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TkPerfmeter - monitor system load, such as CPU, networks, disks, etc.

This program is tested on redhat Linux 5.2 and 6.1. Because there are no universal way to get these information from the system, this will not work on many of other systems unless it is modified according to the system. To execute this program, BLT library is required in addition to Tcl/Tk core package.

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Facility

• CPU: CPU load, in percentage
• Packet: number of packets transmitted or received (per second)
• Page: frequency of paging (per second)
• Swap: frequency of swapping (per second)
• Interrupt: frequency of interrupts (per second)
• Disk: frequency of reading/writing to disks (per second)
• Context: frequency of context switch (per second)
• Load: load average
• Collision: frequency of collision on networks (per second)
• Error: frequency of errors on networks (per second)

Pressing a mouse button in the window will open a menu, and users can switch display by selecting one of the items in the menu. Display will be switched to the selected item if only single graph is displayed, and on/off of the selected item will be switched if multiple graphs are displayed. To make display multiple graphs when only single graph is displayed, it is necessary to open Property panel and make setting on the panel.

Selecting ``Property...'' from the menu will open Property panel to make settings. On this panel, adding to on/off of display of each items, direction when display multiple graphs, and period of sampling can be set. Clicking ``Save as Default'' after setting is made will make this program to be startup with the settings when it is started next time.

Bugs

• Consumes too many resources
• Display other than bar-graph is not supported
• Load of other hosts can't be displayed
• Can work on very limited platforms
• BLT library is required in addition to Tcl/Tk core package