Interrupt latency problems

[Lars Eggert]

David Leimbach wrote:
> 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.

Yes, but I used that under 4.X also, and didn't see these issues.

> 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 Eggert <larse at isi.edu>           USC Information Sciences Institute
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/x-pkcs7-signature
Size: 3529 bytes
Desc: S/MIME Cryptographic Signature
Url : http://lists.freebsd.org/pipermail/freebsd-current/attachments/20030510/99cd8d51/smime.bin