Interrupt latency problems

[David Leimbach]

Are you using sysmouse for your mouse protocol for X?  This used to 
happen to me
all the time in FBSD 4.x before I changed to sysmouse.

Dave
On Saturday, May 10, 2003, at 10:40 AM, Lars Eggert wrote:

> 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
> <smime.p7s>