Bitcoin Core  0.20.99
P2P Digital Currency
gcs_filter.cpp
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1 // Copyright (c) 2018 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 <blockfilter.h>
7 
9 {
10  GCSFilter::ElementSet elements;
11  for (int i = 0; i < 10000; ++i) {
12  GCSFilter::Element element(32);
13  element[0] = static_cast<unsigned char>(i);
14  element[1] = static_cast<unsigned char>(i >> 8);
15  elements.insert(std::move(element));
16  }
17 
18  uint64_t siphash_k0 = 0;
19  bench.batch(elements.size()).unit("elem").run([&] {
20  GCSFilter filter({siphash_k0, 0, 20, 1 << 20}, elements);
21 
22  siphash_k0++;
23  });
24 }
25 
26 static void MatchGCSFilter(benchmark::Bench& bench)
27 {
28  GCSFilter::ElementSet elements;
29  for (int i = 0; i < 10000; ++i) {
30  GCSFilter::Element element(32);
31  element[0] = static_cast<unsigned char>(i);
32  element[1] = static_cast<unsigned char>(i >> 8);
33  elements.insert(std::move(element));
34  }
35  GCSFilter filter({0, 0, 20, 1 << 20}, elements);
36 
37  bench.unit("elem").run([&] {
38  filter.Match(GCSFilter::Element());
39  });
40 }
41 
BENCHMARK(ConstructGCSFilter)
static void MatchGCSFilter(benchmark::Bench &bench)
Definition: gcs_filter.cpp:26
Bench & run(char const *benchmarkName, Op &&op)
Repeatedly calls op() based on the configuration, and performs measurements.
Definition: nanobench.h:1134
This implements a Golomb-coded set as defined in BIP 158.
Definition: blockfilter.h:24
std::unordered_set< Element, ByteVectorHash > ElementSet
Definition: blockfilter.h:28
Bench & unit(char const *unit)
Sets the operation unit.
std::vector< unsigned char > Element
Definition: blockfilter.h:27
Main entry point to nanobench&#39;s benchmarking facility.
Definition: nanobench.h:583
static void ConstructGCSFilter(benchmark::Bench &bench)
Definition: gcs_filter.cpp:8
ANKERL_NANOBENCH(NODISCARD) std Bench & batch(T b) noexcept
Sets the batch size.