Files
bitcoin/src/bench/rollingbloom.cpp
Martin Ankerl e148a52332 bench: fixed ubsan implicit conversion
The benchmarks can now run much longer due to the minimum of 10ms or
directly with -min_time. With -min_time=20000 I could trigger two ubsan
errors in the benchmarks, which are fixed in this commit by using
unsigned type and adding "& 0xFF".
2021-09-21 14:45:49 +02:00

40 lines
1.0 KiB
C++

// Copyright (c) 2016-2020 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 <bloom.h>
static void RollingBloom(benchmark::Bench& bench)
{
CRollingBloomFilter filter(120000, 0.000001);
std::vector<unsigned char> data(32);
uint32_t count = 0;
bench.run([&] {
count++;
data[0] = count & 0xFF;
data[1] = (count >> 8) & 0xFF;
data[2] = (count >> 16) & 0xFF;
data[3] = (count >> 24) & 0xFF;
filter.insert(data);
data[0] = (count >> 24) & 0xFF;
data[1] = (count >> 16) & 0xFF;
data[2] = (count >> 8) & 0xFF;
data[3] = count & 0xFF;
filter.contains(data);
});
}
static void RollingBloomReset(benchmark::Bench& bench)
{
CRollingBloomFilter filter(120000, 0.000001);
bench.run([&] {
filter.reset();
});
}
BENCHMARK(RollingBloom);
BENCHMARK(RollingBloomReset);