v5.2.1

RandomX boost script for Linux

CHANGELOG.md

@@ -1,9 +1,14 @@
+# v5.2.1
+- [#1408](https://github.com/xmrig/xmrig/pull/1408) Added RandomX boost script for Linux (if you don't like run miner with root privileges).
+- Added support for [AMD Ryzen MSR registers](https://www.reddit.com/r/MoneroMining/comments/e962fu/9526_hs_on_ryzen_7_3700x_xmrig_520_1gb_pages_msr/) (Linux only).
+- Fixed command line option `--randomx-wrmsr` option without parameters.
+
 # v5.2.0
 - **[#1388](https://github.com/xmrig/xmrig/pull/1388) Added [1GB huge pages support](https://xmrig.com/docs/miner/hugepages#onegb-huge-pages) for Linux.**
   - Added new option `1gb-pages` in `randomx` object with command line equivalent `--randomx-1gb-pages`.
   - Added automatic huge pages configuration on Linux if use the miner with root privileges.
 - **Added [automatic Intel prefetchers configuration](https://xmrig.com/docs/miner/randomx-optimization-guide#intel-specific-optimizations) on Linux.**
-   - Added new option `wrmsr` in `randomx` object with command line equivalent `--randomx-wrmsr`.
+   - Added new option `wrmsr` in `randomx` object with command line equivalent `--randomx-wrmsr=6`.
 - [#1396](https://github.com/xmrig/xmrig/pull/1396) [#1401](https://github.com/xmrig/xmrig/pull/1401) New performance optimizations for Ryzen CPUs. 
 - [#1385](https://github.com/xmrig/xmrig/issues/1385) Added `max-threads-hint` option support for RandomX dataset initialization threads.  
 - [#1386](https://github.com/xmrig/xmrig/issues/1386) Added `priority` option support for RandomX dataset initialization threads. 

cmake/randomx.cmake

@@ -79,7 +79,7 @@ if (WITH_RANDOMX)
             )
     endif()
 
-    if (XMRIG_OS_LINUX)
+    if (XMRIG_OS_LINUX AND NOT XMRIG_ARM)
         list(APPEND SOURCES_CRYPTO src/crypto/rx/Rx_linux.cpp)
     endif()
 else()

scripts/randomx_boost.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+modprobe msr
+
+if cat /proc/cpuinfo | grep "AMD Ryzen" > /dev/null;
+	then
+		echo "Detected Ryzen"
+		wrmsr -a 0xc0011022 0x510000
+		wrmsr -a 0xc001102b 0x1808cc16
+		wrmsr -a 0xc0011020 0
+		wrmsr -a 0xc0011021 0x40
+		echo "MSR register values for Ryzen applied"
+elif cat /proc/cpuinfo | grep "Intel" > /dev/null;
+	then
+		echo "Detected Intel"
+		wrmsr -a 0x1a4 6
+		echo "MSR register values for Intel applied"
+else
+	echo "No supported CPU detected"
+fi

src/base/net/stratum/Job.h

@@ -99,7 +99,7 @@ public:
 #   endif
 
     static inline uint32_t *nonce(uint8_t *blob)   { return reinterpret_cast<uint32_t*>(blob + 39); }
-    static inline uint64_t toDiff(uint64_t target) { return 0xFFFFFFFFFFFFFFFFULL / target; }
+    static inline uint64_t toDiff(uint64_t target) { return target ? (0xFFFFFFFFFFFFFFFFULL / target) : 0; }
 
     inline bool operator!=(const Job &other) const { return !isEqual(other); }
     inline bool operator==(const Job &other) const { return isEqual(other); }

src/config.json

@@ -17,7 +17,7 @@
         "init": -1,
         "mode": "auto",
         "1gb-pages": false,
-        "wrmsr": 6,
+        "wrmsr": true,
         "numa": true
     },
     "cpu": {

src/core/config/ConfigTransform.cpp

@@ -170,6 +170,10 @@ void xmrig::ConfigTransform::transform(rapidjson::Document &doc, int key, const
         return set(doc, kRandomX, "1gb-pages", true);
 
     case IConfig::RandomXWrmsrKey: /* --randomx-wrmsr */
+        if (arg == nullptr) {
+            return set(doc, kRandomX, "wrmsr", true);
+        }
+
         return set(doc, kRandomX, "wrmsr", static_cast<int64_t>(strtol(arg, nullptr, 10)));
 #   endif
 

src/core/config/Config_platform.h

@@ -100,7 +100,7 @@ static const option options[] = {
     { "randomx-mode",          1, nullptr, IConfig::RandomXModeKey        },
     { "randomx-1gb-pages",     0, nullptr, IConfig::RandomX1GbPagesKey    },
     { "1gb-pages",             0, nullptr, IConfig::RandomX1GbPagesKey    },
-    { "randomx-wrmsr",         1, nullptr, IConfig::RandomXWrmsrKey       },
+    { "randomx-wrmsr",         2, nullptr, IConfig::RandomXWrmsrKey       },
 #   endif
 #   ifdef XMRIG_FEATURE_OPENCL
     { "opencl",                0, nullptr, IConfig::OclKey                },

src/crypto/rx/Rx.cpp

@@ -115,7 +115,7 @@ void xmrig::Rx::init(IRxListener *listener)
 }
 
 
-#ifndef XMRIG_OS_LINUX
+#if !defined(XMRIG_OS_LINUX) || defined(XMRIG_ARM)
 void xmrig::Rx::osInit(const RxConfig &)
 {
 }

src/crypto/rx/RxConfig.cpp

@@ -109,7 +109,13 @@ rapidjson::Value xmrig::RxConfig::toJSON(rapidjson::Document &doc) const
     obj.AddMember(StringRef(kInit),         m_threads, allocator);
     obj.AddMember(StringRef(kMode),         StringRef(modeName()), allocator);
     obj.AddMember(StringRef(kOneGbPages),   m_oneGbPages, allocator);
-    obj.AddMember(StringRef(kWrmsr),        m_wrmsr < 0 ? Value(kFalseType) : Value(m_wrmsr), allocator);
+
+    if (m_wrmsr < 0 || m_wrmsr == 6) {
+        obj.AddMember(StringRef(kWrmsr), m_wrmsr == 6, allocator);
+    }
+    else {
+        obj.AddMember(StringRef(kWrmsr), m_wrmsr, allocator);
+    }
 
 #   ifdef XMRIG_FEATURE_HWLOC
     if (!m_nodeset.empty()) {

src/crypto/rx/Rx_linux.cpp

@@ -88,27 +88,44 @@ static bool wrmsr_on_all_cpus(uint32_t reg, uint64_t value)
     free(namelist);
 
     if (errors) {
-        LOG_WARN(CLEAR "%s" YELLOW_BOLD_S "cannot set MSR 0x%04" PRIx32 " to 0x%04" PRIx64, rx_tag(), reg, value);
+        LOG_WARN(CLEAR "%s" YELLOW_BOLD_S "cannot set MSR 0x%08" PRIx32 " to 0x%08" PRIx64, rx_tag(), reg, value);
     }
 
     return errors == 0;
 }
 
 
+static bool wrmsr_modprobe()
+{
+    if (system("/sbin/modprobe msr > /dev/null 2>&1") != 0) {
+        LOG_WARN(CLEAR "%s" YELLOW_BOLD_S "msr kernel module is not available", rx_tag());
+
+        return false;
+    }
+
+    return true;
+}
+
+
 } // namespace xmrig
 
 
 void xmrig::Rx::osInit(const RxConfig &config)
 {
-    if (config.wrmsr() < 0 || Cpu::info()->vendor() != ICpuInfo::VENDOR_INTEL) {
+    if (config.wrmsr() < 0) {
         return;
     }
 
-    if (system("/sbin/modprobe msr > /dev/null 2>&1") != 0) {
-        LOG_WARN(CLEAR "%s" YELLOW_BOLD_S "msr kernel module is not available", rx_tag());
+    if (Cpu::info()->assembly() == Assembly::RYZEN && wrmsr_modprobe()) {
+        wrmsr_on_all_cpus(0xC0011022, 0x510000);
+        wrmsr_on_all_cpus(0xC001102b, 0x1808cc16);
+        wrmsr_on_all_cpus(0xC0011020, 0);
+        wrmsr_on_all_cpus(0xC0011021, 0x40);
 
         return;
     }
 
-    wrmsr_on_all_cpus(0x1a4, config.wrmsr());
+    if (Cpu::info()->vendor() == ICpuInfo::VENDOR_INTEL && wrmsr_modprobe()) {
+        wrmsr_on_all_cpus(0x1a4, config.wrmsr());
+    }
 }

src/version.h

@@ -28,7 +28,7 @@
 #define APP_ID        "xmrig"
 #define APP_NAME      "XMRig"
 #define APP_DESC      "XMRig miner"
-#define APP_VERSION   "5.2.0"
+#define APP_VERSION   "5.2.1"
 #define APP_DOMAIN    "xmrig.com"
 #define APP_SITE      "www.xmrig.com"
 #define APP_COPYRIGHT "Copyright (C) 2016-2019 xmrig.com"
@@ -36,7 +36,7 @@
 
 #define APP_VER_MAJOR  5
 #define APP_VER_MINOR  2
-#define APP_VER_PATCH  0
+#define APP_VER_PATCH  1
 
 #ifdef _MSC_VER
 #   if (_MSC_VER >= 1920)