90-100% CPU time by Hardware Interrupt - TechRepublic
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February 24, 2007 at 05:33 AM
contact001122

90-100% CPU time by Hardware Interrupt

by contact001122 . Updated 19 years, 2 months ago

Hi…

My HDD is too slow. 2.5 MB/sec
I got Process Explorer anf find that Hardware Interrupt is taking 90-100% CPU time any time there is a HDD activity.

Environment:

Asus A8V-VM mothrboard,
AMD athlon 64 4000
1 GB mem
WD 320 GB hdd

Particion 0: Windows XP – hungarian
Particion 1: Windows XP – english

and for testing:
(Particion 2: Windows XP – Spare)
(Particion 3: Windows XP – Linux SUSE)

Using Roadkil’s Disk Speed for testing the HDD speed.

Story so far:

I had happily my new system with two partition (hungarian and english XP)
Once it crashed while copied a DVD vith NERO 6

Since then the HDD slown down and CPU usage went up.

To find out what happend I made the followings:

– Uninstalled NERO
– Restarted in Safe Mode
– Stopped all stoppable services, programs with Task Manager/Process Explorer
– Disabled the USB in the BIOS
Made no difference.

– Took out the HDD and connected via USB to an other machine: 15 MB/s !!!
– Put back the HDD, innstalled Linux on it : Normal speed !!! (just copiing a 300 MB file, took 5 sec)
– Installing an other XP (Spare) Normal speed 15 MB/sec…

It looks that:

The HDD is OK
The IDE is OK

I guess there is something in the older XP installation create some extreme IRQ requests while access the HDD.

But… What ?

The question is not really just reinstaling XP….
Because it can happening again, so I would like your help to, find the rout of the problem.

Thank you in advance !!!

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