Call process_iter.clear_cache() (PsUtil 6+) when Glances user force a…

… refresh (F5 or CTRL-R) #2753

glances/outputs/glances_curses.py

@@ -370,7 +370,7 @@ def _handle_quit(self, return_to_browser):
             logger.info(f"Stop Glances (keypressed: {self.pressedkey})")
 
     def _handle_refresh(self):
-        pass
+        glances_processes.reset_internal_cache()
 
     def loop_position(self):
         """Return the current sort in the loop"""

glances/processes.py

@@ -119,6 +119,12 @@ def set_args(self, args):
         """Set args."""
         self.args = args
 
+    def reset_internal_cache(self):
+        """Reset the internal cache."""
+        self.cache_timer = Timer(0)
+        self.processlist_cache = {}
+        psutil.process_iter.cache_clear()
+
     def reset_processcount(self):
         """Reset the global process count"""
         self.processcount = {'total': 0, 'running': 0, 'sleeping': 0, 'thread': 0, 'pid_max': None}