4 Oct
2005
4 Oct
'05
6:29 a.m.
Hi to the list,
now that I've a stable setup with the vanilla 2.6.13.2 kernel I want to
try to patch it for low-latency.
I'm a bit confused on which patch to apply. I think I have to apply
this:
realtime-preempt-2.6.13-rc6-RT-V0.7.53-11
and maybe this:
patch-2.6.13-rt14
but I'm not sure. I'm taking the patches from:
http://people.redhat.com/mingo/realtime-preempt/older/
Sorry for the banal question.
Best Regards,
~ Antonio
4 Oct
4 Oct
7:40 a.m.
now that I've a stable setup with the vanilla
2.6.13.2 kernel I want to
try to patch it for low-latency.
I'm a bit confused on which patch to apply. I think I have to apply
this:
realtime-preempt-2.6.13-rc6-RT-V0.7.53-11
and maybe this:
patch-2.6.13-rt14
Ingo seems to have abandoned the realtime-preempt-2.6.x-y-RT-Vz
nomenclature and changed it to patch-2.6.x-rty
I think you have to follow the kernel versions pretty accurately
when using Ingos' patches. You'd better get the 2.6.14-rc3 kernel from
ftp://ftp.it.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.14-rc3.tar.…
(or revert the .2 version and get the 2.6.14-rc3 patch)
and get patch-2.6.14-rc3-rt2 from his site.
It might work to patch 2.6.13.2 with say patch-2.6.13-rt14, but then
again it might not.
- Peder
7:59 a.m.
On 10/4/05, Peder Hedlund <peder(a)musikhuset.org> wrote:
Hi,
I am running 2.6.14-rc3-rt1 on my AMD4. Itis working *pretty* well
although I am having a few concerns. About twice a day I get a little
rash of xruns and sometimes the machine gets hung at power down
removing Alsa. None the less it's the only thing that works even this
well with my AMD64 SATA stuff so I'm happy.
Ingo just released rt2. Here's paths to the stuff you need to build it:
http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.13.tar.bz2
http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.14-rc3.bz2
http://redhat.com/~mingo/realtime-preempt/patch-2.6.14-rc3-rt2
Note that you patch 2.6.13, not 2.6.13.2 to get here.
Note also that this is NOT a stable kernel. There may be issues.
People mention LOTS of weird little issues on the kernel mailing list.
HTH,
Mark
now that
I've a stable setup with the vanilla 2.6.13.2 kernel I want to
try to patch it for low-latency.
I'm a bit confused on which patch to apply. I think I have to apply
this:
realtime-preempt-2.6.13-rc6-RT-V0.7.53-11
and maybe this:
patch-2.6.13-rt14
Ingo seems to have abandoned the realtime-preempt-2.6.x-y-RT-Vz
nomenclature and changed it to patch-2.6.x-rty
I think you have to follow the kernel versions pretty accurately
when using Ingos' patches. You'd better get the 2.6.14-rc3 kernel from
ftp://ftp.it.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.14-rc3.tar.…
(or revert the .2 version and get the 2.6.14-rc3 patch)
and get patch-2.6.14-rc3-rt2 from his site.
It might work to patch 2.6.13.2 with say patch-2.6.13-rt14, but then
again it might not.
- Peder
11:29 a.m.
Hi to all,
Thanks for the answers ;-).
I've installed the 2.6.14-rc4 kernel with the latest Ingo Molnar's patch
(patch-2-6.14-rc3-rt2)... no, one moment. I've just checked and just
today Ingo Molnar has release lots of updates reaching 2-6.14-rc3-rt6.
By now I'm still running the rt2 patch and I find it very good. I can
start jackd at 32x2 @ 48000 in playback mode with my audigy 1. I get
some xruns, but none only playing a session with ardour. I use 128x2 in
full duplex for more robust performances.
I've not stress tested the kernel so far, but it seems very good.
I think I'll try the new patch soon.
Best Regards,
~ Antonio
1:20 p.m.
On 10/4/05, Antonio <debian(a)fastwebnet.it> wrote:
Hi to all,
Thanks for the answers ;-).
I've installed the 2.6.14-rc4 kernel with the latest Ingo Molnar's patch
(patch-2-6.14-rc3-rt2)... no, one moment. I've just checked and just
today Ingo Molnar has release lots of updates reaching 2-6.14-rc3-rt6.
By now I'm still running the rt2 patch and I find it very good. I can
start jackd at 32x2 @ 48000 in playback mode with my audigy 1. I get
some xruns, but none only playing a session with ardour. I use 128x2 in
full duplex for more robust performances.
I've not stress tested the kernel so far, but it seems very good.
I think I'll try the new patch soon.
Do not try anything newer than rt2 for a few days. Stick with what you
just built.
- Mark
8:06 a.m.
Hi Peder,
On Tue, 2005-10-04 at 11:40 +0200, Peder Hedlund wrote:
[cut]
Ingo seems to have abandoned the
realtime-preempt-2.6.x-y-RT-Vz
nomenclature and changed it to patch-2.6.x-rty
I think you have to follow the kernel versions pretty accurately
when using Ingos' patches. You'd better get the 2.6.14-rc3 kernel from
ftp://ftp.it.kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.14-rc3.tar.…
(or revert the .2 version and get the 2.6.14-rc3 patch)
and get patch-2.6.14-rc3-rt2 from his site.
It might work to patch 2.6.13.2 with say patch-2.6.13-rt14, but then
again it might not.
Thanks, now I've understanded. I'll try the 2.6.14-rc4, it should be
quite stable by now.
Best Regards,
~ Antonio
7:55 a.m.
Hi!
Alle 10:29, martedì 4 ottobre 2005, Antonio ha scritto:
Hi to the list,
now that I've a stable setup with the vanilla 2.6.13.2 kernel I want to
try to patch it for low-latency.
I'm a bit confused on which patch to apply. I think I have to apply
this:
realtime-preempt-2.6.13-rc6-RT-V0.7.53-11
and maybe this:
patch-2.6.13-rt14
but I'm not sure. I'm taking the patches from:
http://people.redhat.com/mingo/realtime-preempt/older/
Sorry for the banal question.
I followed the instructions at this page:
http://www.jacklab.net/index.php?option=com_content&task=blogcategory&a…
The realtime-lsm module is very easy to build, while I'm not sure about the
usefulness of realtime preemption.
The other way to obtain realtime is to use PAM etc. but it's more difficult
than following this way.
Byez!
Carotinho
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8:19 a.m.
On Tue, 04 Oct 2005 10:29:53 +0200
Antonio <debian(a)fastwebnet.it> wrote:
Hi to the list,
now that I've a stable setup with the vanilla 2.6.13.2 kernel I want to
try to patch it for low-latency.
I'm a bit confused on which patch to apply. I think I have to apply
this:
realtime-preempt-2.6.13-rc6-RT-V0.7.53-11
and maybe this:
patch-2.6.13-rt14
but I'm not sure. I'm taking the patches from:
http://people.redhat.com/mingo/realtime-preempt/older/
Hi,
the answer to your question is neither, as rt patches usually get
applied to either stable releases without minor minor (?) number or
release candidates (in earlier days they were sometimes based on mm
kernels, too).
Example:
the current version of the RP patches is this:
http://people.redhat.com/mingo/realtime-preempt/patch-2.6.14-rc3-rt2
For this kernel you need to apply 2.6.13-rc3 to 2.6.13 (not 2.6.13.2 or
something), and then 2.6.14-rc3-rt2.
2.6.13-rt14 would get applied directly to 2.6.13.
Have fun,
Flo
--
Palimm Palimm!
http://tapas.affenbande.org
10:28 a.m.
Florian Schmidt <mista.tapas(a)gmx.net> writes:
you need to apply 2.6.13-rc3 to 2.6.13
2.6.14-rc3 rather;)
--
Esben Stien is b0ef@e s a
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irc://irc. b - i . e/%23contact
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8 comments
6 participants
participants (6)
-
Antonio -
Carotinho -
Esben Stien -
Florian Schmidt -
Mark Knecht -
Peder Hedlund