Option "yield" enabled by default and added command line option --cpu-no-yield.

README.md

@@ -59,6 +59,7 @@ CPU backend:
       --cpu-priority            set process priority (0 idle, 2 normal to 5 highest)
       --cpu-max-threads-hint=N  maximum CPU threads count (in percentage) hint for autoconfig
       --cpu-memory-pool=N       number of 2 MB pages for persistent memory pool, -1 (auto), 0 (disable)
+      --cpu-no-yield            prefer maximum hashrate rather than system response/stability
       --no-huge-pages           disable huge pages support
       --asm=ASM                 ASM optimizations, possible values: auto, none, intel, ryzen, bulldozer
       --randomx-init=N          threads count to initialize RandomX dataset

doc/CPU.md

@@ -99,4 +99,7 @@ Allow override automatically detected Argon2 implementation, this option added m
 Maximum CPU threads count (in percentage) hint for autoconfig. [CPU_MAX_USAGE.md](CPU_MAX_USAGE.md)
 
 #### `memory-pool` (since v4.3.0)
-Use continuous, persistent memory block for mining threads, useful for preserve huge pages allocation while algorithm swithing. Default value `false` (feature disabled) or `true` or specific count of 2 MB huge pages.
+Use continuous, persistent memory block for mining threads, useful for preserve huge pages allocation while algorithm swithing. Possible values `false` (feature disabled, by default) or `true` or specific count of 2 MB huge pages.
+
+#### `yield` (since v5.1.1)
+Prefer system better system response/stability `true` (default value) or maximum hashrate `false`.

src/backend/cpu/CpuConfig.h

@@ -73,7 +73,7 @@ private:
     bool m_enabled       = true;
     bool m_hugePages     = true;
     bool m_shouldSave    = false;
-    bool m_yield         = false;
+    bool m_yield         = true;
     int m_memoryPool     = 0;
     int m_priority       = -1;
     String m_argon2Impl;

src/base/kernel/interfaces/IConfig.h

@@ -92,6 +92,7 @@ public:
         RandomXModeKey       = 1029,
         CPUMaxThreadsKey     = 1026,
         MemoryPoolKey        = 1027,
+        YieldKey             = 1030,
 
         // xmrig amd
         OclPlatformKey       = 1400,

src/config.json

@@ -25,7 +25,7 @@
         "hw-aes": null,
         "priority": null,
         "memory-pool": false,
-        "yield": false,
+        "yield": true,
         "max-threads-hint": 100,
         "asm": true,
         "argon2-impl": null,

src/core/config/ConfigTransform.cpp

@@ -147,7 +147,9 @@ void xmrig::ConfigTransform::transform(rapidjson::Document &doc, int key, const
 
     case IConfig::MemoryPoolKey: /* --cpu-memory-pool */
         return set(doc, kCpu, "memory-pool", static_cast<int64_t>(strtol(arg, nullptr, 10)));
-        break;
+
+    case IConfig::YieldKey: /* --cpu-no-yield */
+        return set(doc, kCpu, "yield", false);
 
 #   ifdef XMRIG_FEATURE_ASM
     case IConfig::AssemblyKey: /* --asm */

src/core/config/Config_default.h

@@ -50,6 +50,7 @@ R"===(
     "colors": true,
     "randomx": {
         "init": -1,
+        "mode": "auto",
         "numa": true
     },
     "cpu": {
@@ -58,6 +59,7 @@ R"===(
         "hw-aes": null,
         "priority": null,
         "memory-pool": false,
+        "yield": true,
         "max-threads-hint": 100,
         "asm": true,
         "argon2-impl": null,

src/core/config/Config_platform.h

@@ -86,6 +86,7 @@ static const option options[] = {
     { "max-cpu-usage",         1, nullptr, IConfig::CPUMaxThreadsKey      },
     { "cpu-max-threads-hint",  1, nullptr, IConfig::CPUMaxThreadsKey      },
     { "cpu-memory-pool",       1, nullptr, IConfig::MemoryPoolKey         },
+    { "cpu-no-yield",          0, nullptr, IConfig::YieldKey              },
 #   ifdef XMRIG_FEATURE_TLS
     { "tls",                   0, nullptr, IConfig::TlsKey                },
     { "tls-fingerprint",       1, nullptr, IConfig::FingerprintKey        },

src/core/config/usage.h

@@ -80,6 +80,7 @@ static inline const std::string &usage()
     u += "      --cpu-priority            set process priority (0 idle, 2 normal to 5 highest)\n";
     u += "      --cpu-max-threads-hint=N  maximum CPU threads count (in percentage) hint for autoconfig\n";
     u += "      --cpu-memory-pool=N       number of 2 MB pages for persistent memory pool, -1 (auto), 0 (disable)\n";
+    u += "      --cpu-no-yield            prefer maximum hashrate rather than system response/stability\n";
     u += "      --no-huge-pages           disable huge pages support\n";
     u += "      --asm=ASM                 ASM optimizations, possible values: auto, none, intel, ryzen, bulldozer\n";