Re: [LAU] difference between realtime-kernel and low-latency-kernel?

Okay, thanks for explaining the difference :-) ! Ill stick with the
vanilla-kernel then.

Matthias

On Wednesday 03 October 2007 18:39:53 Frank Barknecht wrote:
> Hallo,
>
> Matthias Schönborn hat gesagt: // Matthias Schönborn wrote:
> > I've just read that there's a difference between a realtime-kernel and
> > the low-latency-kernel provided by ubuntustudio. The text in the german
> > wiki on ubuntuusers.de said, that a realtime-kernel is slightly better
> > than the lowlatencykernel (http://wiki.ubuntuusers.de/Echtzeitkernel) -
> > then why isn't it used in ubuntustudio? Or do I just mix something up?
>
> I think, this wiki and maybe Ubuntustudio as well are using a very
> confusing terminology.
>
> Generally we have two kinds of kernels: The "vanilla" kernel as
> downloadable on kernel.org and the same kernel, but patched with Ingo
> Molnars RT-patches. The vanilla kernel, if configured properly with
> CONFIG_PREEMPT etc., already gives very good performance in the low
> latency department, enough for many users, even audio users. I run one
> of these.
>
> If you want more, then you can install a RT-patched kernel, as is
> provided in the linux-rt or linux-realtime packages. I would call the
> Ingo-Molnar-patched kernels Realtime-Kernels or Low-Latency-Kernels.
>
> I would not call the vanilla kernel a "low latency" kernel. It's just
> a vanilla kernel configured with CONFIG_PREEMPT, which happens to have
> good low latency performance as well. But that alone shouldn't be
> taken to give it a different name. It has good network performance,
> too, but I still wouldn't call it a "network kernel" and it supports
> USB keyboards, but still it's not a "USB keyboard kernel". That's a
> bit silly. ;)
>
> Ciao

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
Received on Wed Oct 3 20:15:02 2007