aboutsummaryrefslogtreecommitdiff
path: root/src/bench/prevector.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/bench/prevector.cpp')
-rw-r--r--src/bench/prevector.cpp77
1 files changed, 77 insertions, 0 deletions
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)