[LAU] ubuntu realtime.

Atte André Jensen atte.jensen at gmail.com
Fri May 29 12:20:44 EDT 2009


Marcel Marti wrote:

> I've reached latencies of 3 ms. with no trace of xrun nor clicks in the 
> audio, while in Ubuntu I just could barely get close to 25 ms which was 
> insane. I cannot recommend anything else. Trust me.

I don't trust you :-) Well I trust you had bad experiences with 8.10 of 
which I also heard bad things (still on 8.04 here).

I used to run debian with openbox, but when my last laptop died I 
decided to try ubuntu 8.04 on the new one. I was very skeptic in the 
beginning, but actually now I can't get the same performance with debian 
(has it installed on a second partition) on the new laptop.

I even run gnome with compiz, and had stable RT performance with 10ms 
latency over firewire. Can run lower, but at high performance the 
clients start to misbehave.

My current feeling is that some of the general recommendations like 
"stay away from gnome" and "ubuntu sucks for realtime audio" apparently 
aren't universally true.

And I must admit the point where hacking around on the box to *perhaps* 
press latency a few ms is over for me. I make music (something I'm very 
fond of), both live and recording/sequencing/softsynthing at home 
without a hickup, and I didn't even compile the kernel myself.

-- 
Atte

http://atte.dk   http://modlys.dk   http://virb.com/atte



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