78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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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 <err.h>
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#include <malloc.h>
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#include <stdint.h>
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#include <string>
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#include <benchmark/benchmark.h>
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#include <unwindstack/Elf.h>
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#include <unwindstack/Memory.h>
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#include "Utils.h"
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static void BenchmarkElfCreate(benchmark::State& state, const std::string& elf_file) {
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#if defined(__BIONIC__)
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uint64_t rss_bytes = 0;
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#endif
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uint64_t alloc_bytes = 0;
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for (auto _ : state) {
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state.PauseTiming();
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#if defined(__BIONIC__)
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mallopt(M_PURGE, 0);
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uint64_t rss_bytes_before = 0;
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GatherRss(&rss_bytes_before);
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#endif
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uint64_t alloc_bytes_before = mallinfo().uordblks;
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auto file_memory = unwindstack::Memory::CreateFileMemory(elf_file, 0);
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state.ResumeTiming();
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unwindstack::Elf elf(file_memory.release());
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if (!elf.Init() || !elf.valid()) {
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errx(1, "Internal Error: Cannot open elf.");
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}
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state.PauseTiming();
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#if defined(__BIONIC__)
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mallopt(M_PURGE, 0);
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#endif
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alloc_bytes += mallinfo().uordblks - alloc_bytes_before;
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#if defined(__BIONIC__)
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GatherRss(&rss_bytes);
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rss_bytes -= rss_bytes_before;
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#endif
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state.ResumeTiming();
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}
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#if defined(__BIONIC__)
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state.counters["RSS_BYTES"] = rss_bytes / static_cast<double>(state.iterations());
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#endif
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state.counters["ALLOCATED_BYTES"] = alloc_bytes / static_cast<double>(state.iterations());
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}
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void BM_elf_create(benchmark::State& state) {
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BenchmarkElfCreate(state, GetElfFile());
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}
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BENCHMARK(BM_elf_create);
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void BM_elf_create_compressed(benchmark::State& state) {
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BenchmarkElfCreate(state, GetCompressedElfFile());
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}
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BENCHMARK(BM_elf_create_compressed);
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