Package Details: linux-ck 4.11.7-1

Git Clone URL: (read-only)
Package Base: linux-ck
Description: The Linux-ck kernel and modules with the ck2 patchset featuring MuQSS CPU scheduler v0.156
Upstream URL:
Licenses: GPL2
Provides: linux-ck=4.11.7
Submitter: graysky
Maintainer: graysky
Last Packager: graysky
Votes: 362
Popularity: 2.289840
First Submitted: 2011-07-22 14:51
Last Updated: 2017-06-24 10:01

Latest Comments

sir_lucjan commented on 2017-06-27 10:14


1. gpg --receive-keys 79BE3E4300411886 38DBBDC86092693E

2., not

zhenyu commented on 2017-06-27 03:30

two errors:
first,two unknown keys 79BE3E4300411886 38DBBDC86092693E,fix it plz.
second,the can not update,exec 'pacman -Syy' return me 'can not find ck-repo.db'.
plz tell me how to fix it.thx!

graysky commented on 2017-06-23 21:30 wrote:
"Please do not leave a comment containing the version number every time you update the package. This keeps the comment section usable for valuable content mentioned above."

I will therefore stop commenting as I have :)

francoism90 commented on 2017-06-16 17:23

@graysky: sorry for delay, output of Kaby Lake system:
$ gcc -c -Q -march=native --help=target | grep 'march\|mtune'
-march= broadwell
-mtune= generic

$ cat /proc/cpuinfo | grep 'model name' | uniq
model name : Intel(R) Core(TM) i3-7100 CPU @ 3.90GHz

@graysky @vp1981: weird it shows broadwell :S

vp1981 commented on 2017-06-12 11:26

I have host with

$ cat /proc/cpuinfo | grep 'model name' | uniq
model name : Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz


$ gcc -c -Q -march=native --help=target | grep 'march\|mtune'

gives me

-march= broadwell
-mtune= generic

While on host with

$ cat /proc/cpuinfo | grep 'model name' | uniq
model name : Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz

the same 'gcc...' gives me

-march= skylake
-mtune= skylake

I faced with this mismatch for Kaby Lake when was installing Archlinux on that new host. After some investigation I decided that -march|-mtune=skylake is appropriate for Kaby Lake processor.

P.S. It is curious enough that both processor on Intel site are categorized as 'Products formely...', not sure what that mean. See and

graysky commented on 2017-06-11 19:30

Are you sure? On your kaby lake what is the output of:

gcc -c -Q -march=native --help=target | grep 'march\|mtune'

francoism90 commented on 2017-06-11 18:53

@SuperIce97: Ah thanks, I'll give it a try. :)

SuperIce97 commented on 2017-06-11 18:38

@francoism90: Kaby Lake has an identical architecture to Skylake (they just improved the manufacturing process which simply allows for higher clock speeds), so you could just use use the Skylake optimized version. You could compile it with native optimizations.

francoism90 commented on 2017-06-11 16:27

@graysky: thanks, will install generic instead. :)

graysky commented on 2017-06-11 16:25

There is no KL support in gcc v7.1.1.

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