5 files changed, 44 insertions, 10 deletions
diff --git a/indra/llcommon/llcallstack.h b/indra/llcommon/llcallstack.h
index 1f7a7689d7..5acf04a49f 100644
--- a/indra/llcommon/llcallstack.h
+++ b/indra/llcommon/llcallstack.h
@@ -78,3 +78,10 @@ struct LLContextStatus
 };
 
 LL_COMMON_API std::ostream& operator<<(std::ostream& s, const LLContextStatus& context_status);
+
+#define dumpStack(tag) \
+    if (debugLoggingEnabled(tag)) \
+    { \
+        LLCallStack cs; \
+        LL_DEBUGS(tag) << "STACK:\n" << "====================\n" << cs << "====================" << LL_ENDL; \
+    }
diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp
index 29de79dc64..ba71f4ddfb 100644
--- a/indra/llcommon/llerror.cpp
+++ b/indra/llcommon/llerror.cpp
@@ -29,6 +29,7 @@
 
 #include "llerror.h"
 #include "llerrorcontrol.h"
+#include "llsdutil.h"
 
 #include <cctype>
 #ifdef __GNUC__
@@ -393,7 +394,7 @@ namespace
 			 i != callSites.end();
 			 ++i)
 		{
-			(*i)->invalidate();
+            (*i)->invalidate();
 		}
 		
 		callSites.clear();
@@ -1508,18 +1509,16 @@ namespace LLError
 
 bool debugLoggingEnabled(const std::string& tag)
 {
-    const char* tags[] = {tag.c_str()};
-    ::size_t tag_count = 1;
-    LLError::CallSite _site(LLError::LEVEL_DEBUG, __FILE__, __LINE__, 
-                            typeid(_LL_CLASS_TO_LOG), __FUNCTION__, false, tags, tag_count);
-    if (LL_UNLIKELY(_site.shouldLog()))
-    {
-        return true;
-    }
-    else
+    LogLock lock;
+    if (!lock.ok())
     {
         return false;
     }
+        
+    LLError::SettingsConfigPtr s = LLError::Settings::getInstance()->getSettingsConfig();
+    LLError::ELevel level = LLError::LEVEL_DEBUG;
+    bool res = checkLevelMap(s->mTagLevelMap, tag, level);
+    return res;
 }
 
 
diff --git a/indra/llcommon/llmemory.h b/indra/llcommon/llmemory.h
index 5b17d9e3a4..f04ae5f5cb 100644
--- a/indra/llcommon/llmemory.h
+++ b/indra/llcommon/llmemory.h
@@ -60,6 +60,12 @@ class LLMutex ;
 LL_COMMON_API void ll_assert_aligned_func(uintptr_t ptr,U32 alignment);
 
 #ifdef SHOW_ASSERT
+// This is incredibly expensive - in profiling Windows RWD builds, 30%
+// of CPU time was in aligment checks.
+//#define ASSERT_ALIGNMENT
+#endif
+
+#ifdef ASSERT_ALIGNMENT
 #define ll_assert_aligned(ptr,alignment) ll_assert_aligned_func(uintptr_t(ptr),((U32)alignment))
 #else
 #define ll_assert_aligned(ptr,alignment)
diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index c45db3b185..9a02fecd72 100644
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -869,6 +869,25 @@ std::string LLStringOps::getDatetimeCode (std::string key)
 	}
 }
 
+std::string LLStringOps::getReadableNumber(F64 num)
+{
+    if (fabs(num)>=1e9)
+    {
+		return llformat("%.2lfB", num / 1e9);
+    }
+    else if (fabs(num)>=1e6)
+    {
+		return llformat("%.2lfM", num / 1e6);
+    }
+    else if (fabs(num)>=1e3)
+    {
+		return llformat("%.2lfK", num / 1e3);
+    }
+    else
+    {
+		return llformat("%.2lf", num);
+    }
+}
 
 namespace LLStringFn
 {
diff --git a/indra/llcommon/llstring.h b/indra/llcommon/llstring.h
index a4a5b393cb..68ee9db46b 100644
--- a/indra/llcommon/llstring.h
+++ b/indra/llcommon/llstring.h
@@ -211,6 +211,9 @@ public:
 	static bool getPacificDaylightTime(void) { return sPacificDaylightTime;}
 
 	static std::string getDatetimeCode (std::string key);
+
+    // Express a value like 1234567 as "1.23M" 
+    static std::string getReadableNumber(F64 num);
 };
 
 /**