Index: leahi_dialin/td/modules/treatment.py
===================================================================
diff -u -r489ce5ef49041b863501b7fecd6e4716e7dcaa9f -r0762e3a03157e5f3428387a6914a13ed38d3ddca
--- leahi_dialin/td/modules/treatment.py	(.../treatment.py)	(revision 489ce5ef49041b863501b7fecd6e4716e7dcaa9f)
+++ leahi_dialin/td/modules/treatment.py	(.../treatment.py)	(revision 0762e3a03157e5f3428387a6914a13ed38d3ddca)
@@ -16,11 +16,13 @@
 
 # Module imports
 from logging import Logger
+import time
 
 # Project imports
 from leahi_dialin.common.constants import NO_RESET
 from leahi_dialin.common.generic_defs import DataTypes
 from leahi_dialin.common.msg_ids import MsgIds
+from leahi_dialin.common.msg_ids import MsgIds
 from leahi_dialin.common.override_templates import cmd_generic_override
 from leahi_dialin.common import td_enum_repository
 from leahi_dialin.protocols.CAN import CanMessenger, CanChannels
@@ -119,6 +121,7 @@
 
         # Treatment Parameters Data. Most recent response.
         self.tx_param_req_timestamp = 0             #: The timestamp of the latest Treatment Parameters Request message
+        self.handler_execution_times = []
         self.treatment_paramters = {
             'blood_flow_rate': 0,                   # The Blood flow rate
             'dialysate_flow_rate': 0,               # The Dialysate flow rate
@@ -228,6 +231,7 @@
         @param message:  published treatment parameter range data message
         @return: none
         """
+        start = time.perf_counter()
         msg_list = []
         msg_list.append((self.treatment_param_ranges, 'min_tx_time',    DataTypes.U32))
         msg_list.append((self.treatment_param_ranges, 'max_tx_time',    DataTypes.U32))
@@ -238,6 +242,7 @@
 
         self.process_into_vars(decoder_list = msg_list, message = message)
         self.tx_params_timestamp = timestamp
+        self.handler_execution_times.append((timestamp, message, time.perf_counter() - start))
 
 
     @publish(["MSG_ID_TD_FLUID_BOLUS_DATA", "tgt_saline_volume","cum_saline_volume","bol_saline_volume",