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crypto tests: cn_fast_hash_perf improved

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sowle 2021-12-18 08:35:48 +03:00
parent e689f281a3
commit 8645a9ce2f
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GPG key ID: C07A24B2D89D49FC
1 changed files with 69 additions and 17 deletions
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86
tests/functional_tests/crypto_tests.cpp
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@ -959,33 +959,85 @@ TEST(crypto, hp)
TEST(crypto, cn_fast_hash_perf)
{
return true;
crypto::hash h = { 3, 14, 15, 9, 26 };
//return true;
const crypto::hash h_initial = *(crypto::hash*)(&scalar_t::random());
size_t n = 100000;
std::vector<std::vector<uint8_t>> test_data;
test_data.push_back(std::vector<uint8_t>(32, 0));
test_data.push_back(std::vector<uint8_t>(63, 0));
test_data.push_back(std::vector<uint8_t>(127, 0));
test_data.push_back(std::vector<uint8_t>(135, 0));
test_data.push_back(std::vector<uint8_t>(255, 0));
test_data.push_back(std::vector<uint8_t>(271, 0)); // 271 = 136 * 2 - 1
test_data.push_back(std::vector<uint8_t>(2030, 0));
for (size_t j = 0, sz = test_data.size(); j < sz; ++j)
crypto::generate_random_bytes(test_data[j].size(), test_data[j].data());
struct times_t
{
uint64_t t_old{ 0 }, t_new{ 0 };
crypto::hash h_old{};
double diff{ 0 };
};
std::vector<times_t> results(test_data.size());
size_t n = 50000;
double diff_sum = 0;
for (size_t j = 0; j < 20; ++j)
for (size_t k = 0; k < 50; ++k)
{
TIME_MEASURE_START(t_old);
for (size_t i = 0; i < n; ++i)
cn_fast_hash_old(&h, sizeof h, (char*)&h);
TIME_MEASURE_FINISH(t_old);
for (size_t j = 0, sz = test_data.size(); j < sz; ++j)
{
crypto::hash h = h_initial;
TIME_MEASURE_START(t_old);
for (size_t i = 0; i < n; ++i)
{
*(crypto::hash*)(test_data[j].data()) = h;
cn_fast_hash_old(test_data[j].data(), test_data[j].size(), (char*)&h);
}
TIME_MEASURE_FINISH(t_old);
results[j].t_old = t_old;
results[j].h_old = h;
}
TIME_MEASURE_START(t);
for (size_t i = 0; i < n; ++i)
cn_fast_hash(&h, sizeof h, (char*)&h);
TIME_MEASURE_FINISH(t);
for (size_t j = 0, sz = test_data.size(); j < sz; ++j)
{
crypto::hash h = h_initial;
TIME_MEASURE_START(t_new);
for (size_t i = 0; i < n; ++i)
{
*(crypto::hash*)(test_data[j].data()) = h;
cn_fast_hash(test_data[j].data(), test_data[j].size(), (char*)&h);
}
TIME_MEASURE_FINISH(t_new);
results[j].t_new = t_new;
ASSERT_EQ(h, results[j].h_old);
}
double diff = ((int64_t)t_old - (int64_t)t) / (double)n;
std::stringstream ss;
double diff_round = 0;
for (size_t j = 0, sz = test_data.size(); j < sz; ++j)
{
double diff = ((int64_t)results[j].t_old - (int64_t)results[j].t_new) / (double)n;
LOG_PRINT_L0("cn_fast_hash (old/new): " << std::fixed << std::setprecision(3) << t_old / (double)n << " " <<
std::fixed << std::setprecision(3) << t * 1.0 / n << " mcs diff => " << std::fixed << std::setprecision(4) << diff);
ss << std::fixed << std::setprecision(3) << results[j].t_old / (double)n << "/" <<
std::fixed << std::setprecision(3) << results[j].t_new / (double)n << " ";
diff_sum += diff;
results[j].diff += diff;
diff_round += diff;
}
diff_sum += diff_round;
LOG_PRINT_L0("cn_fast_hash (old/new) [" << std::setw(2) << k << "]: " << ss.str() << " mcs, diff_round = " << std::fixed << std::setprecision(4) << diff_round <<
" diff_sum = " << std::fixed << std::setprecision(4) << diff_sum);
}
std::cout << h << " diff sum: " << diff_sum << std::endl;
std::stringstream ss;
for (size_t j = 0, sz = results.size(); j < sz; ++j)
ss << std::fixed << std::setprecision(4) << results[j].diff << " ";
LOG_PRINT_L0(" " << ss.str());
return true;
}