diff --git a/src/main/fc/mw.c b/src/main/fc/mw.c
index 92cd5f4cc..fe55d90ea 100644
--- a/src/main/fc/mw.c
+++ b/src/main/fc/mw.c
@@ -828,7 +828,7 @@ void taskMainPidLoop(uint32_t currentTime)
         runTaskMainSubprocesses = false;
     }
 
-    // DEBUG_PIDLOOP
+    // DEBUG_PIDLOOP, timings for:
     // 0 - gyroUpdate()
     // 1 - pidController()
     // 2 - subTaskMainSubprocesses()
diff --git a/src/main/scheduler/scheduler.c b/src/main/scheduler/scheduler.c
index 81400d484..a69ed6e53 100755
--- a/src/main/scheduler/scheduler.c
+++ b/src/main/scheduler/scheduler.c
@@ -32,6 +32,12 @@
 
 #include "drivers/system.h"
 
+// DEBUG_SCHEDULER, timings for:
+// 0 - gyroUpdate()
+// 1 - pidController()
+// 2 - time spent in scheduler
+// 3 - time spent executing check function
+
 static cfTask_t *currentTask = NULL;
 
 static uint32_t totalWaitingTasks;