foundationdb/flowbench/BenchPopulate.cpp

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/*
* BenchPopulate.cpp
*
* This source file is part of the FoundationDB open source project
*
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* Copyright 2013-2022 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 "fdbclient/CommitTransaction.h"
#include "fdbclient/FDBTypes.h"
#include "flow/Arena.h"
#include "flow/FastAlloc.h"
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#include "flowbench/GlobalData.h"
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static constexpr bool EMPLACE_BACK = true;
static constexpr bool PUSH_BACK = false;
// Benchmarks the population of a VectorRef<MutationRef>
template <bool emplace>
static void bench_populate(benchmark::State& state) {
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size_t items = state.range(0);
size_t size = state.range(1);
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auto kv = getKV(size, size);
while (state.KeepRunning()) {
Standalone<VectorRef<MutationRef>> mutations;
mutations.reserve(mutations.arena(), items);
for (int i = 0; i < items; ++i) {
if constexpr (emplace) {
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mutations.emplace_back_deep(mutations.arena(), MutationRef::Type::SetValue, kv.key, kv.value);
} else {
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mutations.push_back_deep(mutations.arena(), MutationRef(MutationRef::Type::SetValue, kv.key, kv.value));
}
}
benchmark::DoNotOptimize(mutations);
}
state.SetItemsProcessed(items * static_cast<long>(state.iterations()));
}
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BENCHMARK_TEMPLATE(bench_populate, EMPLACE_BACK)->Ranges({ { 1, 1 << 20 }, { 1, 512 } })->ReportAggregatesOnly(true);
BENCHMARK_TEMPLATE(bench_populate, PUSH_BACK)->Ranges({ { 1, 1 << 20 }, { 1, 512 } })->ReportAggregatesOnly(true);