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// Copyright (c) 2015-2018 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <prevector.h>
#include <serialize.h>
#include <streams.h>
#include <type_traits>
#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 {
int x;
nontrivial_t() : x(-1) {}
SERIALIZE_METHODS(nontrivial_t, obj) { READWRITE(obj.x); }
};
static_assert(!IS_TRIVIALLY_CONSTRUCTIBLE<nontrivial_t>::value,
"expected nontrivial_t to not be trivially constructible");
typedef uint8_t trivial_t;
static_assert(IS_TRIVIALLY_CONSTRUCTIBLE<trivial_t>::value,
"expected trivial_t to be trivially constructible");
template <typename T> static void PrevectorDestructor(benchmark::Bench &bench) {
bench.batch(2).run([&] {
prevector<28, T> t0;
prevector<28, T> t1;
t0.resize(28);
t1.resize(29);
});
}
template <typename T> static void PrevectorClear(benchmark::Bench &bench) {
prevector<28, T> t0;
prevector<28, T> t1;
bench.batch(2).run([&] {
t0.resize(28);
t0.clear();
t1.resize(29);
t1.clear();
});
}
template <typename T> static void PrevectorResize(benchmark::Bench &bench) {
prevector<28, T> t0;
prevector<28, T> t1;
bench.batch(4).run([&] {
t0.resize(28);
t0.resize(0);
t1.resize(29);
t1.resize(0);
});
}
template <typename T>
static void PrevectorDeserialize(benchmark::Bench &bench) {
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;
}
bench.batch(1000).run([&] {
prevector<28, T> t1;
for (auto x = 0; x < 1000; ++x) {
s0 >> t1;
}
s0.Init(SER_NETWORK, 0);
});
}
#define PREVECTOR_TEST(name) \
static void Prevector##name##Nontrivial(benchmark::Bench &bench) { \
Prevector##name<nontrivial_t>(bench); \
} \
BENCHMARK(Prevector##name##Nontrivial); \
static void Prevector##name##Trivial(benchmark::Bench &bench) { \
Prevector##name<trivial_t>(bench); \
} \
BENCHMARK(Prevector##name##Trivial);
PREVECTOR_TEST(Clear)
PREVECTOR_TEST(Destructor)
PREVECTOR_TEST(Resize)
PREVECTOR_TEST(Deserialize)

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