From: Arnd Bergmann <arnd@arndb.de>
To: Avi Kivity <avi@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
Chris Wright <chrisw@sous-sol.org>,
Rusty Russell <rusty@rustcorp.com.au>,
kvm@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: copyless virtio net thoughts?
Date: Sat, 7 Feb 2009 12:56:06 +0100 [thread overview]
Message-ID: <200902071256.07513.arnd@arndb.de> (raw)
In-Reply-To: <498C4F6C.4070402@redhat.com>
On Friday 06 February 2009, Avi Kivity wrote:
> > Well, these guests will suck both on baremetal and in virtualisation,
> > big deal :) Multiqueue at 10GbE speeds and above is simply not an
> > optional feature.
> >
>
> Each guest may only use a part of the 10Gb/s bandwidth, if you have 10
> guests each using 1Gb/s, then we should be able to support this without
> multiqueue in the guests.
I would expect that there are people that even people with 10 simultaneous
guests would like to be able to saturate the link when only one or two of
them are doing much traffic on the interface.
Having the load spread evenly over all guests sounds like a much rarer
use case.
Arnd <><
next prev parent reply other threads:[~2009-02-07 11:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-05 2:07 copyless virtio net thoughts? Chris Wright
2009-02-05 12:37 ` Avi Kivity
2009-02-05 14:25 ` Anthony Liguori
2009-02-06 5:40 ` Herbert Xu
2009-02-06 8:46 ` Avi Kivity
2009-02-06 9:19 ` Herbert Xu
2009-02-06 14:55 ` Avi Kivity
2009-02-07 11:56 ` Arnd Bergmann [this message]
2009-02-08 3:01 ` David Miller
2009-02-18 11:38 ` Rusty Russell
2009-02-18 12:17 ` Herbert Xu
2009-02-18 16:24 ` Arnd Bergmann
2009-02-19 10:56 ` Rusty Russell
2009-02-18 23:31 ` Simon Horman
2009-02-19 1:03 ` Dong, Eddie
2009-02-19 11:36 ` Rusty Russell
2009-02-19 14:51 ` Arnd Bergmann
2009-02-19 23:09 ` Simon Horman
2009-02-19 11:37 ` Chris Wright
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