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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@ -407,8 +407,12 @@ xmrig::cn_hash_fun xmrig::CnHash::fn(const Algorithm &algorithm, AlgoVariant av,
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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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if ((av == AV_SINGLE) && (assembly != Assembly::NONE) && (Cpu::info()->arch() == ICpuInfo::ARCH_ZEN3) && (Cpu::info()->model() == 0x21)) {
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// cn-heavy optimization for Zen3/Zen4 CPUs
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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 ((av == AV_SINGLE) && (assembly != Assembly::NONE) && (is_vermeer || is_raphael)) {
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switch (algorithm.id()) {
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case Algorithm::CN_HEAVY_0:
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return cryptonight_single_hash<Algorithm::CN_HEAVY_0, false, 3>;
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