Differential D3061 Diff 8916 src/bench/prevector.cpp

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src/bench/prevector.cpp

// Copyright (c) 2015-2017 The Bitcoin Core developers		// Copyright (c) 2015-2018 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying		// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.		// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <compat.h>
#include <prevector.h>		#include <prevector.h>
		#include <serialize.h>
		#include <streams.h>
		#include <type_traits>

#include <bench/bench.h>		#include <bench/bench.h>

		// GCC 4.8 is missing some C++11 type_traits,
		// https://www.gnu.org/software/gcc/gcc-5/changes.html
		#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ < 5
		#define IS_TRIVIALLY_CONSTRUCTIBLE std::has_trivial_default_constructor
		#else
		#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivially_default_constructible
		#endif

struct nontrivial_t {		struct nontrivial_t {
int x;		int x;
nontrivial_t() : x(-1) {}		nontrivial_t() : x(-1) {}
		ADD_SERIALIZE_METHODS
		template <typename Stream, typename Operation>
		inline void SerializationOp(Stream &s, Operation ser_action) {
		READWRITE(x);
		}
};		};
static_assert(!IS_TRIVIALLY_CONSTRUCTIBLE<nontrivial_t>::value,		static_assert(!IS_TRIVIALLY_CONSTRUCTIBLE<nontrivial_t>::value,
"expected nontrivial_t to not be trivially constructible");		"expected nontrivial_t to not be trivially constructible");

typedef uint8_t trivial_t;		typedef uint8_t trivial_t;
static_assert(IS_TRIVIALLY_CONSTRUCTIBLE<trivial_t>::value,		static_assert(IS_TRIVIALLY_CONSTRUCTIBLE<trivial_t>::value,
"expected trivial_t to be trivially constructible");		"expected trivial_t to be trivially constructible");

Show All 16 Lines	while (state.KeepRunning()) {
t0.resize(28);		t0.resize(28);
t0.clear();		t0.clear();
t1.resize(29);		t1.resize(29);
t1.clear();		t1.clear();
}		}
}		}
}		}

template <typename T> void PrevectorResize(benchmark::State &state) {		template <typename T> static void PrevectorResize(benchmark::State &state) {
while (state.KeepRunning()) {		while (state.KeepRunning()) {
prevector<28, T> t0;		prevector<28, T> t0;
prevector<28, T> t1;		prevector<28, T> t1;
for (auto x = 0; x < 1000; ++x) {		for (auto x = 0; x < 1000; ++x) {
t0.resize(28);		t0.resize(28);
t0.resize(0);		t0.resize(0);
t1.resize(29);		t1.resize(29);
t1.resize(0);		t1.resize(0);
}		}
}		}
}		}

		template <typename T>
		static void PrevectorDeserialize(benchmark::State &state) {
		CDataStream s0(SER_NETWORK, 0);
		prevector<28, T> t0;
		t0.resize(28);
		for (auto x = 0; x < 900; ++x) {
		s0 << t0;
		}
		t0.resize(100);
		for (auto x = 0; x < 101; ++x) {
		s0 << t0;
		}
		while (state.KeepRunning()) {
		prevector<28, T> t1;
		for (auto x = 0; x < 1000; ++x) {
		s0 >> t1;
		}
		s0.Init(SER_NETWORK, 0);
		}
		}

#define PREVECTOR_TEST(name, nontrivops, trivops) \		#define PREVECTOR_TEST(name, nontrivops, trivops) \
static void Prevector##name##Nontrivial(benchmark::State &state) { \		static void Prevector##name##Nontrivial(benchmark::State &state) { \
Prevector##name<nontrivial_t>(state); \		Prevector##name<nontrivial_t>(state); \
} \		} \
BENCHMARK(Prevector##name##Nontrivial, nontrivops); \		BENCHMARK(Prevector##name##Nontrivial, nontrivops); \
static void Prevector##name##Trivial(benchmark::State &state) { \		static void Prevector##name##Trivial(benchmark::State &state) { \
Prevector##name<trivial_t>(state); \		Prevector##name<trivial_t>(state); \
} \		} \
BENCHMARK(Prevector##name##Trivial, trivops);		BENCHMARK(Prevector##name##Trivial, trivops);

PREVECTOR_TEST(Clear, 28300, 88600)		PREVECTOR_TEST(Clear, 28300, 88600)
PREVECTOR_TEST(Destructor, 28800, 88900)		PREVECTOR_TEST(Destructor, 28800, 88900)
PREVECTOR_TEST(Resize, 28900, 90300)		PREVECTOR_TEST(Resize, 28900, 90300)
		PREVECTOR_TEST(Deserialize, 6800, 52000)