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Kernel config for 2.6.18 [message #8011]

Fri, 03 November 2006 09:34

disaster
Messages: 158
Registered: February 2006

Senior Member

Hi!

At the momentan i want to try to switch from 2.6.16 to 2.6.18.

So i analyized your kernel config examples for 2.6.18.

I know that the kernel team has changed the default scheduler to CFQ - but why it is also set in openvz? Antipacity should be better for servers, shouldn't it?

Stefan

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Re: Kernel config for 2.6.18 [message #8019 is a reply to message #8011]

Fri, 03 November 2006 13:24

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

AS has problems, for example:
http://bugzilla.kernel.org/show_bug.cgi?id=5900
AFAIK, Redhat Entreprise Linux uses CFQ as default,
and SLES also. So why OpenVZ shouldn't use common choice? Smile

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Re: Kernel config for 2.6.18 [message #8023 is a reply to message #8011]

Fri, 03 November 2006 13:47

disaster
Messages: 158
Registered: February 2006

Senior Member

Oh OK - i didn't know that. I've only read on many postings => Newsgroups etc. - that AS is better than CFQ for servers and CFQ is better for desktop systems...

I thought that this is still correct.

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Re: Kernel config for 2.6.18 [message #8046 is a reply to message #8023]

Fri, 03 November 2006 16:51

aistis
Messages: 77
Registered: September 2005
Location: Kaunas, Lithuania

Member

if you feel that some scheduler better suits your needs - use it by adding the boot kernel option "elevator=" with one of those: as, noop, deadline or cfq

Aistis Zenkevicius

http://static.openvz.org/userbars/openvz-user.png

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Re: Kernel config for 2.6.18 [message #8059 is a reply to message #8011]

Sun, 05 November 2006 12:16

disaster
Messages: 158
Registered: February 2006

Senior Member

No i don't feel Smile

I've only read some postings about schedulers - but it could be, that they're very old - i don't remember.. I should flash my brain - and store CFQ too for a good scheduler Smile

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