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Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes [message #6662 is a reply to message #6657]

Thu, 21 September 2006 00:53

Rohit Seth
Messages: 101
Registered: August 2006

Senior Member

On Wed, 2006-09-20 at 17:41 -0700, Christoph Lameter wrote:
> On Wed, 20 Sep 2006, Rohit Seth wrote:
>
> > ...my preference is to leave it in page struct...that has non-zero cost.
>
> Oh. Making struct page bigger than a cacheline or not fitting exactly in a
> cacheline has some costs.
>

Isn't most of the architectures not defining WANT_PAGE_VIRTUAL and thus
the page structure on these is not fitting cache line well. In most of
these cases the additional pointer will actually make the structure 64
bytes on 64-bit machines.

-rohit

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[Message index]

		[patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Wed, 20 September 2006 02:18
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Andi Kleen on Wed, 20 September 2006 11:27
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Wed, 20 September 2006 16:44
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Andi Kleen on Wed, 20 September 2006 18:14
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Wed, 20 September 2006 18:19
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Andi Kleen on Wed, 20 September 2006 18:32
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Christoph Lameter on Thu, 21 September 2006 00:23
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Thu, 21 September 2006 00:37
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Christoph Lameter on Thu, 21 September 2006 00:41
		Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Thu, 21 September 2006 00:53
		Re: [ckrm-tech] [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Chandra Seetharaman on Thu, 21 September 2006 01:33
		Re: [ckrm-tech] [patch02/05]: Containers(V2)- Generic Linux kernel changes By: Rohit Seth on Thu, 21 September 2006 22:29

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