improve some logs

lisa/executable.py

@@ -446,7 +446,7 @@ class Tools:
         if tool is None:
             # the Tool is not installed on current node, try to install it.
             tool_log = get_logger("tool", tool_key, self._node.log)
-            tool_log.debug(f"initializing {tool_key}")
+            tool_log.debug(f"initializing tool [{tool_key}]")
 
             if isinstance(tool_type, CustomScriptBuilder):
                 tool = tool_type.build(self._node)

lisa/tools/reboot.py

@@ -27,13 +27,14 @@ class Reboot(Tool):
         timer = create_timer()
         last_boot_time = who.last_boot()
         current_boot_time = last_boot_time
-        date = self.node.tools[Date]
 
         # who -b returns time without seconds.
         # so if the node rebooted in one minute, the who -b is not changed.
         # The reboot will wait forever.
         # in this case, verify the time is wait enough to prevent this problem.
+        date = self.node.tools[Date]
         current_delta = date.current() - current_boot_time
+        self._log.debug(f"delta time since last boot: {current_delta}")
         while current_delta < timedelta(minutes=1):
             # wait until one minute
             wait_seconds = 60 - current_delta.seconds + 1