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Added config option for AVX2 dataset init

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-1 = Auto detect
0 = Always disabled
1 = Enabled if AVX2 is supported
This commit is contained in:
SChernykh 2020-12-19 16:18:49 +01:00
parent 410313d933
commit 633aaccd9c
14 changed files with 74 additions and 38 deletions
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65
src/crypto/randomx/jit_compiler_x86.cpp
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@ -52,12 +52,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endif
static bool hugePagesJIT = false;
static int optimizedDatasetInit = -1;
void randomx_set_huge_pages_jit(bool hugePages)
{
hugePagesJIT = hugePages;
}
void randomx_set_optimized_dataset_init(int value)
{
optimizedDatasetInit = value;
}
namespace randomx {
/*
@ -209,41 +215,52 @@ namespace randomx {
static std::atomic<size_t> codeOffset;
constexpr size_t codeOffsetIncrement = 59 * 64;
JitCompilerX86::JitCompilerX86(bool hugePagesEnable) {
JitCompilerX86::JitCompilerX86(bool hugePagesEnable, bool optimizedInitDatasetEnable) {
BranchesWithin32B = xmrig::Cpu::info()->jccErratum();
hasAVX = xmrig::Cpu::info()->hasAVX();
hasAVX2 = xmrig::Cpu::info()->hasAVX2();
// Set to false by default
// Disable by default
initDatasetAVX2 = false;
xmrig::ICpuInfo::Vendor vendor = xmrig::Cpu::info()->vendor();
xmrig::ICpuInfo::Arch arch = xmrig::Cpu::info()->arch();
if (vendor == xmrig::ICpuInfo::VENDOR_INTEL) {
// AVX2 init is faster on Intel CPUs without HT
initDatasetAVX2 = xmrig::Cpu::info()->cores() == xmrig::Cpu::info()->threads();
}
else if (vendor == xmrig::ICpuInfo::VENDOR_AMD) {
switch (arch) {
case xmrig::ICpuInfo::ARCH_ZEN:
case xmrig::ICpuInfo::ARCH_ZEN_PLUS:
// AVX2 init is slow on Zen/Zen+
initDatasetAVX2 = false;
break;
case xmrig::ICpuInfo::ARCH_ZEN2:
// AVX2 init is faster on Zen2 without SMT (mobile CPUs)
initDatasetAVX2 = xmrig::Cpu::info()->cores() == xmrig::Cpu::info()->threads();
break;
case xmrig::ICpuInfo::ARCH_ZEN3:
// AVX2 init is faster on Zen3
if (optimizedInitDatasetEnable) {
// Dataset init using AVX2:
// -1 = Auto detect
// 0 = Always disabled
// +1 = Always enabled
if (optimizedDatasetInit > 0) {
initDatasetAVX2 = true;
break;
}
else if (optimizedDatasetInit < 0) {
xmrig::ICpuInfo::Vendor vendor = xmrig::Cpu::info()->vendor();
xmrig::ICpuInfo::Arch arch = xmrig::Cpu::info()->arch();
if (vendor == xmrig::ICpuInfo::VENDOR_INTEL) {
// AVX2 init is faster on Intel CPUs without HT
initDatasetAVX2 = (xmrig::Cpu::info()->cores() == xmrig::Cpu::info()->threads());
}
else if (vendor == xmrig::ICpuInfo::VENDOR_AMD) {
switch (arch) {
case xmrig::ICpuInfo::ARCH_ZEN:
case xmrig::ICpuInfo::ARCH_ZEN_PLUS:
// AVX2 init is slower on Zen/Zen+
initDatasetAVX2 = false;
break;
case xmrig::ICpuInfo::ARCH_ZEN2:
// AVX2 init is faster on Zen2 without SMT (mobile CPUs)
initDatasetAVX2 = (xmrig::Cpu::info()->cores() == xmrig::Cpu::info()->threads());
break;
case xmrig::ICpuInfo::ARCH_ZEN3:
// AVX2 init is faster on Zen3
initDatasetAVX2 = true;
break;
}
}
}
}
// Sorry low-end Intel CPUs
// Sorry, low-end Intel CPUs
if (!hasAVX2) {
initDatasetAVX2 = false;
}