diff --git a/include/blt/profiling/profiler_v2.h b/include/blt/profiling/profiler_v2.h
index 4efa824..c9db06a 100644
--- a/include/blt/profiling/profiler_v2.h
+++ b/include/blt/profiling/profiler_v2.h
@@ -80,6 +80,7 @@ namespace blt
     };
     
     interval_t* createInterval(profile_t& profiler, std::string interval_name);
+    
     void startInterval(interval_t* interval);
     
     void endInterval(interval_t* interval);
@@ -113,6 +114,11 @@ namespace blt
                 blt::startInterval(iv);
             }
             
+            explicit auto_interval(interval_t* iv): iv(iv)
+            {
+                blt::startInterval(iv);
+            }
+            
             auto_interval(const auto_interval& i) = delete;
             
             auto_interval& operator=(const auto_interval& i) = delete;
diff --git a/src/blt/profiling/profiler_v2.cpp b/src/blt/profiling/profiler_v2.cpp
index 1e42be4..d3a5e68 100644
--- a/src/blt/profiling/profiler_v2.cpp
+++ b/src/blt/profiling/profiler_v2.cpp
@@ -127,14 +127,14 @@ namespace blt
         // we want to use the largest unit possible to keep the numbers small
         // we might run into a case where something took 1000ns but other thing took 100s
         // which would be hard to deal with either way. So TODO
-        if (wall > 1e5 && wall <= 1e8 && container.wall == unit::NS)
+        if (wall > 1e6 && wall < 1e9 && container.wall == unit::NS)
             container.wall = unit::MS;
-        else if (wall > 1e8)
+        else if (wall > 1e9)
             container.wall = unit::S;
         
-        if (thread > 1e5 && thread <= 1e8 && container.thread == unit::NS)
+        if (thread > 1e6 && thread < 1e9 && container.thread == unit::NS)
             container.thread = unit::MS;
-        else if (thread > 1e8)
+        else if (thread > 1e9)
             container.thread = unit::S;
         return container;
     }