93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/*
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* BenchRef.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2020 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "benchmark/benchmark.h"
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#include "flow/FastAlloc.h"
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#include "flow/FastRef.h"
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#include <memory>
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struct Empty : public ReferenceCounted<Empty>, public FastAllocated<Empty> {};
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enum class RefType {
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RawPointer,
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UniquePointer,
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SharedPointer,
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FlowReference,
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};
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template <RefType refType>
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class Factory {};
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template <>
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struct Factory<RefType::RawPointer> {
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static Empty* create() { return new Empty{}; }
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static void cleanup(Empty* empty) { delete empty; }
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};
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template <>
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struct Factory<RefType::UniquePointer> {
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static std::unique_ptr<Empty> create() { return std::make_unique<Empty>(); }
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static void cleanup(const std::unique_ptr<Empty>&) {}
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};
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template <>
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struct Factory<RefType::SharedPointer> {
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static std::shared_ptr<Empty> create() { return std::make_shared<Empty>(); }
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static void cleanup(const std::shared_ptr<Empty>&) {}
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};
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template <>
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struct Factory<RefType::FlowReference> {
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static Reference<Empty> create() { return makeReference<Empty>(); }
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static void cleanup(const Reference<Empty>&) {}
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};
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template <RefType refType>
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static void bench_ref_create_and_destroy(benchmark::State& state) {
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while (state.KeepRunning()) {
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auto ptr = Factory<refType>::create();
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benchmark::DoNotOptimize(ptr);
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Factory<refType>::cleanup(ptr);
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}
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state.SetItemsProcessed(static_cast<long>(state.iterations()));
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}
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template <RefType refType>
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static void bench_ref_copy(benchmark::State& state) {
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auto ptr = Factory<refType>::create();
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while (state.KeepRunning()) {
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auto ptr2 = ptr;
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benchmark::DoNotOptimize(ptr2);
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}
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Factory<refType>::cleanup(ptr);
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state.SetItemsProcessed(static_cast<long>(state.iterations()));
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}
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BENCHMARK_TEMPLATE(bench_ref_create_and_destroy, RefType::RawPointer)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_create_and_destroy, RefType::UniquePointer)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_create_and_destroy, RefType::SharedPointer)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_create_and_destroy, RefType::FlowReference)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_copy, RefType::RawPointer)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_copy, RefType::SharedPointer)->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(bench_ref_copy, RefType::FlowReference)->ReportAggregatesOnly(true);
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