Important Note

This version of Pergraph has been replaced by Perfgraph 2.0. This page remains for archival purposes only.


Main Features

Perfgraph is a CPU/memory utilization monitor for your taskbar. Its main features are:

  • Multi-core display for up to 8 CPUs/cores
  • Physical memory utilization indicator
  • Pagefile activity indicator (pages in/out)
  • Very lightweight: minimal CPU and memory utilization
  • Dual renderers: plain GDI polygon calls for speed or GDI+ calls for a fancier display
Perfgraph will run on both x86 and x64 versions of Windows XP or later.

Perfgraph is an extension to the Taskbar and runs within the explorer.exe process. It will monitor CPU and memory utilization as well as pagefile activity and draw pretty graphs with a user-configurable refresh speed.

It's a great way to constantly keep tabs on what's going on inside your computer. It is also quite pretty:
On the left you can see a screenshot of Perfgraph running in a vertical taskbar.

Note the two-tone CPU utilization chart at the top: it's a dual-core computer and different cores are drawn with a different color.

Memory utilization - which happens to be fairly constant - is displayed in the lower area. The yellow spikes signify memory pages being read in from the harddisk.

Above is Perfgraph running on a dual-core laptop, this time configured to display the CPU cores in separate graphs.

To access the configuration screen, right-click Perfgraph and select "Perfgraph Configuration" from the menu that appears:

The options should be self-explanatory. To minimize resource usage, you will want to lower the refresh rate and keep the Perfgraph toolbar as small as possible. Resource utilization should be quite negligible - but to be perfectly honest, the quad-core QX6850 that reports 0.002% CPU utilization by Perfgraph in the above screenshot spent most of its time displaying a screensaver, which means that the drawing code did not get much of a chance to run. The screenshot should illustrate however that the data collection code itself (which runs even if Perfgraph is covered by another application) takes up very, very little CPU time. Also note that keeping the Configuration dialog open requires Perfgraph to render itself three times instead of just once (once in the taskbar and twice on the config dialog) so to gauge actual CPU utilization toggle the GDI+ switch twice to reset the counters then close the dialog for a few minutes then open it again.


LEGAL NOTICE: You're granted the license to freely use Perfgraph. You may not redistribute, sell or re-sell it. Anything else you do with it is at your sole responsibility. The creator or publisher cannot be held liable for any damages, direct or indirect, that result from the use of this software. By running the software you agree to be bound by these terms.

Download for x86 operating systems: - 157K
Download for x64 operating systems: - 166K


Run the setup file contained within the zip archive. After installation right-click your taskbar and select "Perfgraph" from the "Toolbars" menu.

To uninstall Perfgraph, use the Add/Remove Programs (XP) or Programs and Features (Vista) control panel applet. Don't forget to close the Perfgraph toolbar before you do so.