Re: [Fwd: Re: realtime kernel for Debian]
Hi, Sorry, but I've to call again... The developers seems very willing to include a realtime kernel there repo. They need some people who wants to build and maintain it. This is really a chance for linux audio, especially on Debian. *This is the moment!* So please consider to offer your help in building, maintaining and/or testing! Thanks in advance, \r Grammostola Rosea wrote: > Grammostola Rosea wrote: >> Hi, >> >> There is an promising discussion on the debian-dev mailinglist. Maybe >> some people who knows more about realtime kernels could join. Also >> users who might want to have an realtime kernel in Debian and/or want >> help testing could join the discussion. I think it would be nice if >> there is also an realtime kernel in Debian or that the default kernel >> would be improved for realtime (audio) usage. >> >> >> http://www.debian.org/MailingLists/subscribe > Here is the thread about a realtime kernel in Debian: > > > http://www.linux-archive.org/debian-development/268999-realtime-kernel-debian.html > > > > > Kind regards, > > \r > > > > >> >> \r >> >> >> >> Subject: >> Re: realtime kernel for Debian >> From: >> "Giacomo A. Catenazzi" >> Date: >> Tue, 24 Mar 2009 13:26:35 +0100 >> To: >> debian-de...@lists.debian.org >> >> To: >> debian-de...@lists.debian.org >> >> >> Raphael Hertzog wrote: >>> On Tue, 24 Mar 2009, Giacomo A. Catenazzi wrote: Do you really need real time kernel? Debian is a technical driven project, but reading the previous two quotes, "real time" is used as marketing thing. >>> >>> It's good to question the use of any feature, but a real-time kernel is >>> certainly very useful in many industrial applications and Debian is >>> popular in that field. (Don't put a marketing label on anything where >>> you are not yourself sure of your expertise.) >> >> Yes, I didn't write very well my sentence: the previous quotes was more >> about "there exist rt kernels", "ubuntu has a rt kernel", but not solid >> requirements. I had to write some "seems", and I'm sorry for the two >> quoted people if it seems an attack. >> Anyway, later in the mail, I asked for precise needs, so we could see >> better what we should improve. >> >> IMHO most users want a low latency kernel, but not a slower kernel, so >> a CONFIG_HZ_1000 would be nice. But the original post was about >> multimedia production (and not reproduction), so the needs are probably >> other. >> >> My point was more: >> - Debian has not rt kernel. Why? Non DD interested or/and low demand? >> This is an important point. We must not produce a rt-kernel if >> we cannot provide testers and developers (in unstable). >> - kernel management is a weak point in distribution: no good method >> for kernel dependencies, using full capabilities, ... >> >> so IMHO we should try harder with the normal kernel, so that we >> can use the same infrastructure and testers. If we fail and we >> are able to support rt kernels, IMO it is good to provide it in Debian. >> >> The original mail was about "multimedia production" and few year ago >> kernel >> developers had a lot of interaction with music industries. >> I'm not an expert in the field, but how far are we in their need with >> standard kernels?) >> >> >>> I do use a real-time kernel on a Debian based system for one of my >>> customers (but I have to recompile the kernel anyway because I do other >>> customizations) and I have good reasons to do so because I can't suffer >>> serial overrun and I must ensure that the serial interrupt handler >>> is run in the required time and that no other (kernel) task has higher >>> priority. >> >> These *other customizations* are important to rt-kernel. So we need >> a person (or more) that know the needs and could support us. >> "realtime" alone is only a label ;-) >> >> ciao >> cate >> >> > > -- Ubuntu-Studio-devel mailing list Ubuntu-Studio-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
Re: [64studio-devel] [Fwd: Re: realtime kernel for Debian]
Hi Simon, > Why would anyone > consider developing an rt kernel for the out of date debian linux? Debian stable may be older in terms of package versions than other distros, but still a lot of bleeding-edge development happens in Debian 'sid' which trickles down to all the derivative distros, including Ubuntu and 64 Studio. All we do at 64 Studio is tweak packages to give users a better out-of-the-box experience for creating multimedia. Most of the credit for creating a stable, quality distro should go to the Debian project. Cheers! Daniel -- Ubuntu-Studio-devel mailing list Ubuntu-Studio-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
Re: [Fwd: Re: realtime kernel for Debian]
On Wed, Mar 25, 2009 at 09:37:54PM EST, Grammostola Rosea wrote: > Grammostola Rosea wrote: > > Hi, > > > > There is an promising discussion on the debian-dev mailinglist. Maybe > > some people who knows more about realtime kernels could join. Also > > users who might want to have an realtime kernel in Debian and/or want > > help testing could join the discussion. I think it would be nice if > > there is also an realtime kernel in Debian or that the default kernel > > would be improved for realtime (audio) usage. > > > > > > http://www.debian.org/MailingLists/subscribe > Here is the thread about a realtime kernel in Debian: > > > http://www.linux-archive.org/debian-development/268999-realtime-kernel-debian.html This is good news. However Ubuntu doesn't use Debian's kernels,we build our own, since we tend to include other bits and pieces, and maintain them in git, however its good to know that this is being considered. Luke -- Ubuntu-Studio-devel mailing list Ubuntu-Studio-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
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Re: [Fwd: Re: realtime kernel for Debian]
Grammostola Rosea wrote: > Hi, > > There is an promising discussion on the debian-dev mailinglist. Maybe > some people who knows more about realtime kernels could join. Also > users who might want to have an realtime kernel in Debian and/or want > help testing could join the discussion. I think it would be nice if > there is also an realtime kernel in Debian or that the default kernel > would be improved for realtime (audio) usage. > > > http://www.debian.org/MailingLists/subscribe Here is the thread about a realtime kernel in Debian: http://www.linux-archive.org/debian-development/268999-realtime-kernel-debian.html Kind regards, \r > > \r > > > > Subject: > Re: realtime kernel for Debian > From: > "Giacomo A. Catenazzi" > Date: > Tue, 24 Mar 2009 13:26:35 +0100 > To: > debian-de...@lists.debian.org > > To: > debian-de...@lists.debian.org > > > Raphael Hertzog wrote: >> On Tue, 24 Mar 2009, Giacomo A. Catenazzi wrote: >>> Do you really need real time kernel? >>> Debian is a technical driven project, but reading the previous two >>> quotes, >>> "real time" is used as marketing thing. >> >> It's good to question the use of any feature, but a real-time kernel is >> certainly very useful in many industrial applications and Debian is >> popular in that field. (Don't put a marketing label on anything where >> you are not yourself sure of your expertise.) > > Yes, I didn't write very well my sentence: the previous quotes was more > about "there exist rt kernels", "ubuntu has a rt kernel", but not solid > requirements. I had to write some "seems", and I'm sorry for the two > quoted people if it seems an attack. > Anyway, later in the mail, I asked for precise needs, so we could see > better what we should improve. > > IMHO most users want a low latency kernel, but not a slower kernel, so > a CONFIG_HZ_1000 would be nice. But the original post was about > multimedia production (and not reproduction), so the needs are probably > other. > > My point was more: > - Debian has not rt kernel. Why? Non DD interested or/and low demand? > This is an important point. We must not produce a rt-kernel if > we cannot provide testers and developers (in unstable). > - kernel management is a weak point in distribution: no good method > for kernel dependencies, using full capabilities, ... > > so IMHO we should try harder with the normal kernel, so that we > can use the same infrastructure and testers. If we fail and we > are able to support rt kernels, IMO it is good to provide it in Debian. > > The original mail was about "multimedia production" and few year ago > kernel > developers had a lot of interaction with music industries. > I'm not an expert in the field, but how far are we in their need with > standard kernels?) > > >> I do use a real-time kernel on a Debian based system for one of my >> customers (but I have to recompile the kernel anyway because I do other >> customizations) and I have good reasons to do so because I can't suffer >> serial overrun and I must ensure that the serial interrupt handler >> is run in the required time and that no other (kernel) task has higher >> priority. > > These *other customizations* are important to rt-kernel. So we need > a person (or more) that know the needs and could support us. > "realtime" alone is only a label ;-) > > ciao > cate > > -- Ubuntu-Studio-devel mailing list Ubuntu-Studio-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
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