68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
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// Copyright 2019 The Abseil 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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// https://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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#include <stddef.h>
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#include <string>
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#include "benchmark/benchmark.h"
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#include "absl/container/fixed_array.h"
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namespace {
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// For benchmarking -- simple class with constructor and destructor that
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// set an int to a constant..
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class SimpleClass {
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public:
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SimpleClass() : i(3) {}
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~SimpleClass() { i = 0; }
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private:
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int i;
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};
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template <typename C, size_t stack_size>
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void BM_FixedArray(benchmark::State& state) {
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const int size = state.range(0);
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for (auto _ : state) {
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absl::FixedArray<C, stack_size> fa(size);
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benchmark::DoNotOptimize(fa.data());
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}
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}
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BENCHMARK_TEMPLATE(BM_FixedArray, char, absl::kFixedArrayUseDefault)
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->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, char, 0)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, char, 1)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, char, 16)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, char, 256)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, char, 65536)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, absl::kFixedArrayUseDefault)
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->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 0)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 1)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 16)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 256)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 65536)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, absl::kFixedArrayUseDefault)
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->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 0)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 1)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 16)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 256)->Range(0, 1 << 16);
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BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 65536)->Range(0, 1 << 16);
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} // namespace
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