Re: [proaudio] : Compile a 2.6.25.4-rt5 kernel (was : 2.6.24.7-rt7 - Big performance improvement)

[Mysth-R <mysthr21@xxxxxxxxx>]

Ok thank you for the explanation :)
I think this is what the rtirq script does. 

Well it's ok for me now. I compiled, tested, recompiled all the week end, and now, my kernel 2.6.25.4 seems to be very good :)

I can set my latency to 4ms without Xruns. :D
In fact I noticed that my rtirq script was in rc-update default run level but, after booting its status was "stopped". So I put it in default and boot runlevel and, it's ok now. 
And I didn't notice it before but there was some issues due to some privileges access. 

It seems that the 2.6.25.4-rt5 is the best kenerl I ever Tested :)

Thank you all for the help !!
Cheers,

Mysth-R

2008/6/9 Reuben Martin <reuben.m@xxxxxxxxx>:

Back on Friday 06 June 2008, Mysth-R was like:
> Hi,
>

> Well, I don't know how to check the IRQ-Thread...
>
> I just set the rtirq script for my firewire card :

>[...]

>
> Can you tell me more about setting the priority level of IRQ-thread please
> ? Cheers,
>

Hi,

ps -elH

will give a listing of all processes and their priority settings. The chrt
tool will also allow you to change scheduling priority as well as your
scheduling policy.

Find the process ID of the IRQ thread used by your sound card from the
previous command, and try using something like:

chrt -f -p 80 [process ID of the IRQ thread]

(and remember that the number scale listed by the ps command and the chrt
command when referring to priority levels are not the same. You are setting
the priority level of IRQ thread to "80" in chrt, and should show up in ps
as -21)

Another helpful tool you might want to insall is htop.

-Reuben



> Mysth-R

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