96705e3712
Many of our benchmarks are basically just "call one function with a fixed argument". We don't need to keep repeating all the boilerplate for that. This also ensures we don't forget the benchmark::DoNotOptimize, which -- in addition to being a good idea in general -- specifically solves the problem with gettid benchmark and provides a more accurate result by removing the indirection through a function pointer. Test: ran benchmarks Change-Id: Id67535243678cd0d48f51cf25141e2040da9af03
30 lines
1 KiB
C++
30 lines
1 KiB
C++
/*
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* Copyright (C) 2014 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 <sys/syscall.h>
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#include <unistd.h>
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#include <benchmark/benchmark.h>
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#include "util.h"
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BIONIC_TRIVIAL_BENCHMARK(BM_unistd_getpid, getpid());
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BIONIC_TRIVIAL_BENCHMARK(BM_unistd_getpid_syscall, syscall(__NR_getpid));
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// TODO: glibc 2.30 added gettid() too.
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#if defined(__BIONIC__)
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BIONIC_TRIVIAL_BENCHMARK(BM_unistd_gettid, gettid());
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#endif
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BIONIC_TRIVIAL_BENCHMARK(BM_unistd_gettid_syscall, syscall(__NR_gettid));
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