CPU Performance

This is a rather odd one.

One of my companies PC's was running rather slow. So I
installed some monitoring software.

What this showed, was that although the system was idle
the CPU was sitting at 85% - 100% usage.

The really odd thing was that, if I started to wiggle the
mouse about, the usage dropped right down and when I stop
it goes back up again.

Has anybody seen this before? If so how do I correct it?

"Keith" wrote in news:23bc801c45eb8$a06259d0
:

This is a rather odd one.

One of my companies PC's was running rather slow. So I
installed some monitoring software.

What this showed, was that although the system was idle
the CPU was sitting at 85% - 100% usage.

The really odd thing was that, if I started to wiggle the
mouse about, the usage dropped right down and when I stop
it goes back up again.

Has anybody seen this before? If so how do I correct it?

Many CPU monitoring utilities do not accurately report CPU usage. WinTop is
probably one of the few that does. It can be found he

http://www.microsoft.com/windows95/d...95KernelToy/De
fault.asp

The above is one long link

This is exactly the expected behaviour if you have something running in the
background - it uses the CPU when the machine is idle, and it stops as soon
as it detects that you might be about to do something, such as selecting
something with the mouse.

You need a good process monitoring tool to see what's running and really
using that CPU. See:
http://www.sysinternals.com/ntw2k/fr.../procexp.shtml
--
Jeff Richards
MS MVP (DTS)
"Keith" wrote in message
...
This is a rather odd one.

One of my companies PC's was running rather slow. So I
installed some monitoring software.

What this showed, was that although the system was idle
the CPU was sitting at 85% - 100% usage.

The really odd thing was that, if I started to wiggle the
mouse about, the usage dropped right down and when I stop
it goes back up again.

Has anybody seen this before? If so how do I correct it?