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/*
* (C) Copyright 1996- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to it by virtue of its status as an intergovernmental organisation nor
* does it submit to any jurisdiction.
*/
#include <cassert>
#include <iostream>
#include <memory>
#include "eckit/io/Buffer.h"
#include "eckit/log/Bytes.h"
#include "eckit/log/Seconds.h"
#include "eckit/log/Timer.h"
#include "eckit/utils/Hash.h"
#include "eckit/testing/Test.h"
using namespace std;
using namespace eckit;
using namespace eckit::testing;
namespace eckit {
namespace test {
//----------------------------------------------------------------------------------------------------------------------
template <int N, int M>
void timeAdd(Hash& hash, eckit::Buffer& buffer, eckit::Timer& timer) {
timer.start();
for (int i = 0; i < N; ++i) {
hash.reset();
for (size_t j = 0; j < M; ++j) {
hash.add(buffer, buffer.size());
}
hash.digest();
}
timer.stop();
std::cout << " - " << N << " x " << M << " x add(" << Bytes(buffer.size()) << ") rate "
<< Bytes(N * M * buffer.size(), timer) << std::endl;
}
template <int N>
void timeCompute(Hash& hash, eckit::Buffer& buffer, eckit::Timer& timer) {
timer.start();
for (int i = 0; i < N; ++i) {
std::string s = hash.compute(buffer, buffer.size());
assert(!s.empty());
}
timer.stop();
std::cout << " - " << N << " x compute(" << Bytes(buffer.size()) << ") rate " << Bytes(N * buffer.size(), timer)
<< std::endl;
}
//----------------------------------------------------------------------------------------------------------------------
CASE("Test hash performance") {
eckit::Buffer buffer(4 * 1024 * 1024);
eckit::Buffer buffer2(64 * 1024 * 1024);
eckit::Timer timer;
std::vector<std::string> hashes{"xxh64", "MD4", "MD5", "SHA1"};
for (auto& name : hashes) {
if (eckit::HashFactory::instance().has(name)) {
std::cout << name << std::endl;
std::unique_ptr<eckit::Hash> hash(eckit::HashFactory::instance().build(name));
timeAdd<20, 1>(*hash, buffer, timer);
timeCompute<5>(*hash, buffer2, timer);
}
}
}
//----------------------------------------------------------------------------------------------------------------------
} // namespace test
} // namespace eckit
int main(int argc, char* argv[]) {
return run_tests(argc, argv);
}
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