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Integrated thread based double hash mode

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This commit is contained in:
BenDroid 2017-11-30 22:11:58 +01:00
parent 196beded79
commit daa4d912b3
17 changed files with 161 additions and 134 deletions
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30
src/Mem_unix.cpp
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@ -38,12 +38,22 @@ bool Mem::allocate(const Options* options)
m_algo = options->algo();
m_threads = options->threads();
m_doubleHash = options->doubleHash();
m_doubleHashThreadMask = options->doubleHashThreadMask();
m_memorySize = 0;
const int ratio = (m_doubleHash && m_algo != Options::ALGO_CRYPTONIGHT_LITE) ? 2 : 1;
const size_t size = MEMORY * (m_threads * ratio + 1);
size_t scratchPadSize = m_algo == Options::ALGO_CRYPTONIGHT ? MEMORY : MEMORY_LITE;
for (int i=0; i < m_threads; i++) {
m_memorySize += sizeof(cryptonight_ctx);
if (isDoubleHash(i)) {
m_memorySize += scratchPadSize*2;
} else {
m_memorySize += scratchPadSize;
}
}
if (!options->hugePages()) {
m_memory = static_cast<uint8_t*>(_mm_malloc(size, 16));
m_memory = static_cast<uint8_t*>(_mm_malloc(m_memorySize, 16));
return true;
}
@ -54,20 +64,20 @@ bool Mem::allocate(const Options* options)
# elif defined(__FreeBSD__)
m_memory = static_cast<uint8_t*>(mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0));
# else
m_memory = static_cast<uint8_t*>(mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0));
m_memory = static_cast<uint8_t*>(mmap(0, m_memorySize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0));
# endif
if (m_memory == MAP_FAILED) {
m_memory = static_cast<uint8_t*>(_mm_malloc(size, 16));
m_memory = static_cast<uint8_t*>(_mm_malloc(m_memorySize, 16));
return true;
}
m_flags |= HugepagesEnabled;
if (madvise(m_memory, size, MADV_RANDOM | MADV_WILLNEED) != 0) {
if (madvise(m_memory, m_memorySize, MADV_RANDOM | MADV_WILLNEED) != 0) {
LOG_ERR("madvise failed");
}
if (mlock(m_memory, size) == 0) {
if (mlock(m_memory, m_memorySize) == 0) {
m_flags |= Lock;
}
@ -77,14 +87,12 @@ bool Mem::allocate(const Options* options)
void Mem::release()
{
const int size = MEMORY * (m_threads + 1);
if (m_flags & HugepagesEnabled) {
if (m_flags & Lock) {
munlock(m_memory, size);
munlock(m_memory, m_memorySize);
}
munmap(m_memory, size);
munmap(m_memory, m_memorySize);
}
else {
_mm_free(m_memory);