarks();
public:
BenchRunner(std::string name, BenchFunction func, PriorityLevel level);
static void RunAll(const Args& args);
};
} // namespace benchmark
// BENCHMARK(foo) expands to: benchmark::BenchRunner bench_11foo("foo", foo, priority_level);
#define BENCHMARK(n, priority_level) \
benchmark::BenchRunner PASTE2(bench_, PASTE2(__LINE__, n))(STRINGIZE(n), n, priority_level);
#endif // BITCOIN_BENCH_BENCH_H
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