Updated kernel26ck

broch · 2007-06-10 05:54:28

stability:
http://www.nabble.com/Mainline-plans-t3833285.html

while CFS is also clearly better than current mainline, its
stablity is something yet to be seen.

There was 6 versions of cfs released since beginning of May. It is pretty obvious that cfs requires much of work
excerpt regarding bugs (obvious at this stage of development)
http://groups.google.com/group/linux.ke … f?lnk=raot
http://kerneltrap.org/node/8141

benchmarks ans server application limitations
http://kerneltrap.org/node/8082

there were also benchmarks that nice -19 is not really optimal
read what Linus is saying too.

and
high latency connectivity on servers is opposite to fair scheduling, the higher the scheduling latencies, the more chance of a process running until it blocks for some other reason in one timeslice, thus less CPU time wasted on context switches. For desktops, smoothness is everything, and you'll cope if it means that your computer isn't able to saturate a gigabit ethernet link. For servers, you often prefer saturated network links, but a few more milliseconds latency.

Last edited by broch (2007-06-10 23:08:18)

.:B:. · 2007-06-10 12:35:28

mic64 wrote:

Hi
I have a problem with the ck kernel, but also with the standard one.
I can remember the days with older kernels, where I could do a lot of stuff at the same time.
example: encoding, rar some stuff and still do the normal stuff like surf the web or browse files.
Now it is almost impossible to do this.
As soon I start rar or mencoder the system behaves like crap.
Opening a konqueror takes minutes, watching a clip stutters like hell.
My System C2D E6300 @ 2,8 GhZ
2 Gb RAM
What is this?

The new CK scheduler tends to get laggy under heavy load .

I have it too... Particularly with heavy I/O it grinds your system. Copying a few GB over NFS makes my box respond slow as hell.

On top of that Con will be discontinuing his patchset. I hope other people pick up his work and continue to improve it.

tomk · 2007-06-10 13:16:12

B wrote:

On top of that Con will be discontinuing his patchset.

Have you a reference for that? I seem to have missed it.

pkraw · 2007-06-10 14:42:52

B wrote:

On top of that Con will be discontinuing his patchset.

Oh no, that sounds too horrible to be true!

.:B:. · 2007-06-10 15:24:30

tomk wrote:

B wrote:
On top of that Con will be discontinuing his patchset.
Have you a reference for that? I seem to have missed it.

Unfortunately his homepage says absolutely nothing about it, so I didn't believe it at first either. However, if you join IRC (#ck at irc.oftc.net) the topic clearly says he's discontinuing it (topic was set by himself).

I drop in there once in a while, and I caught someone asking why, and Con was pretty tart...

pkraw wrote:

B wrote:
On top of that Con will be discontinuing his patchset.
Oh no, that sounds too horrible to be true!

Yes, like a bad april's fool. Except it's not . I wonder why this hasn't hit Slashdot or other tech sites, since it seems the news is still not widespread...

Last edited by B (2007-06-10 15:25:40)

skottish · 2007-06-10 21:00:02

From post two here: http://www.nabble.com/Mainline-plans-tf3833285.html

Con Kolivas May 30, 2007:

Ok, since doing mainline development kills me every time, should I always
focus my efforts on -ck only? Most people on the mailing list seem to want me
to do this. However, if I hadn't started pushing SD for mainline, mainline
would not be considering a scheduler upgrade which it so badly needs. So...
urgh.. I have to go through pain so that mainline benefits? Forget it. Once I
can rid myself of the swap prefetch debacle one way or another (go in or be
dropped forever) then I can go back to maintaining -ck as a soft linux fork
and ignore mainline. Sorry, mainline, just the mention of you brings bile to
the back of my throat and you only ever indirectly benefited from me hacking
on you anyway. I will continue to concentrate only on -ck since I have so
many happy and very grateful users.

tomk · 2007-06-10 23:51:41

Yes, that's the relevant post that I remember, and unless Con announces it himself, on his own mailing list, I will not be inclined to believe that -ck is dead.

iphitus · 2007-06-11 00:15:40

tomk wrote:

Yes, that's the relevant post that I remember, and unless Con announces it himself, on his own mailing list, I will not be inclined to believe that -ck is dead.

could always just drop in and ask him on IRC. con@irc.oftc.net #ck

As said above, he's set the topic in there to:

http://ck.wikia.com ; stable: 2.6.21-ck2 ; unstable: 2.6.22-rc4-ck1 ;
SD-1.00 ; swap-prefetch-40 ; add yourself to map!
http://www.frappr.com/ck ; 2.6.22-ck1 will be the last ever -ck.

Given that 2.6.22, and thus 2.6.22-ck1, isnt out yet, he'll probably announce it on the ml when he releases that last version.

James

Last edited by iphitus (2007-06-11 00:17:27)

tomk · 2007-06-11 13:12:21

Yes, of course I could drop in and ask him, but I'm a patient man, so I don't mind waiting.

Thanks for the advice though.

robbel · 2007-06-13 17:51:07

Thanks, swiergot, for keeping the .21 kernel series updated in your repo

.:B:. · 2007-06-14 00:44:30

Well, an update. I talked to Con, and he rectified the situation:

http://members.optusnet.com.au/ckolivas/kernel/

Seems like it's pretty official now...

Someone please slashdot that :P .

Last edited by B (2007-06-14 00:44:55)

Kenetixx · 2007-06-14 09:05:41

SO its all over for the ck kernel.
SO who is going to stepup and make another one just as good or better? I would if i had a clue

somedrew · 2007-06-15 11:09:44

It was fun while it lasted. Thanks for maintaining the ck kernel for arch tomk, and Con for keeping it up for so long!

Kenetixx · 2007-06-15 15:19:57

Sureley there wil be something else?
Maybe one of the Devs could do a patched kernel?

chaosgeisterchen · 2007-06-16 12:16:25

You might start to work on it for yourself?

I have to thank the devs and con as well for their great effort. I enjoyed using the -ck kernel. After beyond and -ck finally died, I will therefore have to migrate back to the standard kernel26. Not too bad, but I'll somehow miss the -ck kernel.

ekerazha · 2007-06-16 15:44:53

Imho Arch should have:

- kernel26 [Vanilla + important patches] ALREADY HERE
- kernel26hardened [Vanilla + important patches + hardening patches] MISSING
- kernel26mm [Vanilla + important patches + mm patches] ALREADY HERE (not very updated...)
- kernel26suspend2 [Vanilla + important patches + suspend2] ALREADY HERE
- kernel26???somehting??? [Vanilla + important patches + goodies... like CFS scheduler etc.] MISSING

remove -beyond (already removed) and -ck

Last edited by ekerazha (2007-06-16 15:46:00)

ekerazha · 2007-06-16 15:48:21

Maybe you could also remove -suspend2 and put it inside "kernel26???somehting???" with the other goodies.

Izuil · 2007-06-16 18:24:57

ekerazha wrote:

Imho Arch should have:
- kernel26???somehting??? [Vanilla + important patches + goodies... like CFS scheduler etc.] MISSING

Maybe that something kernel you're missing is viper?

Check it out: http://aur.archlinux.org/packages.php?d … s=0&SeB=nd

Last edited by Izuil (2007-06-16 18:25:31)

broch · 2007-06-16 18:30:58

and of course:
kernel26-RCU-preempt
kernel26-RCUclassic
kernel26SLAB
kernel26SLUB
kernel26readahead
kernel26SD (complementing kernel26cfs)
......................................

or maybe users can build custom kernels?
Is it downloading vanilla, that difficult?
What patches are important?
what is "hardening":
grsec
pax only
selinux
RSBAC
execscheld only

There is some sane number of combination that can be maintained. I think that Arch has pretty good kernel choice, if you need more then compile your own kernel. Pretty easy and really short procedure.

Kenetixx · 2007-06-16 23:25:32

Compiling Viper kernel now to give it a go.

ekerazha · 2007-06-16 23:51:18

Izuil wrote:

ekerazha wrote:
Imho Arch should have:
- kernel26???somehting??? [Vanilla + important patches + goodies... like CFS scheduler etc.] MISSING
Maybe that something kernel you're missing is viper?
Check it out: http://aur.archlinux.org/packages.php?d … s=0&SeB=nd

Viper? It is nice but.... no

ekerazha · 2007-06-16 23:52:26

broch wrote:

I think that Arch has pretty good kernel choice, if you need more then compile your own kernel. Pretty easy and really short procedure.

Not really... Arch HAD a good kernel choice: no more -beyond and maybe no more -ck. -hardened and -??goodies?? would be nice replacements.

Kenetixx · 2007-06-17 00:23:12

On viper kernel now
seems ok feels about the same speed as ck, everything works so far. Will update if something happens.

ekerazha · 2007-06-17 08:22:42

Kenetixx wrote:

On viper kernel now
seems ok feels about the same speed as ck, everything works so far. Will update if something happens.

If I have to choose between the available patchsets, I'd choose -kamikaze over -viper

Arch Linux

#51 2007-06-10 05:54:28

Re: Updated kernel26ck

#52 2007-06-10 12:35:28

Re: Updated kernel26ck

#53 2007-06-10 13:16:12

Re: Updated kernel26ck

#54 2007-06-10 14:42:52

Re: Updated kernel26ck

#55 2007-06-10 15:24:30

Re: Updated kernel26ck

#56 2007-06-10 21:00:02

Re: Updated kernel26ck

#57 2007-06-10 23:51:41

Re: Updated kernel26ck

#58 2007-06-11 00:15:40

Re: Updated kernel26ck

#59 2007-06-11 13:12:21

Re: Updated kernel26ck

#60 2007-06-13 17:51:07

Re: Updated kernel26ck

#61 2007-06-14 00:44:30

Re: Updated kernel26ck

#62 2007-06-14 09:05:41

Re: Updated kernel26ck

#63 2007-06-15 11:09:44

Re: Updated kernel26ck

#64 2007-06-15 15:19:57

Re: Updated kernel26ck

#65 2007-06-16 12:16:25

Re: Updated kernel26ck

#66 2007-06-16 15:44:53

Re: Updated kernel26ck

#67 2007-06-16 15:48:21

Re: Updated kernel26ck

#68 2007-06-16 18:24:57

Re: Updated kernel26ck

#69 2007-06-16 18:30:58

Re: Updated kernel26ck

#70 2007-06-16 23:25:32

Re: Updated kernel26ck

#71 2007-06-16 23:51:18

Re: Updated kernel26ck

#72 2007-06-16 23:52:26

Re: Updated kernel26ck

#73 2007-06-17 00:23:12

Re: Updated kernel26ck

#74 2007-06-17 08:22:42

Re: Updated kernel26ck

Board footer