Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4]

K.R. Foley
2004-10-31T22:12:21Z

Ingo Molnar wrote:
> * Florian Schmidt <mista.tapas@gmx.net> wrote:
>
>
>>On Sat, 30 Oct 2004 17:26:06 -0400
>>Lee Revell <rlrevell@joe-job.com> wrote:
>>
>>
>>>OK this is pretty sweet. With T3 the jitter never exceeds 7% on an idle
>>>system. As soon as I start moving the mouse this goes to 7 or 8%. I
>>>cannot get it to go higher than 10%. Moving windows around has no
>>>effect, the highest jitter happens when I type or move the mouse really
>>>fast IOW it corresponds to the interrupt rate.
>>>
>>>This is a pretty good baseline for what an xrun-free system would look
>>>like. Now to test the latest version...
>>
>>Well,
>>
>>on V0.5.16 i see something like the below output (which is much worse). It
>>seems that missed irq's with rtc show up at the same time as the xruns in
>>jackd do [i ran both jackd and wakeup in parallel].
>
>
> ok, could you try the -RT-V0.6.0 patch i've just uploaded? It could i
> believe improve these latencies.
>
> Ingo
> -

I am not able to get V0.6.2 to boot on my SMP system here. There is no
indication as to why. It just locks. I don't see anything in the log
that gives an indication as to why so I am only attaching the end of the
log. If you would like all of it, just let me know. I am going to try
building it for my SMP system now.

kr

Oct 31 09:28:05 porky vsftpd: vsftpd vsftpd succeeded
Oct 31 09:28:06 porky xinetd[2824]: xinetd Version 2.3.13 started with
libwrap loadavg options compiled in.
Oct 31 09:28:06 porky xinetd[2824]: Started working: 2 available services
Oct 31 09:28:06 porky sendmail: sendmail startup succeeded
Oct 31 09:28:06 porky sendmail: sm-client startup succeeded
Oct 31 09:28:07 porky gpm[2897]: *** info [startup.c(95)]:
Oct 31 09:28:07 porky gpm[2897]: Started gpm successfully. Entered
daemon mode.
Oct 31 09:28:07 porky gpm[2897]: *** info [mice.c(1766)]:
Oct 31 09:28:07 porky gpm[2897]: imps2: Auto-detected intellimouse PS/2
Oct 31 09:28:07 porky gpm: gpm startup succeeded
Oct 31 09:28:07 porky crond: crond startup succeeded
Oct 31 09:28:08 porky xfs: xfs startup succeeded
Oct 31 09:28:08 porky anacron: anacron startup succeeded
Oct 31 09:28:09 porky atd: atd startup succeeded
Oct 31 09:28:09 porky readahead: Starting background readahead:
Oct 31 09:28:09 porky rc: Starting readahead: succeeded
Oct 31 09:28:10 porky messagebus: messagebus startup succeeded