Performance Monitor User's Guide

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1. Introduction

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Red Flag Linux provides following tools to monitor the usage of system resources:

System performance monitoring is an important maintenance and management task of Red Flag Linux administrators. With the performance data at hand, sysadm can:

System monitor and performance alarm provide detailed data of various system resources, which are presented in a graphical way, when the monitored data is over or lower than the pre-defined threshold, alarm is to be triggered to notify users.

1.1 System Monitor Overview

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System monitor can be used to collect and view the real-time system performance data and system service actitivies. The monitored data can be defined as follows:

1.2 Performance Alarm Overview

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Performance alarm can be used to collect system performance data automatically, and threshold can be set for the monitored counters, so alarm can be triggered if the monitored counter is over or lower than the threshold.

Similar to system monitor, performance alarm supports the object, counter and instance selection, user can also set the monitor rate.

2. System Monitor

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System monitor can be started in 3 ways:
    1. In Control Panel, click "Performance" icon
    2. From start menu, click "Start->Settings->Performance"
    3. In terminal, type "rfmon"

When system monitor is fired up, by default, the data presentation area and toolbar are displayed. The data presentation area is empty. After enter some counters, the data will be presented. You can choose to update automatically or manully.

Some properties of the selected counters are displayed below the data presentation area, which includes:

2.1 Counter

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Counter is the basic monitored object, which includes three elements:

2.2 Add New Counter

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  1. From the "New Counter" dialog, select object to be monitored.
  2. Select one or more counters from the counter list.
  3. Select one or all instances.
  4. Click "Add", a new counter should be added to the active counter list of main window.

2.3 Remove Counter

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From the active counter list, selected the counter to be deleted, right click mouse button, then click "remove" menu item from the popup menu; or just selected menu "Counter->Remove".

2.4 Counter Display Properties

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Each active counter has color and ratio properties, which can be configured in the display properties box at the right side of the active counter list.

2.5 Other Operations

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System monitor privides some other operations:

3 Performance Alarm

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Select "Alarm" from the left-hand tree of the main window, the defined alarms are to be shown on the right-hand panel.

3.1 Add New Alarm

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  1. From the right-hand alarm list panel, right click menu item "Add Alarm", an alarm task dialog will be popped up.
  2. Enter the alarm task name
  3. Enter comments
  4. Select one and only one counter to be monitored.
  5. Select the threshold type (>, <,=,!=,>=,<=)
  6. Enter threshold value, it must be integer larger than 0.
  7. Select reporting type (syslog, email, logfile or command)
  8. Click "OK"

3.2 Delete Alarm Task

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Select an alarm to be deleted, right click menu item "Delete".

3.3 Start Alarm Service

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Any changes of alarm tasks can be reflected only when the alarm service (rfmond) is restarted, to do that, select menu "Action->Restart".



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Copyright © 2002-2003 Red Flag Software Co., Ltd. 
rfmon 1.0