Index: leahi_dialin/dd/modules/mixing_cntrl.py
===================================================================
diff -u -re412f48fe7363639f8e729d2274501ec02d51aa9 -r85ef20ba3241aa746fbdf54089c51705e55cbcf2
--- leahi_dialin/dd/modules/mixing_cntrl.py	(.../mixing_cntrl.py)	(revision e412f48fe7363639f8e729d2274501ec02d51aa9)
+++ leahi_dialin/dd/modules/mixing_cntrl.py	(.../mixing_cntrl.py)	(revision 85ef20ba3241aa746fbdf54089c51705e55cbcf2)
@@ -16,6 +16,7 @@
 
 # Module imports
 from logging import Logger
+import time
 
 # Project imports
 from leahi_dialin.common.constants import NO_RESET
@@ -100,6 +101,7 @@
         self.dd_acid_ki_gain = 0.0
 
         self.dd_mixing_control_timestamp = 0                   #: The timestamp of the last message
+        self.handler_execution_times = []
 
 
     @publish(["msg_id_dd_mixing_control_data",
@@ -121,6 +123,7 @@
         @param message:  published mixing control data message
         @return: None
         """
+        start = time.perf_counter()
         msg_list = []
 
         msg_list.append(('self.bicarb_mixing_state', DataTypes.U32))
@@ -168,6 +171,7 @@
                                message = message)
 
         self.dd_mixing_control_timestamp = timestamp
+        self.handler_execution_times.append((timestamp, message, time.perf_counter() - start))
 
 
     def cmd_dialysate_mixing_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: