RandomX: added MSR mod for Zen 4
+0.8% faster on Ryzen 9 7950X
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6 changed files with 30 additions and 10 deletions
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@ -77,8 +77,11 @@ xmrig::CpuWorker<N>::CpuWorker(size_t id, const CpuLaunchData &data) :
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{
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# ifdef XMRIG_ALGO_CN_HEAVY
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// cn-heavy optimization for Zen3 CPUs
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const bool is_vermeer = (Cpu::info()->arch() == ICpuInfo::ARCH_ZEN3) && (Cpu::info()->model() == 0x21);
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if ((N == 1) && (m_av == CnHash::AV_SINGLE) && (m_algorithm.family() == Algorithm::CN_HEAVY) && (m_assembly != Assembly::NONE) && is_vermeer) {
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const auto arch = Cpu::info()->arch();
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const uint32_t model = Cpu::info()->model();
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const bool is_vermeer = (arch == ICpuInfo::ARCH_ZEN3) && (model == 0x21);
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const bool is_raphael = (arch == ICpuInfo::ARCH_ZEN4) && (model == 0x61);
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if ((N == 1) && (m_av == CnHash::AV_SINGLE) && (m_algorithm.family() == Algorithm::CN_HEAVY) && (m_assembly != Assembly::NONE) && (is_vermeer || is_raphael)) {
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std::lock_guard<std::mutex> lock(cn_heavyZen3MemoryMutex);
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if (!cn_heavyZen3Memory) {
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// Round up number of threads to the multiple of 8
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