f0e7aa7020
This prepares for a series of two additional commits which optimize prevector performance.
77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
// Copyright (c) 2015-2017 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <compat.h>
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#include <prevector.h>
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#include <bench/bench.h>
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struct nontrivial_t {
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int x;
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nontrivial_t() :x(-1) {}
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};
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static_assert(!IS_TRIVIALLY_CONSTRUCTIBLE<nontrivial_t>::value,
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"expected nontrivial_t to not be trivially constructible");
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typedef unsigned char trivial_t;
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static_assert(IS_TRIVIALLY_CONSTRUCTIBLE<trivial_t>::value,
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"expected trivial_t to be trivially constructible");
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template <typename T>
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static void PrevectorDestructor(benchmark::State& state)
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{
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while (state.KeepRunning()) {
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for (auto x = 0; x < 1000; ++x) {
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prevector<28, T> t0;
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prevector<28, T> t1;
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t0.resize(28);
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t1.resize(29);
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}
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}
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}
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template <typename T>
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static void PrevectorClear(benchmark::State& state)
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{
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while (state.KeepRunning()) {
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for (auto x = 0; x < 1000; ++x) {
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prevector<28, T> t0;
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prevector<28, T> t1;
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t0.resize(28);
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t0.clear();
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t1.resize(29);
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t0.clear();
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}
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}
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}
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template <typename T>
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void PrevectorResize(benchmark::State& state)
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{
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while (state.KeepRunning()) {
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prevector<28, T> t0;
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prevector<28, T> t1;
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for (auto x = 0; x < 1000; ++x) {
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t0.resize(28);
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t0.resize(0);
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t1.resize(29);
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t1.resize(0);
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}
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}
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}
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#define PREVECTOR_TEST(name, nontrivops, trivops) \
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static void Prevector ## name ## Nontrivial(benchmark::State& state) { \
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PrevectorResize<nontrivial_t>(state); \
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} \
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BENCHMARK(Prevector ## name ## Nontrivial, nontrivops); \
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static void Prevector ## name ## Trivial(benchmark::State& state) { \
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PrevectorResize<trivial_t>(state); \
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} \
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BENCHMARK(Prevector ## name ## Trivial, trivops);
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PREVECTOR_TEST(Clear, 28300, 88600)
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PREVECTOR_TEST(Destructor, 28800, 88900)
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PREVECTOR_TEST(Resize, 28900, 90300)
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