[gentoo-user] realtime-preemption patch

2005-11-01 Thread karlos
hi,

I just wanted to ask whether someone on the List has experiences with the Realtime Preemption patches by Ingo Molnar 

http://people.redhat.com/mingo/realtime-preempt/

applied to the gentoo-kernel. I have just tried it out but a LOT of
files are not where patch thinks they should be, so I did not even
attempt to build it.
It would be cool if someone had an idea, since I am a bit unsatisfied with jack-performance overall.

karsten



Re: [gentoo-user] realtime-preemption patch

2005-11-01 Thread Hans-Werner Hilse
Hi,

On Tue, 1 Nov 2005 12:11:48 +
karlos [EMAIL PROTECTED] wrote:

 I just wanted to ask whether someone on the List has experiences with the
 Realtime Preemption patches by Ingo Molnar
 
 http://people.redhat.com/mingo/realtime-preempt/
 
 applied to the gentoo-kernel. I have just tried it out but a LOT of files
 are not where patch thinks they should be, so I did not even attempt to
 build it.

Files should be there... you're using the correct -p flag for patch? I
guess you'd having problems anyway if you're using the (already heavily
patched) gentoo-kernel. Why not start with a vanilla kernel, patch it
with realtime-preempt and then apply any other patches you might want
from gentoo-sources?

-hwh
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Re: [gentoo-user] realtime-preemption patch

2005-11-01 Thread karlos
could you point me to a list where all the patches are listed, as I
really don't know what patches are applied to gentoo-sources.#?

k


Re: [gentoo-user] realtime-preemption patch

2005-11-01 Thread Max
Hi,

On 11/1/05, karlos [EMAIL PROTECTED] wrote:
 could you point me to a list where all the patches are listed, as I really
 don't know what patches are applied to gentoo-sources.#?

http://dev.gentoo.org/~dsd/genpatches/

  k

Cheers,
Max

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Re: [gentoo-user] realtime-preemption patch

2005-11-01 Thread Hans-Werner Hilse
Hi,

On Tue, 1 Nov 2005 14:01:40 +
karlos [EMAIL PROTECTED] wrote:

 could you point me to a list where all the patches are listed, as I really
 don't know what patches are applied to gentoo-sources.#?

See
http://dev.gentoo.org/~dsd/genpatches

HTH,

-hwh
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Re: [gentoo-user] realtime-preemption patch

2005-11-01 Thread Mark Knecht
On 11/1/05, Hans-Werner Hilse [EMAIL PROTECTED] wrote:
 Hi,

 On Tue, 1 Nov 2005 12:11:48 +
 karlos [EMAIL PROTECTED] wrote:

  I just wanted to ask whether someone on the List has experiences with the
  Realtime Preemption patches by Ingo Molnar
 
  http://people.redhat.com/mingo/realtime-preempt/
 
  applied to the gentoo-kernel. I have just tried it out but a LOT of files
  are not where patch thinks they should be, so I did not even attempt to
  build it.

 Files should be there... you're using the correct -p flag for patch? I
 guess you'd having problems anyway if you're using the (already heavily
 patched) gentoo-kernel. Why not start with a vanilla kernel, patch it
 with realtime-preempt and then apply any other patches you might want
 from gentoo-sources?

 -hwh

Hi Hans,
   I have considerable experience with these patches over the last few
years, first on the PlanetCCRMA/RH/Fedora relases and now on Gentoo.

   On Gentoo I build my own kernels. I dearly wish there was a
realtime kernel project here based on Ingo's work but there isn't. To
make the current 2.6.14-rt1 kernel it's dead simple:

1) Get the current stable kernel from kernel.org - 2.6.14

2) Patch it with Ingo's current patch - 2.6.14-rt1

   If you need any help doing that let me know off line and I'll go
through it with you.

   These kernels get a bit more difficult as release candidate kernels
start coming out. Basically then you take some baseline kernel, which
is not always the newest kernel, add the rc patches, and then add the
rt patches. On the previous round I got as far as 2.6.14-rc5-rt7. Note
that this kernel was built on top of 2.6.13, not 2.6.13.2.

   Anyway, it works, once you get used to the process.

   NOTE: Once you get one of these kernels booted you still have
configuration work to do in terms of setting realtime priorities, etc.
That's where it gets fun!

Cheers,
Mark

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