Files
scylladb/test/perf/perf_hash.cc
Avi Kivity f3eade2f62 treewide: relicense to ScyllaDB-Source-Available-1.0
Drop the AGPL license in favor of a source-available license.
See the blog post [1] for details.

[1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
2024-12-18 17:45:13 +02:00

40 lines
845 B
C++

/*
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
*/
#include "utils/murmur_hash.hh"
#include "test/perf/perf.hh"
volatile uint64_t black_hole;
int main(int argc, char* argv[]) {
const uint64_t seed = 0;
auto src = bytes("0123412308129301923019283056789012345");
uint64_t sink = 0;
std::cout << "Timing fixed hash...\n";
time_it([&] {
std::array<uint64_t,2> dst;
utils::murmur_hash::hash3_x64_128(src, seed, dst);
sink += dst[0];
sink += dst[1];
});
std::cout << "Timing iterator hash...\n";
time_it([&] {
std::array<uint64_t,2> dst;
utils::murmur_hash::hash3_x64_128(src.begin(), src.size(), seed, dst);
sink += dst[0];
sink += dst[1];
});
black_hole = sink;
}