fzorb/REDACTED-rig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

RandomX: AES improvements

Browse source 
- A bit faster hardware AES code when compiled with MSVC
- More reliable software AES benchmark
This commit is contained in:
SChernykh 2020-09-21 17:51:08 +02:00
parent db920e8006
commit 891a46382e
2 changed files with 44 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

46
src/crypto/randomx/soft_aes.cpp
View file

@ -131,31 +131,35 @@ uint32_t GetSoftAESImpl()
void SelectSoftAESImpl()
{
constexpr int test_length_ms = 100;
double speed[2];
double speed[2] = {};
for (int i = 0; i < 2; ++i)
{
std::vector<uint8_t> scratchpad(10 * 1024);
uint8_t hash[64] = {};
uint8_t state[64] = {};
for (int run = 0; run < 3; ++run) {
for (int i = 0; i < 2; ++i) {
std::vector<uint8_t> scratchpad(10 * 1024);
uint8_t hash[64] = {};
uint8_t state[64] = {};
uint64_t t1, t2;
uint64_t t1, t2;
uint32_t count = 0;
t1 = xmrig::Chrono::highResolutionMSecs();
do {
if (i == 0) {
hashAndFillAes1Rx4<1>(scratchpad.data(), scratchpad.size(), hash, state);
uint32_t count = 0;
t1 = xmrig::Chrono::highResolutionMSecs();
do {
if (i == 0) {
hashAndFillAes1Rx4<1>(scratchpad.data(), scratchpad.size(), hash, state);
}
else {
hashAndFillAes1Rx4<2>(scratchpad.data(), scratchpad.size(), hash, state);
}
++count;
t2 = xmrig::Chrono::highResolutionMSecs();
} while (t2 - t1 < test_length_ms);
const double x = count * 1e3 / (t2 - t1);
if (x > speed[i]) {
speed[i] = x;
}
else {
hashAndFillAes1Rx4<2>(scratchpad.data(), scratchpad.size(), hash, state);
}
++count;
t2 = xmrig::Chrono::highResolutionMSecs();
} while (t2 - t1 < test_length_ms);
speed[i] = count * 1e3 / (t2 - t1);
}
}
softAESImpl = (speed[0] > speed[1]) ? 1 : 2;