1 files changed, 51 insertions, 22 deletions

diff --git a/indra/llcommon/llprocessor.cpp b/indra/llcommon/llprocessor.cpp
index 35d08d8de9..0e180d9915 100644
--- a/indra/llcommon/llprocessor.cpp
+++ b/indra/llcommon/llprocessor.cpp
@@ -896,19 +896,55 @@ public:
 };
 
 #elif LL_LINUX
+
+// *NOTE:Mani - eww, macros! srry.
+#define LLPI_SET_INFO_STRING(llpi_id, cpuinfo_id) \
+        if (!cpuinfo[cpuinfo_id].empty()) \
+        { setInfo(llpi_id, cpuinfo[cpuinfo_id]);}
+
+#define LLPI_SET_INFO_INT(llpi_id, cpuinfo_id) \
+        {\
+            S32 result; \
+            if (!cpuinfo[cpuinfo_id].empty() \
+                && LLStringUtil::convertToS32(cpuinfo[cpuinfo_id], result)) \
+            { setInfo(llpi_id, result);} \
+        }
+
 const char CPUINFO_FILE[] = "/proc/cpuinfo";
 
-class LLProcessorInfoLinuxImpl : public LLProcessorInfoImpl
-{
+class LLProcessorInfoLinuxImpl : public LLProcessorInfoImpl {
 public:
-    LLProcessorInfoLinuxImpl()
-    {
+    LLProcessorInfoLinuxImpl() {
         get_proc_cpuinfo();
     }
 
     virtual ~LLProcessorInfoLinuxImpl() {}
+
 private:
 
+    F64 getCPUMaxMHZ()
+    {
+        // Nicky: We just look into cpu0. In theory we could iterate over all cores
+        // "/sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq"
+        // But those should not fluctuate that much?
+        std::ifstream fIn { "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" };
+
+        if( !fIn.is_open() )
+            return 0.0;
+
+        std::string strLine;
+        fIn >> strLine;
+        if( strLine.empty() )
+            return 0.0l;
+
+        F64 mhz {};
+        if( !LLStringUtil::convertToF64(strLine, mhz ) )
+            return 0.0;
+
+        mhz = mhz / 1000.0;
+        return mhz;
+    }
+
     void get_proc_cpuinfo()
     {
         std::map< std::string, std::string > cpuinfo;
@@ -937,30 +973,23 @@ private:
                 std::string llinename(linename);
                 LLStringUtil::toLower(llinename);
                 std::string lineval( spacespot + 1, nlspot );
-                cpuinfo[ llinename ] = lineval;
+                    cpuinfo[ llinename ] = lineval;
             }
             fclose(cpuinfo_fp);
         }
 # if LL_X86
 
-// *NOTE:Mani - eww, macros! srry.
-#define LLPI_SET_INFO_STRING(llpi_id, cpuinfo_id) \
-        if (!cpuinfo[cpuinfo_id].empty()) \
-        { setInfo(llpi_id, cpuinfo[cpuinfo_id]);}
-
-#define LLPI_SET_INFO_INT(llpi_id, cpuinfo_id) \
-        {\
-            S32 result; \
-            if (!cpuinfo[cpuinfo_id].empty() \
-                && LLStringUtil::convertToS32(cpuinfo[cpuinfo_id], result)) \
-            { setInfo(llpi_id, result);} \
+        F64 mhzFromSys = getCPUMaxMHZ();
+        F64 mhzFromProc {};
+        if( !LLStringUtil::convertToF64(cpuinfo["cpu mhz"], mhzFromProc ) )
+            mhzFromProc = 0.0;
+        if (mhzFromSys > 1.0 && mhzFromSys > mhzFromProc )
+        {
+            setInfo( eFrequency, mhzFromSys );
         }
-
-        F64 mhz;
-        if (LLStringUtil::convertToF64(cpuinfo["cpu mhz"], mhz)
-            && 200.0 < mhz && mhz < 10000.0)
+        else if (  200.0 < mhzFromProc && mhzFromProc < 10000.0)
         {
-            setInfo(eFrequency,(F64)(mhz));
+            setInfo(eFrequency,(F64)(mhzFromProc));
         }
 
         LLPI_SET_INFO_STRING(eBrandName, "model name");
@@ -970,7 +999,7 @@ private:
         LLPI_SET_INFO_INT(eModel, "model");
 
 
-        S32 family = 0;
+        S32 family{};
         if (!cpuinfo["cpu family"].empty()
             && LLStringUtil::convertToS32(cpuinfo["cpu family"], family))
         {