Interrupt latency problems

[Lars Eggert]

On 5/10/2003 5:37 AM, Paul Richards wrote:
 >
> I'm having real problems with current with heavy disk activity.
> 
> When working in X and updating ports which causes a lot of disk activity
> I get *very* poor interactive responses. Keypresses can not appear for
> seconds and mouse movement is very jerky and unresponsive.
> 
> I'm wondering if something is holding locks a long time in interrupt
> handlers and causing mouse/keyboard interrupts to be lost?
> 
> Since this is caused by heavy disk activity then my first guess would be
> the ATA driver.
> 
> Is anyone else seeing anything like this?

I do, but with SCSI disks and on an SMP box. So I doubt it's the ATA 
subsystem alone.

Lars
-- 
Lars Eggert <larse at isi.edu>           USC Information Sciences Institute
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