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Re: [PATCH 1/4] Virtualization/containers: introduction [message #1432 is a reply to message #1425]

Wed, 08 February 2006 15:42

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

> My point was to mainly identify the performance culprits and provide
> an direct access to those "namespaces" for performance reasons.
> So we all agreed on that we need to do that..
After having looked at Eric's patch, I can tell that he does all these
dereferences in quite the same amount.

For example, lot's of skb->sk->host->...
while in OpenVZ it would be econtainer()->... which is essentially
current->container->...

So until someone did measurements it looks doubtfull that one solution
is better than the another.

> Question now (see other's note as well), should we provide
> a pointer to each and every namespace in struct task.
> Seem rather wasteful to me as certain path/namespaces are not
> exercise heavily.

> Having one object "struct container" that still embodies all
> namespace still seems a reasonable idea.
> Otherwise identifying the respective namespace of subsystems will
> have to go through container->init->subsys_namespace or similar.
> Not necessarily bad either..

why not simply container->subsys_namespace?

Kirill

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[Message index]

		[PATCH 1/4] Virtualization/containers: introduction By: Kirill Korotaev on Mon, 06 February 2006 21:55
		[PATCH 2/4] Virtualization/containers: CONFIG_CONTAINER By: Kirill Korotaev on Mon, 06 February 2006 22:10
		[PATCH 3/4] Virtualization/containers: UID hash By: Kirill Korotaev on Mon, 06 February 2006 22:15
		[PATCH 4/4] Virtualization/containers: uts name By: Kirill Korotaev on Mon, 06 February 2006 22:20
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Dave Hansen on Mon, 06 February 2006 23:00
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Tue, 07 February 2006 12:22
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 03:34
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Rik van Riel on Tue, 07 February 2006 03:40
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Sam Vilain on Tue, 07 February 2006 06:30
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Tue, 07 February 2006 11:49
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 14:31
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 15:42
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Tue, 07 February 2006 16:16
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 17:20
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Sam Vilain on Tue, 07 February 2006 22:43
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Tue, 07 February 2006 16:57
		Re: [PATCH 1/4] Virtualization/containers: introduction By: serue on Tue, 07 February 2006 20:19
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Tue, 07 February 2006 20:46
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 22:00
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Tue, 07 February 2006 22:19
		The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Tue, 07 February 2006 22:06
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Hubertus Franke on Tue, 07 February 2006 23:35
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Alexey Kuznetsov on Wed, 08 February 2006 00:43
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 02:49
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: serue on Wed, 08 February 2006 03:36
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 05:23
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Hubertus Franke on Wed, 08 February 2006 14:40
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 17:46
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 22:28
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: serue on Wed, 08 February 2006 15:17
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: serue on Wed, 08 February 2006 18:03
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: dev on Mon, 20 February 2006 12:08
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Herbert Poetzl on Mon, 20 February 2006 12:40
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: dev on Mon, 20 February 2006 14:25
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Herbert Poetzl on Mon, 20 February 2006 15:16
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Andi Kleen on Mon, 20 February 2006 15:17
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 03:52
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Herbert Poetzl on Wed, 08 February 2006 04:37
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 04:46
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Herbert Poetzl on Wed, 08 February 2006 04:56
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: serue on Wed, 08 February 2006 14:38
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Hubertus Franke on Wed, 08 February 2006 14:51
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: dev on Wed, 08 February 2006 15:34
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Hubertus Franke on Wed, 08 February 2006 15:57
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Herbert Poetzl on Wed, 08 February 2006 19:02
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Wed, 08 February 2006 16:48
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Hubertus Franke on Wed, 08 February 2006 18:31
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Dave Hansen on Wed, 08 February 2006 20:21
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: serue on Wed, 08 February 2006 21:22
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Thu, 09 February 2006 05:41
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: Kyle Moffett on Thu, 09 February 2006 04:45
		Re: The issues for agreeing on a virtualization/namespaces implementation. By: ebiederm on Thu, 09 February 2006 22:25
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Sam Vilain on Tue, 07 February 2006 22:58
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Tue, 07 February 2006 23:18
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Wed, 08 February 2006 05:03
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Wed, 08 February 2006 14:13
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Wed, 08 February 2006 15:42
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Wed, 08 February 2006 16:39
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Kevin Fox on Wed, 08 February 2006 02:08
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Wed, 08 February 2006 15:35
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Wed, 08 February 2006 17:16
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Dave Hansen on Wed, 08 February 2006 20:43
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Wed, 08 February 2006 21:04
		Re: [PATCH 1/4] Virtualization/containers: introduction By: dev on Tue, 07 February 2006 12:12
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 14:06
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Rik van Riel on Tue, 07 February 2006 14:52
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Tue, 07 February 2006 15:13
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Sam Vilain on Wed, 08 February 2006 01:16
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Paul Jackson on Wed, 08 February 2006 04:21
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Thu, 09 February 2006 00:24
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Jeff Dike on Thu, 09 February 2006 02:18
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Thu, 09 February 2006 03:16
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Hubertus Franke on Thu, 09 February 2006 16:38
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Jeff Dike on Thu, 09 February 2006 17:47
		Re: [PATCH 1/4] Virtualization/containers: introduction By: Sam Vilain on Thu, 09 February 2006 22:09
		Re: [PATCH 1/4] Virtualization/containers: introduction By: ebiederm on Thu, 09 February 2006 21:56

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