On Fri, 07 Dec 2007 09:56:31 -0800 Bill Campbell centos@celestial.com wrote:
an idle machine with nothing but a ``screen saver'' running seemed to have about 30% CPU utilization which dropped near zero as soon as some activity shut the screen saver down.
Some screensavers on Linux do the same thing. However, it's my understanding that they run at a low priority so if some other job needs the CPU for something it just backs off and allows the other jobs to run.