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Date:      Sat, 10 May 2003 16:25:44 -0500
From:      David Leimbach <leimy2k@mac.com>
To:        Lars Eggert <larse@ISI.EDU>
Cc:        current@freebsd.org
Subject:   Re: Interrupt latency problems
Message-ID:  <F520D3DB-832D-11D7-9B15-0003937E39E0@mac.com>
In-Reply-To: <3EBD1D65.1060104@isi.edu>

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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@isi.edu>           USC Information Sciences 
> Institute
> <smime.p7s>



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