lkml.org 
[lkml]   [2005]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: RT : 2.6.12rc5 + realtime-preempt-2.6.12-rc5-V0.7.47-15

* Serge Noiraud <serge.noiraud@bull.net> wrote:

> Le mar 31/05/2005 à 21:47, Lee Revell a écrit :
> > On Tue, 2005-05-31 at 16:53 +0200, Serge Noiraud wrote:
> > > I have a test program which made a loop in RT to mesure the system
> > > perturbation.
> > > It works finely in a tty environment.
> > > When I run it in an X environment ( xterm ), I get something like if I
> > > click the Enter key in the active window.
> > > If I open a new xterm, this is the new active window which receive these
> > > events.
> > > These events stop when the program stop.
> > >
> > > I tried with X in RT and no RT : I have the problem.
> >
> > Try adding:
> >
> > Option "NoAccel"
> Same problem.

could you enable latency timing and tracing in the .config:

CONFIG_CRITICAL_PREEMPT_TIMING=y
CONFIG_CRITICAL_IRQSOFF_TIMING=y
CONFIG_LATENCY_TIMING=y
CONFIG_LATENCY_TRACE=y

and start a new search for a maximum latency via:

echo 0 > /proc/sys/kernel/preempt_max_latency

and then do the X test - what is the largest latency reported in
'dmesg'? Also, please send me a (bzip2 -9 compressed, if too large)
/proc/latency_trace trace output of the largest incident.

Ingo
-
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: 2005-06-01 11:11    [W:0.059 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site