Added option --no-huge-pages.

src/App.cpp

@@ -113,7 +113,7 @@ int App::exec()
         return 1;
     }
 
-    Mem::allocate(m_options->algo(), m_options->threads(), m_options->doubleHash());
+    Mem::allocate(m_options->algo(), m_options->threads(), m_options->doubleHash(), m_options->hugePages());
     Summary::print();
 
     Workers::start(m_options->affinity(), m_options->priority());

src/Mem.h

@@ -44,7 +44,7 @@ public:
         Lock               = 4
     };
 
-    static bool allocate(int algo, int threads, bool doubleHash);
+    static bool allocate(int algo, int threads, bool doubleHash, bool enabled);
     static cryptonight_ctx *create(int threadId);
     static void *calloc(size_t num, size_t size);
     static void release();

src/Mem_unix.cpp

@@ -33,7 +33,7 @@
 #include "Options.h"
 
 
-bool Mem::allocate(int algo, int threads, bool doubleHash)
+bool Mem::allocate(int algo, int threads, bool doubleHash, bool enabled)
 {
     m_algo       = algo;
     m_threads    = threads;
@@ -42,6 +42,11 @@ bool Mem::allocate(int algo, int threads, bool doubleHash)
     const int ratio   = (doubleHash && algo != Options::ALGO_CRYPTONIGHT_LITE) ? 2 : 1;
     const size_t size = MEMORY * (threads * ratio + 1);
 
+    if (!enabled) {
+        m_memory = static_cast<uint8_t*>(_mm_malloc(size, 16));
+        return true;
+    }
+
     m_flags |= HugepagesAvailable;
 
 #   if defined(__APPLE__)

src/Mem_win.cpp

@@ -144,7 +144,7 @@ static BOOL TrySetLockPagesPrivilege() {
 }
 
 
-bool Mem::allocate(int algo, int threads, bool doubleHash)
+bool Mem::allocate(int algo, int threads, bool doubleHash, bool enabled)
 {
     m_algo       = algo;
     m_threads    = threads;
@@ -153,6 +153,11 @@ bool Mem::allocate(int algo, int threads, bool doubleHash)
     const int ratio = (doubleHash && algo != Options::ALGO_CRYPTONIGHT_LITE) ? 2 : 1;
     const size_t size  = MEMORY * (threads * ratio + 1);
 
+    if (!enabled) {
+        m_memory = static_cast<uint8_t*>(_mm_malloc(size, 16));
+        return true;
+    }
+
     if (TrySetLockPagesPrivilege()) {
         m_flags |= HugepagesAvailable;
     }

src/Options.cpp

@@ -65,6 +65,7 @@ Options:\n\
   -R, --retry-pause=N   time to pause between retries (default: 5)\n\
       --cpu-affinity    set process affinity to CPU core(s), mask 0x3 for cores 0 and 1\n\
       --cpu-priority    set process priority (0 idle, 2 normal to 5 highest)\n\
+      --no-huge-pages   disable huge pages support\n\
       --no-color        disable colored output\n\
       --donate-level=N  donate level, default 5%% (5 minutes in 100 minutes)\n\
       --user-agent      set custom user-agent string for pool\n\
@@ -102,6 +103,7 @@ static struct option const options[] = {
     { "max-cpu-usage", 1, nullptr, 1004 },
     { "nicehash",      0, nullptr, 1006 },
     { "no-color",      0, nullptr, 1002 },
+    { "no-huge-pages", 0, nullptr, 1009 },
     { "pass",          1, nullptr, 'p'  },
     { "print-time",    1, nullptr, 1007 },
     { "retries",       1, nullptr, 'r'  },
@@ -126,6 +128,7 @@ static struct option const config_options[] = {
     { "cpu-affinity",  1, nullptr, 1020 },
     { "cpu-priority",  1, nullptr, 1021 },
     { "donate-level",  1, nullptr, 1003 },
+    { "huge-pages",    0, nullptr, 1009 },
     { "log-file",      1, nullptr, 'l'  },
     { "max-cpu-usage", 1, nullptr, 1004 },
     { "print-time",    1, nullptr, 1007 },
@@ -181,6 +184,7 @@ Options::Options(int argc, char **argv) :
     m_background(false),
     m_colors(true),
     m_doubleHash(false),
+    m_hugePages(true),
     m_ready(false),
     m_safe(false),
     m_syslog(false),
@@ -311,11 +315,14 @@ bool Options::parseArg(int key, const char *arg)
     case 'B':  /* --background */
     case 'k':  /* --keepalive */
     case 'S':  /* --syslog */
-    case 1002: /* --no-color */
     case 1005: /* --safe */
     case 1006: /* --nicehash */
         return parseBoolean(key, true);
 
+    case 1002: /* --no-color */
+    case 1009: /* --no-huge-pages */
+        return parseBoolean(key, false);
+
     case 'V': /* --version */
         showVersion();
         return false;
@@ -462,6 +469,10 @@ bool Options::parseBoolean(int key, bool enable)
         m_pools.back()->setNicehash(enable);
         break;
 
+    case 1009: /* --no-huge-pages */
+        m_hugePages = enable;
+        break;
+
     case 2000: /* colors */
         m_colors = enable;
         break;

src/Options.h

@@ -57,6 +57,7 @@ public:
     inline bool background() const                { return m_background; }
     inline bool colors() const                    { return m_colors; }
     inline bool doubleHash() const                { return m_doubleHash; }
+    inline bool hugePages() const                 { return m_hugePages; }
     inline bool syslog() const                    { return m_syslog; }
     inline const char *logFile() const            { return m_logFile; }
     inline const char *userAgent() const          { return m_userAgent; }
@@ -102,6 +103,7 @@ private:
     bool m_background;
     bool m_colors;
     bool m_doubleHash;
+    bool m_hugePages;
     bool m_ready;
     bool m_safe;
     bool m_syslog;