foundationdb/flowbench/BenchRef.cpp

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