Correct refresh time method

glances/plugins/glances_plugin.py

@@ -587,9 +587,17 @@ class GlancesPlugin(object):
         """Set the limits to input_limits."""
         self._limits = input_limits
 
+    def set_refresh(self, value):
+        """Set the plugin refresh rate"""
+        self.set_limits('refresh', value)
+
+    def get_refresh(self):
+        """Get the plugin refresh rate"""
+        return self.get_limits('refresh')
+
     def set_limits(self, item, value):
         """Return the limits object."""
-        self._limits[item] = value
+        self._limits['{}_{}'.format(self.plugin_name, item)] = value
 
     def get_limits(self, item=None):
         """Return the limits object."""

glances/plugins/glances_system.py

@@ -24,6 +24,7 @@ import platform
 import re
 from io import open
 
+from glances.logger import logger
 from glances.compat import iteritems
 from glances.plugins.glances_plugin import GlancesPlugin
 
@@ -91,8 +92,8 @@ class Plugin(GlancesPlugin):
         self.display_curse = True
 
         # Set default rate to 60 seconds
-        if self.get_limits('refresh') is None:
-            self.set_limits('refresh', 60)
+        if self.get_refresh():
+            self.set_refresh(60)
 
     @GlancesPlugin._check_decorator
     @GlancesPlugin._log_result_decorator