diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.bench.include | 2 | ||||
| -rw-r--r-- | src/bench/prevector.cpp | 77 | ||||
| -rw-r--r-- | src/bench/prevector_destructor.cpp | 36 | ||||
| -rw-r--r-- | src/compat.h | 10 |
4 files changed, 88 insertions, 37 deletions
diff --git a/src/Makefile.bench.include b/src/Makefile.bench.include index 13c27299f8..748c5b7887 100644 --- a/src/Makefile.bench.include +++ b/src/Makefile.bench.include @@ -27,7 +27,7 @@ bench_bench_bitcoin_SOURCES = \ bench/lockedpool.cpp \ bench/perf.cpp \ bench/perf.h \ - bench/prevector_destructor.cpp + bench/prevector.cpp nodist_bench_bench_bitcoin_SOURCES = $(GENERATED_BENCH_FILES) diff --git a/src/bench/prevector.cpp b/src/bench/prevector.cpp new file mode 100644 index 0000000000..d0f28d1a3e --- /dev/null +++ b/src/bench/prevector.cpp @@ -0,0 +1,77 @@ +// Copyright (c) 2015-2017 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 <compat.h> +#include <prevector.h> + +#include <bench/bench.h> + +struct nontrivial_t { + int x; + nontrivial_t() :x(-1) {} +}; +static_assert(!IS_TRIVIALLY_CONSTRUCTIBLE<nontrivial_t>::value, + "expected nontrivial_t to not be trivially constructible"); + +typedef unsigned char trivial_t; +static_assert(IS_TRIVIALLY_CONSTRUCTIBLE<trivial_t>::value, + "expected trivial_t to be trivially constructible"); + +template <typename T> +static void PrevectorDestructor(benchmark::State& state) +{ + while (state.KeepRunning()) { + for (auto x = 0; x < 1000; ++x) { + prevector<28, T> t0; + prevector<28, T> t1; + t0.resize(28); + t1.resize(29); + } + } +} + +template <typename T> +static void PrevectorClear(benchmark::State& state) +{ + + while (state.KeepRunning()) { + for (auto x = 0; x < 1000; ++x) { + prevector<28, T> t0; + prevector<28, T> t1; + t0.resize(28); + t0.clear(); + t1.resize(29); + t0.clear(); + } + } +} + +template <typename T> +void PrevectorResize(benchmark::State& state) +{ + while (state.KeepRunning()) { + prevector<28, T> t0; + prevector<28, T> t1; + for (auto x = 0; x < 1000; ++x) { + t0.resize(28); + t0.resize(0); + t1.resize(29); + t1.resize(0); + } + } +} + +#define PREVECTOR_TEST(name, nontrivops, trivops) \ + static void Prevector ## name ## Nontrivial(benchmark::State& state) { \ + PrevectorResize<nontrivial_t>(state); \ + } \ + BENCHMARK(Prevector ## name ## Nontrivial, nontrivops); \ + static void Prevector ## name ## Trivial(benchmark::State& state) { \ + PrevectorResize<trivial_t>(state); \ + } \ + BENCHMARK(Prevector ## name ## Trivial, trivops); + +PREVECTOR_TEST(Clear, 28300, 88600) +PREVECTOR_TEST(Destructor, 28800, 88900) +PREVECTOR_TEST(Resize, 28900, 90300) diff --git a/src/bench/prevector_destructor.cpp b/src/bench/prevector_destructor.cpp deleted file mode 100644 index 39d0ee5eb1..0000000000 --- a/src/bench/prevector_destructor.cpp +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright (c) 2015-2017 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 <bench/bench.h> -#include <prevector.h> - -static void PrevectorDestructor(benchmark::State& state) -{ - while (state.KeepRunning()) { - for (auto x = 0; x < 1000; ++x) { - prevector<28, unsigned char> t0; - prevector<28, unsigned char> t1; - t0.resize(28); - t1.resize(29); - } - } -} - -static void PrevectorClear(benchmark::State& state) -{ - - while (state.KeepRunning()) { - for (auto x = 0; x < 1000; ++x) { - prevector<28, unsigned char> t0; - prevector<28, unsigned char> t1; - t0.resize(28); - t0.clear(); - t1.resize(29); - t0.clear(); - } - } -} - -BENCHMARK(PrevectorDestructor, 5700); -BENCHMARK(PrevectorClear, 5600); diff --git a/src/compat.h b/src/compat.h index aae84b1181..8a0f901304 100644 --- a/src/compat.h +++ b/src/compat.h @@ -10,6 +10,16 @@ #include <config/bitcoin-config.h> #endif +#include <type_traits> + +// GCC 4.8 is missing some C++11 type_traits, +// https://www.gnu.org/software/gcc/gcc-5/changes.html +#if defined(__GNUC__) && __GNUC__ < 5 +#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivial +#else +#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivially_constructible +#endif + #ifdef WIN32 #ifdef _WIN32_WINNT #undef _WIN32_WINNT |