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RandomX
mirror of https://github.com/tevador/RandomX
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Fixed cache alignment

Browse Source 
Performance tuning
pull/40/head
tevador 5 years ago
parent 77dbe14658
commit 6e3136b37f
6 changed files with 43 additions and 30 deletions
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2
src/Cache.hpp
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@ -34,7 +34,7 @@ namespace RandomX {
return (uint8_t*)allocLargePagesMemory(size);
}
else {
void* ptr = _mm_malloc(size, sizeof(__m128i));
void* ptr = _mm_malloc(size, CacheLineSize);
if (ptr == nullptr)
throw std::bad_alloc();
return (uint8_t*)ptr;

2
src/JitCompilerX86.cpp
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@ -628,7 +628,7 @@ namespace RandomX {
emitByte(0xc8 + instr.dst);
}
else {
if (NOP_TEST) {
if (false && NOP_TEST) {
emit(NOP4);
return;
}

49
src/LightProgramGenerator.cpp
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@ -216,7 +216,7 @@ namespace RandomX {
const MacroOp MacroOp::Sub_ri = MacroOp("sub r,i", 7, 1, ExecutionPort::P015);
const MacroOp MacroOp::Imul_rr = MacroOp("imul r,r", 4, 3, ExecutionPort::P1);
const MacroOp MacroOp::Imul_rri = MacroOp("imul r,r,i", 7, 3, ExecutionPort::P1);
const MacroOp MacroOp::Imul_r = MacroOp("imul r", 3, 3, ExecutionPort::P1, ExecutionPort::P5);
const MacroOp MacroOp::Imul_r = MacroOp("imul r", 3, 4, ExecutionPort::P1, ExecutionPort::P5);
const MacroOp MacroOp::Mul_r = MacroOp("mul r", 3, 3, ExecutionPort::P1, ExecutionPort::P5);
const MacroOp MacroOp::Mov_rr = MacroOp("mov r,r", 3);
const MacroOp MacroOp::Mov_ri64 = MacroOp("mov rax,i64", 10, 1, ExecutionPort::P015);
@ -357,9 +357,11 @@ namespace RandomX {
const char* getName() const {
return name_;
}
const DecoderBuffer* fetchNext(int prevType, Blake2Generator& gen) const {
if (prevType == LightInstructionType::IMULH_R || prevType == LightInstructionType::ISMULH_R)
const DecoderBuffer* fetchNext(int instrType, int cycle, int mulCount, Blake2Generator& gen) const {
if (instrType == LightInstructionType::IMULH_R || instrType == LightInstructionType::ISMULH_R)
return &decodeBuffer3310; //2-1-1 decode
if (mulCount < cycle)
return &decodeBuffer4444_mul;
if (index_ == 0) {
return &decodeBuffer4444; //IMUL_RCP end
}
@ -381,15 +383,16 @@ namespace RandomX {
static const DecoderBuffer decodeBuffer7333;
static const DecoderBuffer decodeBuffer3337;
static const DecoderBuffer decodeBuffer4444;
static const DecoderBuffer decodeBuffer4444_mul;
static const DecoderBuffer decodeBuffer3733;
static const DecoderBuffer decodeBuffer3373;
static const DecoderBuffer decodeBuffer133;
static const DecoderBuffer* decodeBuffers[7];
const DecoderBuffer* fetchNextDefault(Blake2Generator& gen) const {
int select;
do {
select = gen.getByte() & 7;
} while (select == 7);
//do {
select = gen.getByte() & 3;
//} while (select == 7);
return decodeBuffers[select];
}
};
@ -397,17 +400,16 @@ namespace RandomX {
const DecoderBuffer DecoderBuffer::decodeBuffer3310 = DecoderBuffer("3,3,10", 0, buffer0);
const DecoderBuffer DecoderBuffer::decodeBuffer7333 = DecoderBuffer("7,3,3,3", 1, buffer1);
const DecoderBuffer DecoderBuffer::decodeBuffer3337 = DecoderBuffer("3,3,3,7", 2, buffer2);
const DecoderBuffer DecoderBuffer::decodeBuffer4444_mul = DecoderBuffer("4,4,4,4-MUL", 3, buffer4);
const DecoderBuffer DecoderBuffer::decodeBuffer4444 = DecoderBuffer("4,4,4,4", 4, buffer4);
const DecoderBuffer DecoderBuffer::decodeBuffer3733 = DecoderBuffer("3,7,3,3", 5, buffer5);
const DecoderBuffer DecoderBuffer::decodeBuffer3373 = DecoderBuffer("3,3,7,3", 6, buffer6);
const DecoderBuffer DecoderBuffer::decodeBuffer133 = DecoderBuffer("13,3", 7, buffer7);
const DecoderBuffer* DecoderBuffer::decodeBuffers[7] = {
&DecoderBuffer::decodeBuffer3310,
&DecoderBuffer::decodeBuffer7333,
&DecoderBuffer::decodeBuffer3337,
&DecoderBuffer::decodeBuffer4444,
&DecoderBuffer::decodeBuffer4444,
&DecoderBuffer::decodeBuffer3733,
&DecoderBuffer::decodeBuffer3373,
};
@ -417,8 +419,8 @@ namespace RandomX {
const LightInstructionInfo* slot_3[] = { &LightInstructionInfo::ISUB_R, &LightInstructionInfo::IXOR_R };
const LightInstructionInfo* slot_3L[] = { &LightInstructionInfo::ISUB_R, &LightInstructionInfo::IXOR_R, &LightInstructionInfo::IMULH_R, &LightInstructionInfo::ISMULH_R };
const LightInstructionInfo* slot_3C[] = { &LightInstructionInfo::ISUB_R, &LightInstructionInfo::IXOR_R, &LightInstructionInfo::IROR_R, &LightInstructionInfo::IXOR_R };
const LightInstructionInfo* slot_4[] = { &LightInstructionInfo::IMUL_R, &LightInstructionInfo::IROR_C, &LightInstructionInfo::IADD_RS, &LightInstructionInfo::IMUL_R };
const LightInstructionInfo* slot_7[] = { &LightInstructionInfo::ISUB_C, &LightInstructionInfo::IMUL_C, &LightInstructionInfo::IXOR_C, &LightInstructionInfo::ISUB_C };
const LightInstructionInfo* slot_4[] = { &LightInstructionInfo::IROR_C, &LightInstructionInfo::IADD_RS };
const LightInstructionInfo* slot_7[] = { &LightInstructionInfo::IXOR_C, &LightInstructionInfo::ISUB_C };
const LightInstructionInfo* slot_7L = &LightInstructionInfo::COND_R;
const LightInstructionInfo* slot_10 = &LightInstructionInfo::IMUL_RCP;
@ -448,27 +450,34 @@ namespace RandomX {
instr.setImm32(imm32_);
}
static LightInstruction createForSlot(Blake2Generator& gen, int slotSize, bool isLast = false, bool complex = false) {
static LightInstruction createForSlot(Blake2Generator& gen, int slotSize, int fetchType, bool isLast, bool isFirst) {
switch (slotSize)
{
case 3:
if (isLast) {
return create(slot_3L[gen.getByte() & 3], gen);
}
else if (complex) {
else if (false && isFirst && fetchType == 0) {
return create(slot_3C[gen.getByte() & 3], gen);
}
else {
return create(slot_3[gen.getByte() & 1], gen);
}
case 4:
return create(slot_4[gen.getByte() & 3], gen);
if (fetchType == 3 && !isLast) {
return create(&LightInstructionInfo::IMUL_R, gen);
}
else {
return create(slot_4[gen.getByte() & 1], gen);
}
case 7:
if (false && isLast) {
return create(slot_7L, gen);
}
else {
return create(slot_7[gen.getByte() & 3], gen);
if (false && isFirst) {
return create(&LightInstructionInfo::IMUL_C, gen);
} else {
return create(slot_7[gen.getByte() & 1], gen);
}
case 10:
return create(slot_10, gen);
@ -664,7 +673,11 @@ namespace RandomX {
constexpr int V4_SRC_INDEX_BITS = 3;
constexpr int V4_DST_INDEX_BITS = 3;
constexpr int CYCLE_MAP_SIZE = RANDOMX_LPROG_LATENCY + 3;
#ifndef _DEBUG
constexpr bool TRACE = false;
#else
constexpr bool TRACE = true;
#endif
static int blakeCounter = 0;
@ -803,7 +816,7 @@ namespace RandomX {
constexpr int MAX_ATTEMPTS = 4;
while(!portsSaturated) {
fetchLine = fetchLine->fetchNext(currentInstruction.getType(), gen);
fetchLine = fetchLine->fetchNext(currentInstruction.getType(), cycle, mulCount, gen);
if (TRACE) std::cout << "; ------------- fetch cycle " << cycle << " (" << fetchLine->getName() << ")" << std::endl;
mopIndex = 0;
@ -813,7 +826,7 @@ namespace RandomX {
if (instrIndex >= currentInstruction.getInfo().getSize()) {
if (portsSaturated)
break;
currentInstruction = LightInstruction::createForSlot(gen, fetchLine->getCounts()[mopIndex], fetchLine->getSize() == mopIndex + 1, fetchLine->getIndex() == 0 && mopIndex == 0);
currentInstruction = LightInstruction::createForSlot(gen, fetchLine->getCounts()[mopIndex], fetchLine->getIndex(), fetchLine->getSize() == mopIndex + 1, mopIndex == 0);
instrIndex = 0;
if (TRACE) std::cout << "; " << currentInstruction.getInfo().getName() << std::endl;
}

16
src/asm/program_sshash_load.inc
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@ -1,8 +1,8 @@
;xor r8, qword ptr [rbx+0]
;xor r9, qword ptr [rbx+8]
;xor r10, qword ptr [rbx+16]
;xor r11, qword ptr [rbx+24]
;xor r12, qword ptr [rbx+32]
;xor r13, qword ptr [rbx+40]
;xor r14, qword ptr [rbx+48]
;xor r15, qword ptr [rbx+56]
xor r8, qword ptr [rbx+0]
xor r9, qword ptr [rbx+8]
xor r10, qword ptr [rbx+16]
xor r11, qword ptr [rbx+24]
xor r12, qword ptr [rbx+32]
xor r13, qword ptr [rbx+40]
xor r14, qword ptr [rbx+48]
xor r15, qword ptr [rbx+56]

2
src/asm/program_sshash_prefetch.inc
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@ -1,4 +1,4 @@
and rbx, 4194303
shl rbx, 6
add rbx, rdi
; prefetchnta byte ptr [rbx]
prefetchnta byte ptr [rbx]

2
src/configuration.h
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@ -37,7 +37,7 @@ along with RandomX. If not, see<http://www.gnu.org/licenses/>.
//Number of random Cache accesses per Dataset block. Minimum is 2.
#define RANDOMX_CACHE_ACCESSES 8
#define RANDOMX_LPROG_LATENCY 130
#define RANDOMX_LPROG_LATENCY 170
#define RANDOMX_LPROG_ASIC_LATENCY 84
#define RANDOMX_LPROG_MIN_SIZE 225
#define RANDOMX_LPROG_MAX_SIZE 512

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