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Re: [patch 2/6] [Network namespace] Network device sharing by view [message #4080 is a reply to message #4068]

Wed, 28 June 2006 10:14

Cedric Le Goater
Messages: 443
Registered: February 2006

Senior Member

Hi !

Eric W. Biederman wrote:

[ ... ]

> So just to sink one additional nail in the coffin of the silly
> guest to guest communication issue. For any two guests where
> fast communication between them is really important I can run
> an additional interface pair that requires no routing or bridging.
> Given that the implementation of the tunnel device is essentially
> the same as the loopback interface and that I make only one
> trip through the network stack there will be no performance overhead.
> Similarly for any critical guest communication to the outside world
> I can give the guest a real network adapter.
>
> That said I don't think those things will be necessary and that if
> they are it is an optimization opportunity to make various bits
> of the network stack faster.

just one comment on the 'guest to guest communication' topic :

guest to guest communication is an important factor in consolidation
scenarios, where containers are packed on one server. This for maintenance
issues or priority issues on a HPC cluster for example. This case of
container migration is problably the most interesting and the performance
should be more than acceptable. May be not a top priority for the moment.

thanks,

C.

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[Message index]

		Re: [patch 2/6] [Network namespace] Network device sharing by view By: dev on Tue, 27 June 2006 09:54
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Tue, 27 June 2006 16:09
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Tue, 27 June 2006 16:29
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Tue, 27 June 2006 23:07
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 04:07
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Sam Vilain on Wed, 28 June 2006 06:30
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Wed, 28 June 2006 14:15
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 15:36
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Wed, 28 June 2006 17:18
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Cedric Le Goater on Wed, 28 June 2006 10:14
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Wed, 28 June 2006 14:11
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 16:10

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