[linux-audio-user] Realtime on 2.6.12 again

[Christoph Eckert]

Hi,


recently I managed to get a latency of about 16msecs on my USB 
device thanks to helpful people on this list (you know who 
you are ;-). Thihs is much better than the 48msecs I got 
before.

I still wonder and am trying to get even less latency without 
xruns.

Before, I used a vanilla 2.6.10 with the RT-LSM-patch applied.

Meanwhile I installed a 2.6.12 with the preempt patch of INgo 
Molnar. Unfortunately, it didn't get better results 
concerning latency on my usb audio device.

So I'd like to know some things:

* Does a 2.6.12 with Ingo's patch require further system setup 
to get lower latencies, or

* Should I apply futher patches and if which ones (RT-LSM has 
been dropped)?

* What system tweaking is needed to get less latencies?


Any wee small hint is much appreciated.


Thanks & best regards


    ce