From 6163d27f145817c7215361125a088a943cb1b646 Mon Sep 17 00:00:00 2001
From: XMRig <support@xmrig.com>
Date: Tue, 10 Dec 2019 11:56:31 +0700
Subject: [PATCH] Added command line option --randomx-1gb-pages

---
 README.md                            | 1 +
 src/base/kernel/interfaces/IConfig.h | 1 +
 src/core/config/ConfigTransform.cpp  | 3 +++
 src/core/config/Config_platform.h    | 2 ++
 src/core/config/usage.h              | 1 +
 5 files changed, 8 insertions(+)

diff --git a/README.md b/README.md
index 7563ff2d..ce223261 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,7 @@ CPU backend:
       --randomx-init=N          threads count to initialize RandomX dataset
       --randomx-no-numa         disable NUMA support for RandomX
       --randomx-mode=MODE       RandomX mode: auto, fast, light
+      --randomx-1gb-pages       use 1GB hugepages for dataset (Linux only)
 
 API:
       --api-worker-id=ID        custom worker-id for API
diff --git a/src/base/kernel/interfaces/IConfig.h b/src/base/kernel/interfaces/IConfig.h
index dbbf82cd..94b5f90a 100644
--- a/src/base/kernel/interfaces/IConfig.h
+++ b/src/base/kernel/interfaces/IConfig.h
@@ -90,6 +90,7 @@ public:
         RandomXInitKey       = 1022,
         RandomXNumaKey       = 1023,
         RandomXModeKey       = 1029,
+        RandomX1GbPagesKey   = 1031,
         CPUMaxThreadsKey     = 1026,
         MemoryPoolKey        = 1027,
         YieldKey             = 1030,
diff --git a/src/core/config/ConfigTransform.cpp b/src/core/config/ConfigTransform.cpp
index b9f66678..20a885ba 100644
--- a/src/core/config/ConfigTransform.cpp
+++ b/src/core/config/ConfigTransform.cpp
@@ -165,6 +165,9 @@ void xmrig::ConfigTransform::transform(rapidjson::Document &doc, int key, const
 
     case IConfig::RandomXModeKey: /* --randomx-mode */
         return set(doc, kRandomX, "mode", arg);
+
+    case IConfig::RandomX1GbPagesKey: /* --randomx-1gb-pages */
+        return set(doc, kRandomX, "1gb-pages", true);
 #   endif
 
 #   ifdef XMRIG_FEATURE_OPENCL
diff --git a/src/core/config/Config_platform.h b/src/core/config/Config_platform.h
index a866c128..2a606501 100644
--- a/src/core/config/Config_platform.h
+++ b/src/core/config/Config_platform.h
@@ -98,6 +98,8 @@ static const option options[] = {
     { "randomx-init",          1, nullptr, IConfig::RandomXInitKey        },
     { "randomx-no-numa",       0, nullptr, IConfig::RandomXNumaKey        },
     { "randomx-mode",          1, nullptr, IConfig::RandomXModeKey        },
+    { "randomx-1gb-pages",     0, nullptr, IConfig::RandomX1GbPagesKey    },
+    { "1gb-pages",             0, nullptr, IConfig::RandomX1GbPagesKey    },
 #   endif
 #   ifdef XMRIG_FEATURE_OPENCL
     { "opencl",                0, nullptr, IConfig::OclKey                },
diff --git a/src/core/config/usage.h b/src/core/config/usage.h
index 38a48701..03526148 100644
--- a/src/core/config/usage.h
+++ b/src/core/config/usage.h
@@ -88,6 +88,7 @@ static inline const std::string &usage()
     u += "      --randomx-init=N          threads count to initialize RandomX dataset\n";
     u += "      --randomx-no-numa         disable NUMA support for RandomX\n";
     u += "      --randomx-mode=MODE       RandomX mode: auto, fast, light\n";
+    u += "      --randomx-1gb-pages       use 1GB hugepages for dataset (Linux only)\n";
 #   endif
 
 #   ifdef XMRIG_FEATURE_HTTP