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#1 2005-09-09 14:36:14

mmccaskill
Member
From: NC
Registered: 2005-02-21
Posts: 163

ck kernel config question

I understand that the ck patches are aimed at decreasing latency without preempting the kernel. My question is: Should the "Preempt the Big Kernel Lock" be enabled with ck patches?

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#2 2005-09-09 15:26:51

dtw
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From: London, UK
Registered: 2004-08-03
Posts: 4,428
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Re: ck kernel config question

Accrding to Con Kolivas no they should not - see this ML thread for more info:

http://www.archlinux.org/pipermail/arch … 05846.html

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#3 2005-09-09 18:10:07

mmccaskill
Member
From: NC
Registered: 2005-02-21
Posts: 163

Re: ck kernel config question

So one should use the "No Forced Preemption" Preemption model then too?

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#4 2005-09-15 13:17:40

mmccaskill
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From: NC
Registered: 2005-02-21
Posts: 163

Re: ck kernel config question

bump

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#5 2005-09-15 14:25:42

dtw
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From: London, UK
Registered: 2004-08-03
Posts: 4,428
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Re: ck kernel config question

iphitus wrote:

I asked Con Kolivas about which pre-emption to enable, and he
firmly said none

I guess that is a yes...

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#6 2005-09-17 19:36:01

jondkent
Member
From: London
Registered: 2005-09-13
Posts: 123

Re: ck kernel config question

Hi,

As mentioned you do not need the pre-empt set.  Additionally, it is worth reading up on the additional patches applied to the CK kernel.  I've run the CK kernel for quite a while and have found it extremely performant for a desktop system.  However, you should not use it for a server, that is not what it is designed for

Jon

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#7 2005-09-17 21:17:56

dtw
Forum Fellow
From: London, UK
Registered: 2004-08-03
Posts: 4,428
Website

Re: ck kernel config question

So, no prempt in the kernel options at all?  Not even the desktop one or the big kernel lock?

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