Index: leahi_dialin/dd/modules/balancing_chamber.py
===================================================================
diff -u -ra68abf5742f400a8d97f4cf9ee4ce64edd64531c -rcb6c96886e5312796a48df6b1ec99329eb3fcee3
--- leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision a68abf5742f400a8d97f4cf9ee4ce64edd64531c)
+++ leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision cb6c96886e5312796a48df6b1ec99329eb3fcee3)
@@ -16,11 +16,11 @@
 
 # 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_defs import MsgIds
+from leahi_dialin.common.msg_ids import MsgIds
 from leahi_dialin.common.override_templates import cmd_generic_broadcast_interval_override, cmd_generic_override
 from leahi_dialin.protocols.CAN import CanMessenger, CanChannels
 from leahi_dialin.utils.abstract_classes import AbstractSubSystem
@@ -58,8 +58,8 @@
         self.bal_chamber_switch_only_state = 0                  #: The balancing chamber's switch only state
         self.is_bal_chamber_switching_active = 0                #: Is balancing chamber switching active
         self.dd_bal_chamber_timestamp = 0                       #: The timestamp of the last message
+        self.handler_execution_times = []
 
-
     @publish(["msg_id_dd_bal_chamber_data",
               "execution_state", "switching_state",
               "switching_frequency",
@@ -74,6 +74,7 @@
         @param message:  published balancing chamber data message
         @return: None
         """
+        start = time.perf_counter()
         msg_list = []
         msg_list.append(('self.execution_state',                        DataTypes.U32))
         msg_list.append(('self.switching_state',                        DataTypes.U32))
@@ -88,8 +89,8 @@
                                message = message)
 
         self.dd_bal_chamber_timestamp = timestamp
+        self.handler_execution_times.append((timestamp, message, time.perf_counter() - start))
 
-
     def cmd_balancing_chamber_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int:
         """
         Constructs and sends the balancing chamber data broadcast interval override command