Re: [LAU] another linux audio bashing thread on slashdot

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To: Gene Heskett <gheskett@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Monday, October 28, 2013 - 3:13 pm

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On Mon, Oct 28, 2013 at 11:05 AM, Gene Heskett wrote:

> I have not yet looked at SteamOS, but you are claiming realtime for it.

There is no comparing even the RT kernel with RTAI. They are totally
different conceptions. RTAI is basically a microkernel that runs a normal
kernel as a client. It requires drivers for every device that is included
in "realtime land" (i.e. for audio, you cannot use ALSA, you would need new
drivers that run in the RT executive.

SteamOS *might* use the RT kernel, but I'd be incredibly surprised if they
even considered RTAI.

--p

(disclaimer: i haven't looked at RTAI for quite a long time, things might
have changed)

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On Mon, Oct 28, 2013 at 11:05 AM, Gene Heskett &l=
t;gheskett@wdtv.com<=
/a>> wrote:
I have not yet looked at SteamOS, but you ar=
e claiming realtime for it.
That =A0pulls my curiosity trigger because one of my hobbies is CNC
machinery, and its realtime demands are far more stringent than some .1
millisecond accurate audio delivery. =A0Currently we are running linuxcnc o=
n
2.6.32-122-RTAI, but that RTAI patch is invasive as hell, [ ... ]

If SteamOS is claiming real time, just how "realtime" is it? =
There is no comparing=A0 even the RT kerne=
l with RTAI. They are totally different conceptions. RTAI is basically a mi=
crokernel that runs a normal kernel as a client. It requires drivers for ev=
ery device that is included in "realtime land" (i.e. for audio, y=
ou cannot use ALSA, you would need new drivers that run in the RT executive=
.
SteamOS *might* use the RT kernel, but I'd be incredibly surprised =
if they even considered RTAI.--p(disc=
laimer: i haven't looked at RTAI for quite a long time, things might ha=
ve changed)

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Messages in current thread:
[LAU] another linux audio bashing thread on slashdot, michael noble, (Mon Oct 28, 9:49 am)
Re: [LAU] another linux audio bashing thread on slashdot, Barney Holmes, (Mon Oct 28, 12:24 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Barney Holmes, (Tue Oct 29, 2:37 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Set Hallstrom, (Mon Oct 28, 3:50 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Paul Davis, (Mon Oct 28, 3:13 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Louigi Verona, (Mon Oct 28, 5:06 pm)
Re: [LAU] another linux audio bashing thread on slashdot, rosea.grammostola, (Mon Oct 28, 7:28 pm)
Re: [LAU] another linux audio bashing thread on slashdot, rosea.grammostola, (Mon Oct 28, 7:48 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Alexandre Prokoudine, (Mon Oct 28, 10:02 am)
Re: [LAU] another linux audio bashing thread on slashdot, michael noble, (Mon Oct 28, 10:11 am)
Re: [LAU] another linux audio bashing thread on slashdot, Set Hallstrom, (Mon Oct 28, 7:37 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Chris Bannister, (Sat Nov 9, 9:17 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Set Hallstrom, (Mon Oct 28, 7:53 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Ralf Mardorf, (Mon Oct 28, 10:04 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Ralf Mardorf, (Mon Oct 28, 10:19 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Leonardo Palomares, (Mon Oct 28, 9:36 pm)
Re: [LAU] another linux audio bashing thread on slashdot, drew Roberts, (Tue Oct 29, 11:39 am)
Re: [LAU] another linux audio bashing thread on slashdot, Dave Phillips, (Tue Oct 29, 12:20 pm)
Re: [LAU] another linux audio bashing thread on slashdot, drew Roberts, (Tue Oct 29, 12:32 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Ralf Mardorf, (Mon Oct 28, 10:10 pm)
Re: [LAU] OT: another linux audio bashing thread on slashdot, Set Hallström, (Tue Oct 29, 8:47 pm)
Re: [LAU] OT: another linux audio bashing thread on slashdot, Fons Adriaensen, (Tue Oct 29, 8:54 pm)
Re: [LAU] OT: another linux audio bashing thread on slashdot, Fons Adriaensen, (Tue Oct 29, 9:13 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Louigi Verona, (Mon Oct 28, 8:47 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Barney Holmes, (Tue Oct 29, 6:18 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Louigi Verona, (Wed Oct 30, 8:07 pm)
Re: [LAU] another linux audio bashing thread on slashdot, Set Hallstrom, (Mon Oct 28, 7:41 pm)
Re: [LAU] another linux audio bashing thread on slashdot, drew Roberts, (Tue Oct 29, 10:58 am)
Re: [LAU] another linux audio bashing thread on slashdot, Set Hallstrom, (Mon Oct 28, 7:47 pm)
Re: [LAU] another linux audio bashing thread on slashdot, michael noble, (Mon Oct 28, 9:56 am)