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Re: [RFC] Virtualization steps [message #2206 is a reply to message #2201]

Fri, 24 March 2006 19:25

Dave Hansen
Messages: 240
Registered: October 2005

Senior Member

On Sat, 2006-03-25 at 04:33 +1100, Nick Piggin wrote:
> Oh, after you come to an agreement and start posting patches, can you
> also outline why we want this in the kernel (what it does that low
> level virtualization doesn't, etc, etc)

Can you wait for an OLS paper? ;)

I'll summarize it this way: low-level virtualization uses resource
inefficiently.

With this higher-level stuff, you get to share all of the Linux caching,
and can do things like sharing libraries pretty naturally.

They are also much lighter-weight to create and destroy than full
virtual machines. We were planning on doing some performance
comparisons versus some hypervisors like Xen and the ppc64 one to show
scaling with the number of virtualized instances. Creating 100 of these
Linux containers is as easy as a couple of shell scripts, but we still
can't find anybody crazy enough to go create 100 Xen VMs.

Anyway, those are the things that came to my mind first. I'm sure the
others involved have their own motivations.

-- Dave

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[Message index]

		[RFC] Virtualization steps By: dev on Fri, 24 March 2006 17:19
		Re: [RFC] Virtualization steps By: Nick Piggin on Fri, 24 March 2006 17:33
		Re: [RFC] Virtualization steps By: Dave Hansen on Fri, 24 March 2006 19:25
		Re: [RFC] Virtualization steps By: ebiederm on Fri, 24 March 2006 19:53
		Re: [RFC] Virtualization steps By: Bill Davidsen on Tue, 28 March 2006 04:28
		Re: Re: [RFC] Virtualization steps By: kir on Tue, 28 March 2006 06:45
		Re: Re: [RFC] Virtualization steps By: Sam Vilain on Tue, 28 March 2006 21:59
		Re: Re: [RFC] Virtualization steps By: Kir Kolyshkin on Tue, 28 March 2006 22:24
		Re: Re: [RFC] Virtualization steps By: Sam Vilain on Tue, 28 March 2006 23:28
		Re: Re: [RFC] Virtualization steps By: Kirill Korotaev on Wed, 29 March 2006 09:13
		Re: Re: [RFC] Virtualization steps By: Sam Vilain on Wed, 29 March 2006 11:08
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Wed, 29 March 2006 13:45
		Re: Re: [RFC] Virtualization steps By: dev on Wed, 29 March 2006 14:47
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Wed, 29 March 2006 17:29
		Re: Re: [RFC] Virtualization steps By: Sam Vilain on Wed, 29 March 2006 21:37
		Re: Re: [RFC] Virtualization steps By: dev on Wed, 12 April 2006 08:22
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Thu, 13 April 2006 01:05
		Re: Re: [RFC] Virtualization steps By: Kirill Korotaev on Thu, 13 April 2006 06:45
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Thu, 13 April 2006 13:42
		Re: Re: [RFC] Virtualization steps By: Cedric Le Goater on Thu, 13 April 2006 21:33
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Thu, 13 April 2006 22:45
		Re: Re: [RFC] Virtualization steps By: dev on Fri, 14 April 2006 07:35
		Re: Re: [RFC] Virtualization steps By: Cedric Le Goater on Fri, 14 April 2006 09:56
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Sat, 15 April 2006 19:29
		Re: Re: [RFC] Virtualization steps By: kir on Thu, 13 April 2006 22:51
		Re: Re: [RFC] Virtualization steps By: Cedric Le Goater on Fri, 14 April 2006 10:08
		Re: Re: [RFC] Virtualization steps By: Herbert Poetzl on Sat, 15 April 2006 19:31
		Re: [RFC] Virtualization steps By: dev on Tue, 28 March 2006 09:00
		Re: [RFC] Virtualization steps By: Bill Davidsen on Tue, 28 March 2006 14:38
		Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 15:03
		Re: [RFC] Virtualization steps By: Jeff Dike on Tue, 28 March 2006 17:47
		Re: [RFC] Virtualization steps By: Sam Vilain on Tue, 28 March 2006 23:07
		Re: [RFC] Virtualization steps By: Bill Davidsen on Wed, 29 March 2006 20:56
		Re: Re: [RFC] Virtualization steps By: Jun OKAJIMA on Tue, 28 March 2006 20:26
		Re: Re: [RFC] Virtualization steps By: kir on Tue, 28 March 2006 20:50
		Re: Re: [RFC] Virtualization steps By: Jun OKAJIMA on Tue, 28 March 2006 21:35
		Re: Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 21:51
		Re: Re: [RFC] Virtualization steps By: Sam Vilain on Tue, 28 March 2006 23:17
		Re: [RFC] Virtualization steps By: dev on Tue, 28 March 2006 09:02
		Re: [RFC] Virtualization steps By: Nick Piggin on Tue, 28 March 2006 09:15
		Re: [RFC] Virtualization steps By: Herbert Poetzl on Tue, 28 March 2006 15:35
		Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 16:31
		Re: [RFC] Virtualization steps By: Nick Piggin on Tue, 28 March 2006 15:53
		Re: [RFC] Virtualization steps By: Bill Davidsen on Wed, 29 March 2006 21:37
		Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 16:15
		Re: [RFC] Virtualization steps By: dev on Wed, 29 March 2006 01:39
		Re: [RFC] Virtualization steps By: Herbert Poetzl on Wed, 29 March 2006 13:47
		Re: Re: [RFC] Virtualization steps By: TheWiseOne on Tue, 28 March 2006 15:48
		Re: Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 16:42
		Re: Re: [RFC] Virtualization steps By: TheWiseOne on Tue, 28 March 2006 17:04
		Re: Re: [RFC] Virtualization steps By: Kirill Korotaev on Wed, 29 March 2006 00:55
		Re: [RFC] Virtualization steps By: ebiederm on Fri, 24 March 2006 18:36
		Re: [RFC] Virtualization steps By: Herbert Poetzl on Fri, 24 March 2006 21:19
		Re: [RFC] Virtualization steps By: ebiederm on Mon, 27 March 2006 18:45
		Re: [RFC] Virtualization steps By: dev on Tue, 28 March 2006 08:51
		Re: [RFC] Virtualization steps By: serue on Tue, 28 March 2006 12:53
		Re: [RFC] Virtualization steps By: Sam Vilain on Tue, 28 March 2006 22:50
		Re: [RFC] Virtualization steps By: Dave Hansen on Wed, 29 March 2006 20:30
		Re: [RFC] Virtualization steps By: ebiederm on Wed, 29 March 2006 20:47
		Re: [RFC] Virtualization steps By: Sam Vilain on Wed, 29 March 2006 22:44
		Re: [RFC] Virtualization steps By: dev on Thu, 30 March 2006 13:51
		Re: [RFC] Virtualization steps By: ebiederm on Tue, 28 March 2006 21:58

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