Re: [patch/backport] CFS scheduler, -v24, for v2.6.24-rc3, v2.6.23.8, v2.6.22.13, v2.6.21.7



Hi

On Nov 20, 2007 10:53 PM, Ingo Molnar <mingo@xxxxxxx> wrote:
<snip>

curious: what scheduler/kernel version have you used before?

I was using 2.6.23.1 with ck patches.

are you sure? The last -ck patch i can find is for .22:

http://www.kernel.org/pub/linux/kernel/people/ck/patches/2.6/

or have they been forward ported? (if yes, do you have an URL for that)

(my guess is you used the 2.6.23.1 scheduler (CFS), so the improvement
you felt on the laptop is relative to 2.6.23-vanilla in essence - which
is good news.)

Well, it seems that Matthew has been faster than me :-) Yes, I got -ck
patches from kamikaze sources.


Just a question: does the patch include the fix (divide by
zero....) you just posted in the stable review for 2.6.23.9?

yeah.

OK, thanks. Have you already tried to apply the patch to 2.6.23.9?
Shall we expect some other rejects?

hm:

The latest stable version of the Linux kernel is: 2.6.23.8

so there's no 23.9 yet.

Ingo


I meant the 23.9 patches that Greg KH posted some hours ago for
review. I guess I will find myself in a couple of days.

To answer your latest mail, again I don't have numbers but from my
point ov view:

23.1 < 23.1+ck < 23.8+cfs.24

where 23.1+ck is slightly better than vanilla 23.1 and 23.8+cfs.24 is
much better than 23.1+ck.

My workload is pretty standard, F8+kde+firefox+kmail+amsn, some kernel
compile and so on.

Regards,
Fabio
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