Index: leahi_dialin/td/modules/buttons.py
===================================================================
diff -u -r1f2bf6d939eb4033dbedb7d7005494cc12fccbc6 -r8ad61b1fa2e79b11b1c3db53a3242662e8eb9adf
--- leahi_dialin/td/modules/buttons.py	(.../buttons.py)	(revision 1f2bf6d939eb4033dbedb7d7005494cc12fccbc6)
+++ leahi_dialin/td/modules/buttons.py	(.../buttons.py)	(revision 8ad61b1fa2e79b11b1c3db53a3242662e8eb9adf)
@@ -17,6 +17,7 @@
 # Module imports
 from logging import Logger
 import struct
+import time
 
 # Project imports
 from leahi_dialin.common.constants import NO_RESET
@@ -51,6 +52,7 @@
 
         self.td_power_off_timestamp = 0.0                       #: The timestamp of the last message
         self.poweroff_timeout_expired = False                   #: The Power Off timeout value
+        self.handler_execution_times = []
 
 
     def reset_poweroff_timeout_expired(self):
@@ -70,6 +72,7 @@
         @param message: The poweroff timeout occurred message string
         @return: None
         """
+        start = time.perf_counter()
         if len(message["message"]) < 16:
             self.logger.debug("Poweroff message id detected, but was the wrong length.")
             return
@@ -80,6 +83,7 @@
         if len(mode) > 0:
             self.poweroff_timeout_expired = bool(mode[0])
         self.td_power_off_timestamp = timestamp
+        self.handler_execution_times.append(time.perf_counter() - start)
 
 
     def cmd_off_button_override(self, state: int, reset: int = NO_RESET) -> int: