O(1) scheduler for PPC?

O(1) scheduler for PPC?

[Steven Scholz]

Hi there,

is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
tree and is it available for the PPC?

Thanks,

Steven


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Re: O(1) scheduler for PPC?

[Eugene Surovegin]

On Thu, Mar 25, 2004 at 02:16:57PM +0100, Steven Scholz wrote:
> is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
> tree and is it available for the PPC?

O(1) scheduler for 2.4 exists as a patch and it works just fine on PPC.

Eugene.

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RE: O(1) scheduler for PPC?

[Diekema, Jon (AGRE)]

The newest patch that I have found for 2.4.x is
sched-O1-rml-2_4_20-rc3-1_patch.
Do you of know of anything newer?

http://www.kernel.org/pub/linux/kernel/people/rml/sched/ingo-O1/sched-O1-rml
-2.4.20-rc3-1.patch

> -----Original Message-----
> From: Eugene Surovegin
> Sent: Thursday, March 25, 2004 1:01 PM
> Subject: Re: O(1) scheduler for PPC?
>
> On Thu, Mar 25, 2004 at 02:16:57PM +0100, Steven Scholz wrote:
> > is the backport of Ingo Molnar's O(1) scheduler in the official
> > linux-2.4.2x tree and is it available for the PPC?
>
> O(1) scheduler for 2.4 exists as a patch and it works just fine on
> PPC.

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Re: O(1) scheduler for PPC?

[Jaap-Jan Boor]

On Thu, 25 Mar 2004, Steven Scholz wrote:

>
> Hi there,
>
> is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
> tree and is it available for the PPC?

an up-to-date patch together with the preemptible kernel and low-latency
patches for 2.4.25 are available here:

http://www.plumlocosoft.com/kernel

>
> Thanks,
>
> Steven
>
>
>

--
J.G.J. Boor			  Anton Philipsweg 1
Software Engineer		  1223 KZ Hilversum
AimSys bv              		  tel. +31 35 689 1941
Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl


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Re: O(1) scheduler for PPC?

[Jaap-Jan Boor]

On Fri, 26 Mar 2004, Jaap-Jan Boor wrote:

>
> On Thu, 25 Mar 2004, Steven Scholz wrote:
>
> >
> > Hi there,
> >
> > is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
> > tree and is it available for the PPC?
>
> an up-to-date patch together with the preemptible kernel and low-latency
> patches for 2.4.25 are available here:
>
> http://www.plumlocosoft.com/kernel
>

note that, after applying the 'base' patch you need to add the
CONFIG_LOLAT option to arch/ppc/config.in and apply thew following
change in include/asm-ppc/bitopts.h

285c285
< static inline int _sched_find_first_bit(unsigned long *b)
---
> static inline int sched_find_first_bit(unsigned long *b)


Jaap-Jan

> >
> > Thanks,
> >
> > Steven
> >
> >
> >
>
> --
> J.G.J. Boor			  Anton Philipsweg 1
> Software Engineer		  1223 KZ Hilversum
> AimSys bv              		  tel. +31 35 689 1941
> Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl
>
>
>

--
J.G.J. Boor			  Anton Philipsweg 1
Software Engineer		  1223 KZ Hilversum
AimSys bv              		  tel. +31 35 689 1941
Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl


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Re: O(1) scheduler for PPC?

[Steven Scholz]

Jaap-Jan Boor wrote:

> On Thu, 25 Mar 2004, Steven Scholz wrote:
>>
>>is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
>>tree and is it available for the PPC?
>
> an up-to-date patch together with the preemptible kernel and low-latency
> patches for 2.4.25 are available here:
>
> http://www.plumlocosoft.com/kernel

Thanks a lot.

But it looks like the recent "full patch against 2.4.25" found at

http://www.plumlocosoft.com/kernel/patches/2.4/2.4.25/2.4.25-lck1/patch-2.4.25-lck1.bz2

still got the problems mentioned ages ago in

http://lists.linuxppc.org/linuxppc-dev/200212/msg00032.html

Maybe Eric Hustvedt could merge these trivials into his patch set.

Thanks a million,

Steven


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Re: O(1) scheduler for PPC?

[Jaap-Jan Boor]

On Fri, 26 Mar 2004, Steven Scholz wrote:

>
> Jaap-Jan Boor wrote:
>
> > On Thu, 25 Mar 2004, Steven Scholz wrote:
> >>
> >>is the backport of Ingo Molnar's O(1) scheduler in the official linux-2.4.2x
> >>tree and is it available for the PPC?
> >
> > an up-to-date patch together with the preemptible kernel and low-latency
> > patches for 2.4.25 are available here:
> >
> > http://www.plumlocosoft.com/kernel
>
> Thanks a lot.
>
> But it looks like the recent "full patch against 2.4.25" found at
>
> http://www.plumlocosoft.com/kernel/patches/2.4/2.4.25/2.4.25-lck1/patch-2.4.25-lck1.bz2
>
> still got the problems mentioned ages ago in
>
> http://lists.linuxppc.org/linuxppc-dev/200212/msg00032.html
>
> Maybe Eric Hustvedt could merge these trivials into his patch set.
>
> Thanks a million,

Yes, you too, I just (last night) had the build problem with _sched_find_first_bit
and didn't check the changes you mentioned above. I also have not run it yet
on my system.

Jaap-Jan

>
> Steven
>
>
>

--
J.G.J. Boor			  Anton Philipsweg 1
Software Engineer		  1223 KZ Hilversum
AimSys bv              		  tel. +31 35 689 1941
Postbus 2194, 1200 CD Hilversum   mailto:jjboor@aimsys.nl


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