Index: leahi_dialin/td/modules/valves.py
===================================================================
diff -u -r9c2fab5b413da62b218e6a9a12a5752e974071a0 -r820c94585ab5d85c40395e828c4dfe2da164c105
--- leahi_dialin/td/modules/valves.py	(.../valves.py)	(revision 9c2fab5b413da62b218e6a9a12a5752e974071a0)
+++ leahi_dialin/td/modules/valves.py	(.../valves.py)	(revision 820c94585ab5d85c40395e828c4dfe2da164c105)
@@ -16,6 +16,7 @@
 
 # Module imports
 from logging import Logger
+import time
 
 # Project imports
 from leahi_dialin.common.constants import NO_RESET
@@ -55,6 +56,7 @@
         # The Valves data in dictionary format
         self.valves_status = {td_enum_repository.TDValveNames.H1_VALV.name: {},
                               td_enum_repository.TDValveNames.H19_VALV.name: {}}
+        self.handler_execution_times = []
 
 
     @publish(["msg_id_td_valves_data", "valves_status", "td_valves_timestamp"])
@@ -66,6 +68,7 @@
         @param message: published TD valves data message
         @returns none
         """
+        start = time.perf_counter()
         msg_list = []
         msg_list.append(('Valve',           DataTypes.U32))
         msg_list.append(('State',           DataTypes.U32))
@@ -90,6 +93,7 @@
             # Update the valves dictionary
             self.valves_status[result['Valve']] = result
         self.td_valves_timestamp = timestamp
+        self.handler_execution_times.append(time.perf_counter() - start)
 
 
     def cmd_valves_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: