lkml.org 
[lkml]   [2004]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch] preempt-timing-on-2.6.8-rc2-O2
From
Date
On Sat, 2004-08-07 at 22:39, William Lee Irwin III wrote:
> On Sat, 2004-08-07 at 22:33, William Lee Irwin III wrote:
> >> This seems to be 996us spent in do_IRQ() when it interrupts idle tasks.
>
> On Sat, Aug 07, 2004 at 10:36:55PM -0400, Lee Revell wrote:
> > I am not sure I understand how preemption can be disabled for 996us and
> > not cause an xrun.
>
> You were idling at the time, so the latency affected nothing, except
> perhaps task migration on SMP.
>

Would it be possible to detect this situation and treat it like a
preemptible section, just so the sheer volume of printks does not cause
a problem?

Lee

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:05    [W:0.265 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site