1 files changed, 15 insertions, 9 deletions

diff --git a/indra/llcommon/llprocessor.cpp b/indra/llcommon/llprocessor.cpp
index 2e94651083..718f471321 100644
--- a/indra/llcommon/llprocessor.cpp
+++ b/indra/llcommon/llprocessor.cpp
@@ -628,6 +628,8 @@ private:
 
 #elif LL_DARWIN
 
+#include <CoreFoundation/CoreFoundation.h>
+#include <IOKit/IOKitLib.h>
 #include <mach/machine.h>
 #include <sys/sysctl.h>
 
@@ -638,25 +640,21 @@ public:
     {
         getCPUIDInfo();
         uint64_t frequency = getSysctlInt64("hw.cpufrequency");
-        if (!frequency)
+        if (frequency == 0) // fallback to clockrate and tbfrequency
         {
-            auto tbfrequency = getSysctlInt64("hw.tbfrequency");
-            struct clockinfo clockrate;
-            auto clockrate_len = sizeof(clockrate);
-            if (!sysctlbyname("kern.clockrate", &clockrate, &clockrate_len, NULL, 0))
-                frequency = tbfrequency * clockrate.hz;
+            frequency = getSysctlClockrate() * getSysctlInt64("hw.tbfrequency");
         }
         setInfo(eFrequency, (F64)frequency  / (F64)1000000);
     }
 
-    virtual ~LLProcessorInfoDarwinImpl() {}
+    virtual ~LLProcessorInfoDarwinImpl() = default;
 
 private:
     int getSysctlInt(const char* name)
     {
         int result = 0;
         size_t len = sizeof(int);
-        int error = sysctlbyname(name, (void*)&result, &len, NULL, 0);
+        int error = sysctlbyname(name, (void*)&result, &len, nullptr, 0);
         return error == -1 ? 0 : result;
     }
 
@@ -664,7 +662,7 @@ private:
     {
         uint64_t value = 0;
         size_t size = sizeof(value);
-        int result = sysctlbyname(name, (void*)&value, &size, NULL, 0);
+        int result = sysctlbyname(name, (void*)&value, &size, nullptr, 0);
         if ( result == 0 )
         {
             if ( size == sizeof( uint64_t ) )
@@ -684,6 +682,14 @@ private:
         return result == -1 ? 0 : value;
     }
 
+    uint64_t getSysctlClockrate()
+    {
+        struct clockinfo clockrate{};
+        size_t size = sizeof(clockrate);
+        int error = sysctlbyname("kern.clockrate", &clockrate, &size, nullptr, 0);
+        return error == -1 ? 0 : clockrate.hz;
+    }
+
     void getCPUIDInfo()
     {
         size_t len = 0;