From: ebiederm@xmission.com (Eric W. Biederman)
To: Matt Ayres <matta@tektonic.net>
Cc: devel@openvz.org, Nick Piggin <nickpiggin@yahoo.com.au>,
akpm@osdl.org, linux-kernel@vger.kernel.org,
herbert@13thfloor.at, sam@vilain.net,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
serue@us.ibm.com,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [Devel] Re: [RFC] Virtualization steps
Date: Tue, 28 Mar 2006 09:42:41 -0700 [thread overview]
Message-ID: <m1r74mbjwe.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <44295AE8.7010200@tektonic.net> (Matt Ayres's message of "Tue, 28 Mar 2006 10:48:56 -0500")
Matt Ayres <matta@tektonic.net> writes:
> I think the Xen guys would disagree with you on this. Xen claims <3% overhead
> on the XenSource site.
>
> Where did you get these figures from? What Xen version did you test? What was
> your configuration? Did you have kernel debugging enabled? You can't just post
> numbers without the data to back it up, especially when it conflicts greatly
> with the Xen developers statements. AFAIK Xen is well on it's way to inclusion
> into the mainstream kernel.
It doesn't matter. The proof that Xen has more overhead is trivial
Xen does more, and Xen clients don't share resources well.
Nor is this about Xen vs what we are doing. These are different
non conflicting approaches that operating in completely different
ways and solve a different set of problems.
Xen is about multiple kernels.
The alternative is a supped of chroot.
Eric
next prev parent reply other threads:[~2006-03-28 16:44 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-24 17:19 Kirill Korotaev
2006-03-24 17:33 ` Nick Piggin
2006-03-24 19:25 ` Dave Hansen
2006-03-24 19:53 ` Eric W. Biederman
2006-03-28 4:28 ` Bill Davidsen
2006-03-28 5:31 ` Sam Vilain
2006-03-28 6:45 ` [Devel] " Kir Kolyshkin
2006-03-28 21:59 ` Sam Vilain
2006-03-28 22:24 ` Kir Kolyshkin
2006-03-28 23:28 ` Sam Vilain
2006-03-29 9:13 ` Kirill Korotaev
2006-03-29 11:08 ` Sam Vilain
2006-03-29 13:45 ` Herbert Poetzl
2006-03-29 14:47 ` Kirill Korotaev
2006-03-29 17:29 ` Herbert Poetzl
2006-03-29 21:37 ` Sam Vilain
2006-04-12 8:28 ` Kirill Korotaev
2006-04-13 1:05 ` Herbert Poetzl
2006-04-13 6:52 ` Kirill Korotaev
2006-04-13 13:42 ` Herbert Poetzl
2006-04-13 21:33 ` Cedric Le Goater
2006-04-13 22:45 ` Herbert Poetzl
2006-04-14 7:41 ` Kirill Korotaev
2006-04-14 9:56 ` Cedric Le Goater
2006-04-15 19:29 ` Herbert Poetzl
2006-04-13 22:51 ` Kir Kolyshkin
2006-04-14 10:08 ` Cedric Le Goater
2006-04-15 19:31 ` Herbert Poetzl
2006-03-28 8:52 ` Herbert Poetzl
2006-03-28 9:00 ` Nick Piggin
2006-03-28 14:26 ` Herbert Poetzl
2006-03-28 14:44 ` Nick Piggin
2006-03-29 6:05 ` Eric W. Biederman
2006-03-29 6:19 ` Sam Vilain
2006-03-29 18:20 ` Chris Wright
2006-03-29 22:36 ` Sam Vilain
2006-03-29 22:52 ` Chris Wright
2006-03-29 23:01 ` Sam Vilain
2006-03-29 23:13 ` Chris Wright
2006-03-29 23:18 ` Sam Vilain
2006-03-29 23:28 ` Chris Wright
2006-03-30 1:02 ` Eric W. Biederman
2006-03-30 1:36 ` Chris Wright
2006-03-30 1:41 ` David Lang
2006-03-30 2:04 ` Chris Wright
2006-03-30 14:32 ` Serge E. Hallyn
2006-03-30 15:30 ` Herbert Poetzl
2006-03-30 16:43 ` Serge E. Hallyn
2006-03-30 18:00 ` Eric W. Biederman
2006-03-31 13:40 ` Serge E. Hallyn
2006-03-30 16:07 ` Stephen Smalley
2006-03-30 16:15 ` Serge E. Hallyn
2006-03-30 18:55 ` Chris Wright
2006-03-30 18:44 ` Eric W. Biederman
2006-03-30 19:07 ` Chris Wright
2006-03-31 5:36 ` Eric W. Biederman
2006-03-31 5:51 ` Chris Wright
2006-03-31 6:52 ` Eric W. Biederman
2006-03-30 18:53 ` Chris Wright
2006-03-30 2:48 ` Eric W. Biederman
2006-03-30 19:23 ` Chris Wright
2006-03-31 6:00 ` Eric W. Biederman
2006-03-31 14:52 ` Stephen Smalley
2006-03-31 16:39 ` Eric W. Biederman
2006-03-30 13:29 ` Serge E. Hallyn
2006-03-30 13:37 ` Eric W. Biederman
2006-03-30 14:55 ` Serge E. Hallyn
2006-03-30 2:24 ` Sam Vilain
2006-03-30 3:01 ` Eric W. Biederman
2006-03-30 3:26 ` Nick Piggin
2006-03-30 10:30 ` Eric W. Biederman
2006-04-11 10:32 ` Kirill Korotaev
2006-04-11 11:14 ` Nick Piggin
2006-04-11 14:44 ` Kirill Korotaev
2006-03-28 9:00 ` Kirill Korotaev
2006-03-28 14:41 ` Bill Davidsen
2006-03-28 15:03 ` Eric W. Biederman
2006-03-28 17:48 ` Jeff Dike
2006-03-28 23:07 ` Sam Vilain
2006-03-29 20:56 ` Bill Davidsen
2006-03-28 20:29 ` [Devel] " Jun OKAJIMA
2006-03-28 20:50 ` Kir Kolyshkin
2006-03-28 21:38 ` Jun OKAJIMA
2006-03-28 21:51 ` Eric W. Biederman
2006-03-28 23:18 ` Sam Vilain
2006-04-03 16:47 ` Bill Davidsen
2006-04-11 10:38 ` Kirill Korotaev
2006-04-11 16:20 ` Herbert Poetzl
2006-04-11 18:12 ` Kir Kolyshkin
2006-04-12 5:12 ` Andi Kleen
2006-04-12 6:55 ` Kirill Korotaev
2006-04-12 6:53 ` Andi Kleen
2006-04-12 7:51 ` Kirill Korotaev
2006-04-12 17:03 ` Andi Kleen
2006-04-12 17:20 ` Eric W. Biederman
2006-04-13 16:54 ` Alexey Kuznetsov
2006-04-30 13:22 ` Bill Davidsen
2006-04-30 21:34 ` Sam Vilain
2006-05-01 12:27 ` Kirill Korotaev
2006-05-03 20:32 ` Bill Davidsen
2006-03-28 9:02 ` Kirill Korotaev
2006-03-28 9:15 ` Nick Piggin
2006-03-28 15:35 ` Herbert Poetzl
2006-03-28 15:53 ` Nick Piggin
2006-03-28 16:31 ` Eric W. Biederman
2006-03-29 21:37 ` Bill Davidsen
2006-03-28 16:15 ` Eric W. Biederman
2006-03-28 23:04 ` Sam Vilain
2006-03-29 1:39 ` Kirill Korotaev
2006-03-29 13:47 ` Herbert Poetzl
2006-03-28 15:48 ` [Devel] " Matt Ayres
2006-03-28 16:42 ` Eric W. Biederman [this message]
2006-03-28 17:04 ` Matt Ayres
2006-03-29 0:55 ` Kirill Korotaev
2006-03-24 18:36 ` Eric W. Biederman
2006-03-24 21:19 ` Herbert Poetzl
2006-03-27 18:45 ` Eric W. Biederman
2006-03-28 8:51 ` Kirill Korotaev
2006-03-28 12:53 ` Serge E. Hallyn
2006-03-28 22:51 ` Sam Vilain
2006-03-29 20:30 ` Dave Hansen
2006-03-29 20:47 ` Eric W. Biederman
2006-03-29 22:44 ` Sam Vilain
2006-03-30 13:51 ` Kirill Korotaev
2006-03-28 21:58 ` Eric W. Biederman
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