Bitcoin ABC 0.30.7
P2P Digital Currency
rollingbloom.cpp
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1// Copyright (c) 2016 The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#include <bench/bench.h>
6#include <common/bloom.h>
7
8static void RollingBloom(benchmark::Bench &bench) {
9 CRollingBloomFilter filter(120000, 0.000001);
10 std::vector<uint8_t> data(32);
11 uint32_t count = 0;
12 bench.run([&] {
13 count++;
14 data[0] = count & 0xFF;
15 data[1] = (count >> 8) & 0xFF;
16 data[2] = (count >> 16) & 0xFF;
17 data[3] = (count >> 24) & 0xFF;
18 filter.insert(data);
19
20 data[0] = (count >> 24) & 0xFF;
21 data[1] = (count >> 16) & 0xFF;
22 data[2] = (count >> 8) & 0xFF;
23 data[3] = count & 0xFF;
24 filter.contains(data);
25 });
26}
27
29 CRollingBloomFilter filter(120000, 0.000001);
30 bench.run([&] { filter.reset(); });
31}
32
RollingBloomFilter is a probabilistic "keep track of most recently inserted" set.
Definition: bloom.h:115
void insert(Span< const uint8_t > vKey)
Definition: bloom.cpp:215
bool contains(Span< const uint8_t > vKey) const
Definition: bloom.cpp:249
Main entry point to nanobench's benchmarking facility.
Definition: nanobench.h:616
Bench & run(char const *benchmarkName, Op &&op)
Repeatedly calls op() based on the configuration, and performs measurements.
Definition: nanobench.h:1183
static void RollingBloom(benchmark::Bench &bench)
Definition: rollingbloom.cpp:8
BENCHMARK(RollingBloom)
static void RollingBloomReset(benchmark::Bench &bench)
static int count
Definition: tests.c:31