Re: [gentoo-user] Kon Colivas is working again on a new scheduler for Desktop/Multimedia/Gaming PCs

[Alan McKinnon <alan.mckinnon@gmail.com>]

On Saturday 05 September 2009 02:06:05 Volker Armin Hemmann wrote:
> > Fire up Ardour and record 32 channels of audio at the same time set to
> > <5mS latency using Jack and see if whatever version of the mainline
> > kernel you are running doesn't have. I've recorded as many as 48
> > channels @ 48KHz across three hard drives at less than 2mS on my main
> > recording platform, but that requires rt-sources. I doubt I could do
> > better than about 25mS with vanilla-sources.
> > 
> > Just my experience,
> > Mark
> 
> well, and your workload asks for rt. But rt also means overhead, reduction
>  of  performance. So why cater for 1 in a thousand system and punish the
>  other 999?
> 
> if you like the 'bfs' scheduler, that is great. 
> 

I think it's more a case of a whole lot less than 1 in a thousand, and your 
workload intersects with it in no way at all.

There's a huge need for a low latency rt kernel and a massive market for it. 
But it's not mainline and shouldn't even be in there. It should be something 
separate and parallel. If Kon's new patches are good, I hope it gains traction 
- his previous stuff was very good. This is the beauty of open source Linux, 
we can do stuff like this trivially easy. 

Imagine a distro or an ebuild built just for audio and gaming work that's 
easypeasy to install and use. We can do that in about a fortnight.

-- 
alan dot mckinnon at gmail dot com