Real-time kernel? (was: The audio group)

[Scott Lavender]

On Mon, Sep 13, 2010 at 7:24 PM, Chris Jones <chrisjones at comcen.com.au>wrote:

> On Tue, 2010-09-07 at 06:52 -0500, Scott Lavender wrote:
> > On Tue, Sep 7, 2010 at 2:55 AM, David Henningsson
> > <david.henningsson at canonical.com> wrote:
> >         2010-09-07 02:17, Chris Jones skrev:
> >         > I know I've raised the question before regarding the
> >         inclusion of the
> >         > real-time kernel in Ubuntu Studio, but why exactly is it
> >         necessary?
> >
> >         That's a good question. Abogani has written a small overview
> >         of his take
> >         on it here:
> >
> https://lists.ubuntu.com/archives/kernel-team/2010-March/009323.html
> >
> >         --
> >         David Henningsson, Canonical Ltd.
> >         http://launchpad.net/~diwic <http://launchpad.net/%7Ediwic>
> >
> >
> > And to answer Chris's question very succinctly; better performance.
> >
> > The -rt kernel can help lower latency and minimize the number of xruns
> > so that your recording doesn't drop anything or create artifacts such
> > as popping.
> >
> > From my understanding this also includes allowing firewire audio
> > interface users to be able to adjust the interrupt priority to a more
> > desirable setting allowing the firewire device to experience better
> > perform from fewer interrupts.  I believe I understand the basic
> > principle of this but perhaps someone with broader experience can
> > explain it better.
> >
> > Regards,
> > ScottL
>
> So it seems to me that all examples and explanations given for the
> inclusion of the real-time kernel by default are to cater for the
> audiophiles using Ubuntu Studio as their platform.
>
> Forgive me if I'm mistaken, but isn't Ubuntu Studio focused toward 3
> groups of multimedia professionals-- Audio, Video and Graphic?
>
>
> I don't know the technicalities or possibilities to include a kernel
> option upon installation, but we need to somehow give the user a choice
> of which kernel to use for Ubuntu Studio.
> I know that either can be installed/removed via Synaptic, but not
> everyone feels comfortable doing it via this method.
>
>
> My point; there really is no reason for a real-time kernel when one uses
> Ubuntu Studio for Video and Graphic work.
> So with its default inclusion, it's simply catering for 1/3 of the
> intended audience/users.
>
> Just my 2 cents.
>
> Regards
>
>
> --
> Chris Jones <chrisjones at comcen.com.au>
>  <https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel>
>

Chris,

You seem quite upset by this or am I misinterpreting your email?

The -rt kernel is not included by default.  The -rt kernel package isn't
even in the archives anymore.

Some would also disagree with your about an -rt kernel for video or graphic
work.  It has been suggested that the -rt kernel give better responsiveness
when working with tablets although I am unaware it this has actually been
tested.

Regards,
ScottL
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://lists.ubuntu.com/archives/ubuntu-studio-devel/attachments/20100913/494d622f/attachment.htm