phantom/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-04-29 23:09:44 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

refactor: Preallocate PrevectorFillVector(In)Direct without vector resize

Browse source 
The prevector benchmarks were likely not trying to measure vector resize performance.
This commit is contained in:
Lőrinc 2024-11-18 16:18:10 +01:00
parent a774c7a339
commit 152fefe7a2
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/bench/prevector.cpp
View file

@ -87,6 +87,7 @@ static void PrevectorFillVectorDirect(benchmark::Bench& bench)
{ {
bench.run([&] { bench.run([&] {
std::vector<prevector<28, T>> vec; std::vector<prevector<28, T>> vec;
vec.reserve(260);
for (size_t i = 0; i < 260; ++i) { for (size_t i = 0; i < 260; ++i) {
vec.emplace_back(); vec.emplace_back();
} }
@ -99,6 +100,7 @@ static void PrevectorFillVectorIndirect(benchmark::Bench& bench)
{ {
bench.run([&] { bench.run([&] {
std::vector<prevector<28, T>> vec; std::vector<prevector<28, T>> vec;
vec.reserve(260);
for (size_t i = 0; i < 260; ++i) { for (size_t i = 0; i < 260; ++i) {
// force allocation // force allocation
vec.emplace_back(29, T{}); vec.emplace_back(29, T{});