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RandomX: rewrote dataset read code

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Unified code for AMD and Intel
1% faster on Intel
0.15% faster on AMD Ryzen
This commit is contained in:
SChernykh 2021-05-20 12:45:42 +02:00
parent 7f7b1fb073
commit ff82ca57f2
10 changed files with 16 additions and 69 deletions
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17
src/crypto/randomx/jit_compiler_x86.cpp
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@ -115,6 +115,7 @@ namespace randomx {
#define codeLoopLoad ADDR(randomx_program_loop_load)
#define codeLoopLoadXOP ADDR(randomx_program_loop_load_xop)
#define codeProgamStart ADDR(randomx_program_start)
#define codeReadDataset ADDR(randomx_program_read_dataset)
#define codeReadDatasetLightSshInit ADDR(randomx_program_read_dataset_sshash_init)
#define codeReadDatasetLightSshFin ADDR(randomx_program_read_dataset_sshash_fin)
#define codeDatasetInit ADDR(randomx_dataset_init)
@ -135,6 +136,7 @@ namespace randomx {
#define prologueSize (codeLoopBegin - codePrologue)
#define loopLoadSize (codeLoopLoadXOP - codeLoopLoad)
#define loopLoadXOPSize (codeProgamStart - codeLoopLoadXOP)
#define readDatasetSize (codeReadDatasetLightSshInit - codeReadDataset)
#define readDatasetLightInitSize (codeReadDatasetLightSshFin - codeReadDatasetLightSshInit)
#define readDatasetLightFinSize (codeLoopStore - codeReadDatasetLightSshFin)
#define loopStoreSize (codeLoopEnd - codeLoopStore)
@ -318,20 +320,7 @@ namespace randomx {
vm_flags = flags;
generateProgramPrologue(prog, pcfg);
uint8_t* p;
uint32_t n;
if (flags & RANDOMX_FLAG_AMD) {
p = RandomX_CurrentConfig.codeReadDatasetRyzenTweaked;
n = RandomX_CurrentConfig.codeReadDatasetRyzenTweakedSize;
}
else {
p = RandomX_CurrentConfig.codeReadDatasetTweaked;
n = RandomX_CurrentConfig.codeReadDatasetTweakedSize;
}
memcpy(code + codePos, p, n);
codePos += n;
emit(codeReadDataset, readDatasetSize, code, codePos);
generateProgramEpilogue(prog, pcfg);
}