Audio/Video Problems

[Gene Heskett]

On Thursday 03 January 2013 14:44:13 Mark Greenwood did opine:
Message additions Copyright Thursday 03 January 2013 by Gene Heskett

> On 3 Jan 2013, at 18:20, Gene Heskett wrote:
> > I guess what I wanted to say was that for some uses, the latest and
> > greatest, because its real world performance sucks dead toads thru
> > soda straws, is a disaster.
> 
> Couldn't agree more Gene :) I use Linux for music production
> (occasionally) and need hard real-time performance. Things have been
> getting steadily worse since 10.10 and the latest release is completely
> useless to me. (Audio latency minimum I can get is 200ms, as opposed to
> 5ms with 10.10).
> 
Yee Gods! And keep in mind even the 5ms of 10.10 takes it totally out of 
the running for us. There is no film at 11 for that, not even faked on 
youtube.

> However I don't think (K)Ubuntu are to blame for this, it's entirely in
> the hands of the kernel developers and Linus himself has no interest in
> realtime.

That too, and has been so noted in the discussions I have "copied the mail" 
on.  We have, over the last 6 months as this deadline looms on the horizon, 
investigated the other guys, bsd, qnx et all and found them equally and 
deadly lacking in something so damned simple as a context switch to handle 
an IRQ in at least a repeatable amount of time.  We don't have the 
resources to sit down and write our own kernel, but it has been discussed.

> Mark

Cheers, Gene
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