439bef9751
Rewrite the sequence container benchmarks to only rely on the actual operations specified in SequenceContainer requirements and add benchmarks for std::list, which is also considered a sequence container. One of the major goals of this refactoring is also to make these container benchmarks run faster so that they can be run more frequently. The existing benchmarks have the significant problem that they take so long to run that they must basically be run overnight. This patch reduces the size of inputs such that the rewritten benchmarks each take at most a minute to run. This patch doesn't touch the string benchmarks, which were not using the generic container benchmark functions previously.
132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: c++03, c++11, c++14, c++17
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include <cassert>
|
|
#include <cstdint>
|
|
#include <tuple>
|
|
#include <vector>
|
|
|
|
#include "benchmark/benchmark.h"
|
|
|
|
#include "../CartesianBenchmarks.h"
|
|
#include "../GenerateInput.h"
|
|
|
|
namespace {
|
|
|
|
template <typename I, typename N>
|
|
std::array<I, 10> every_10th_percentile_N(I first, N n) {
|
|
N step = n / 10;
|
|
std::array<I, 10> res;
|
|
|
|
for (size_t i = 0; i < 10; ++i) {
|
|
res[i] = first;
|
|
std::advance(first, step);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
template <class IntT>
|
|
struct TestIntBase {
|
|
static std::vector<IntT> generateInput(size_t size) {
|
|
std::vector<IntT> Res(size);
|
|
std::generate(Res.begin(), Res.end(), [] { return getRandomInteger<IntT>(0, std::numeric_limits<IntT>::max()); });
|
|
return Res;
|
|
}
|
|
};
|
|
|
|
struct TestInt32 : TestIntBase<std::int32_t> {
|
|
static constexpr const char* Name = "TestInt32";
|
|
};
|
|
|
|
struct TestInt64 : TestIntBase<std::int64_t> {
|
|
static constexpr const char* Name = "TestInt64";
|
|
};
|
|
|
|
struct TestUint32 : TestIntBase<std::uint32_t> {
|
|
static constexpr const char* Name = "TestUint32";
|
|
};
|
|
|
|
struct TestMediumString {
|
|
static constexpr const char* Name = "TestMediumString";
|
|
static constexpr size_t StringSize = 32;
|
|
|
|
static std::vector<std::string> generateInput(size_t size) {
|
|
std::vector<std::string> Res(size);
|
|
std::generate(Res.begin(), Res.end(), [] { return getRandomString(StringSize); });
|
|
return Res;
|
|
}
|
|
};
|
|
|
|
using AllTestTypes = std::tuple<TestInt32, TestInt64, TestUint32, TestMediumString>;
|
|
|
|
struct LowerBoundAlg {
|
|
template <class I, class V>
|
|
I operator()(I first, I last, const V& value) const {
|
|
return std::lower_bound(first, last, value);
|
|
}
|
|
|
|
static constexpr const char* Name = "LowerBoundAlg";
|
|
};
|
|
|
|
struct UpperBoundAlg {
|
|
template <class I, class V>
|
|
I operator()(I first, I last, const V& value) const {
|
|
return std::upper_bound(first, last, value);
|
|
}
|
|
|
|
static constexpr const char* Name = "UpperBoundAlg";
|
|
};
|
|
|
|
struct EqualRangeAlg {
|
|
template <class I, class V>
|
|
std::pair<I, I> operator()(I first, I last, const V& value) const {
|
|
return std::equal_range(first, last, value);
|
|
}
|
|
|
|
static constexpr const char* Name = "EqualRangeAlg";
|
|
};
|
|
|
|
using AllAlgs = std::tuple<LowerBoundAlg, UpperBoundAlg, EqualRangeAlg>;
|
|
|
|
template <class Alg, class TestType>
|
|
struct PartitionPointBench {
|
|
size_t Quantity;
|
|
|
|
std::string name() const {
|
|
return std::string("PartitionPointBench_") + Alg::Name + "_" + TestType::Name + '/' + std::to_string(Quantity);
|
|
}
|
|
|
|
void run(benchmark::State& state) const {
|
|
auto Data = TestType::generateInput(Quantity);
|
|
std::sort(Data.begin(), Data.end());
|
|
auto Every10Percentile = every_10th_percentile_N(Data.begin(), Data.size());
|
|
|
|
for (auto _ : state) {
|
|
for (auto Test : Every10Percentile)
|
|
benchmark::DoNotOptimize(Alg{}(Data.begin(), Data.end(), *Test));
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
int main(int argc, char** argv) {
|
|
benchmark::Initialize(&argc, argv);
|
|
if (benchmark::ReportUnrecognizedArguments(argc, argv))
|
|
return 1;
|
|
|
|
const std::vector<size_t> Quantities = {1 << 8, 1 << 10, 1 << 20};
|
|
makeCartesianProductBenchmark<PartitionPointBench, AllAlgs, AllTestTypes>(Quantities);
|
|
benchmark::RunSpecifiedBenchmarks();
|
|
}
|