101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/*
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* BenchWaitForAllReady.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 2013-2026 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/ThreadHelper.h"
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#include "flow/genericactors.actor.h"
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#include "genericcoros.h"
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#include <vector>
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namespace {
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enum class WaitForAllReadyImpl { Actor, Coroutine };
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enum class WaitForAllReadyScenario { Ready, Error };
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template <WaitForAllReadyScenario Scenario>
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std::vector<Future<int>> makeResults(int futureCount) {
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std::vector<Future<int>> results;
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results.reserve(futureCount);
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for (int i = 0; i < futureCount; ++i) {
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if constexpr (Scenario == WaitForAllReadyScenario::Ready) {
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results.emplace_back(i);
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} else {
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results.emplace_back(operation_failed());
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}
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}
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return results;
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}
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template <WaitForAllReadyImpl Impl, WaitForAllReadyScenario Scenario>
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Future<Void> benchWaitForAllReadyActor(benchmark::State* state) {
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const int futureCount = state->range(0);
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// Prebuild the futures so the benchmark isolates waitForAllReady itself
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// instead of vector growth or Promise/Future setup cost.
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const std::vector<Future<int>> results = makeResults<Scenario>(futureCount);
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while (state->KeepRunning()) {
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if constexpr (Impl == WaitForAllReadyImpl::Actor) {
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Future<Void> done = ::waitForAllReady<int>(results);
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co_await done;
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benchmark::DoNotOptimize(done);
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} else {
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Future<Void> done = generic_coro::waitForAllReady<int>(results);
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co_await done;
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benchmark::DoNotOptimize(done);
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}
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benchmark::ClobberMemory();
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}
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state->SetItemsProcessed(static_cast<int64_t>(state->iterations()) * futureCount);
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}
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template <WaitForAllReadyImpl Impl, WaitForAllReadyScenario Scenario>
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void benchWaitForAllReady(benchmark::State& state) {
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onMainThread([&state] { return benchWaitForAllReadyActor<Impl, Scenario>(&state); }).blockUntilReady();
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}
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BENCHMARK_TEMPLATE(benchWaitForAllReady, WaitForAllReadyImpl::Actor, WaitForAllReadyScenario::Ready)
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->Name("WaitForAllReady/actor/ready")
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->RangeMultiplier(4)
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->Range(1, 1 << 12)
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->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(benchWaitForAllReady, WaitForAllReadyImpl::Coroutine, WaitForAllReadyScenario::Ready)
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->Name("WaitForAllReady/coroutine/ready")
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->RangeMultiplier(4)
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->Range(1, 1 << 12)
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->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(benchWaitForAllReady, WaitForAllReadyImpl::Actor, WaitForAllReadyScenario::Error)
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->Name("WaitForAllReady/actor/error")
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->RangeMultiplier(4)
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->Range(1, 1 << 12)
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->ReportAggregatesOnly(true);
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BENCHMARK_TEMPLATE(benchWaitForAllReady, WaitForAllReadyImpl::Coroutine, WaitForAllReadyScenario::Error)
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->Name("WaitForAllReady/coroutine/error")
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->RangeMultiplier(4)
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->Range(1, 1 << 12)
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->ReportAggregatesOnly(true);
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} // namespace
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