From: Rick Jones <rick.jones2@hp.com>
To: James Morris <jmorris@namei.org>
Cc: dlezcano@fr.ibm.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, serue@us.ibm.com, haveblue@us.ibm.com,
clg@fr.ibm.com
Subject: Re: [RFC] [patch 5/6] [Network namespace] ipv4 isolation
Date: Fri, 09 Jun 2006 17:27:52 -0700 [thread overview]
Message-ID: <448A1208.3060602@hp.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0606092022320.17380@d.namei>
James Morris wrote:
> On Fri, 9 Jun 2006, dlezcano@fr.ibm.com wrote:
>
>
>>When an outgoing packet has the loopback destination addres, the
>>skbuff is filled with the network namespace. So the loopback packets
>>never go outside the namespace. This approach facilitate the migration
>>of loopback because identification is done by network namespace and
>>not by address. The loopback has been benchmarked by tbench and the
>>overhead is roughly 1.5 %
>
>
> I think you'll need to make it so this code has zero impact when not
> configured.
Indeed, and over stuff other than loopback too. I'll not so humbly
suggest :) netperf TCP_STREAM and TCP_RR figures _with_ CPU
utilization/service demand measures.
rick jones
next prev parent reply other threads:[~2006-06-10 0:27 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-09 21:02 [RFC] [patch 0/6] [Network namespace] introduction dlezcano
2006-06-09 21:02 ` [RFC] [patch 1/6] [Network namespace] Network namespace structure dlezcano
2006-06-09 21:02 ` [RFC] [patch 2/6] [Network namespace] Network device sharing by view dlezcano
2006-06-11 10:18 ` Andrew Morton
2006-06-18 18:53 ` Al Viro
2006-06-26 9:47 ` Andrey Savochkin
2006-06-26 13:02 ` Herbert Poetzl
2006-06-26 14:05 ` Eric W. Biederman
2006-06-26 14:08 ` Andrey Savochkin
2006-06-26 18:28 ` Herbert Poetzl
2006-06-26 18:59 ` Eric W. Biederman
2006-06-26 14:56 ` Daniel Lezcano
2006-06-26 15:21 ` Eric W. Biederman
2006-06-26 15:27 ` Andrey Savochkin
2006-06-26 15:49 ` Daniel Lezcano
2006-06-26 16:40 ` Eric W. Biederman
2006-06-26 18:36 ` Herbert Poetzl
2006-06-26 19:35 ` Eric W. Biederman
2006-06-26 20:02 ` Herbert Poetzl
2006-06-26 20:37 ` Eric W. Biederman
2006-06-26 21:26 ` Herbert Poetzl
2006-06-26 21:59 ` Ben Greear
2006-06-26 22:11 ` Eric W. Biederman
2006-06-27 9:09 ` Andrey Savochkin
2006-06-27 15:48 ` Herbert Poetzl
2006-06-27 16:19 ` Andrey Savochkin
2006-06-27 16:40 ` Eric W. Biederman
2006-06-26 22:13 ` Ben Greear
2006-06-26 22:54 ` Herbert Poetzl
2006-06-26 23:08 ` Ben Greear
2006-06-27 16:07 ` Ben Greear
2006-06-27 22:48 ` Herbert Poetzl
2006-06-27 9:11 ` Andrey Savochkin
2006-06-27 9:34 ` Daniel Lezcano
2006-06-27 9:38 ` Andrey Savochkin
2006-06-27 11:21 ` Daniel Lezcano
2006-06-27 11:52 ` Eric W. Biederman
2006-06-27 16:02 ` Herbert Poetzl
2006-06-27 16:47 ` Eric W. Biederman
2006-06-27 17:19 ` Ben Greear
2006-06-27 22:52 ` Herbert Poetzl
2006-06-27 23:12 ` Dave Hansen
2006-06-27 23:42 ` Alexey Kuznetsov
2006-06-28 3:38 ` Eric W. Biederman
2006-06-28 13:36 ` Herbert Poetzl
2006-06-28 13:53 ` jamal
2006-06-28 14:19 ` Andrey Savochkin
2006-06-28 16:17 ` jamal
2006-06-28 16:58 ` Andrey Savochkin
2006-06-28 17:17 ` Eric W. Biederman
2006-06-28 17:04 ` Herbert Poetzl
2006-06-28 14:39 ` Eric W. Biederman
2006-06-30 1:41 ` Sam Vilain
2006-06-29 21:07 ` Sam Vilain
2006-06-29 22:14 ` strict isolation of net interfaces Cedric Le Goater
2006-06-30 2:39 ` Serge E. Hallyn
2006-06-30 2:49 ` Sam Vilain
2006-07-03 14:53 ` Andrey Savochkin
2006-07-04 3:00 ` Sam Vilain
2006-07-04 12:29 ` Daniel Lezcano
2006-07-04 13:13 ` Sam Vilain
2006-07-04 13:19 ` Daniel Lezcano
2006-06-30 8:56 ` Cedric Le Goater
2006-07-03 13:36 ` Herbert Poetzl
2006-06-30 12:23 ` Daniel Lezcano
2006-06-30 14:20 ` Eric W. Biederman
2006-06-30 15:22 ` Daniel Lezcano
2006-06-30 17:58 ` Eric W. Biederman
2006-06-30 16:14 ` Serge E. Hallyn
2006-06-30 17:41 ` Eric W. Biederman
2006-06-30 18:09 ` Eric W. Biederman
2006-06-30 0:15 ` [patch 2/6] [Network namespace] Network device sharing by view jamal
2006-06-30 3:35 ` Herbert Poetzl
2006-06-30 7:45 ` Andrey Savochkin
2006-06-30 13:50 ` jamal
2006-06-30 15:01 ` Andrey Savochkin
2006-06-30 18:22 ` Eric W. Biederman
2006-06-30 21:51 ` jamal
2006-07-01 0:50 ` Eric W. Biederman
2006-06-28 14:21 ` Eric W. Biederman
2006-06-28 14:51 ` Eric W. Biederman
2006-06-27 16:49 ` Alexey Kuznetsov
2006-06-27 11:55 ` Andrey Savochkin
2006-06-27 9:54 ` Kirill Korotaev
2006-06-27 16:09 ` Herbert Poetzl
2006-06-27 16:29 ` Eric W. Biederman
2006-06-27 23:07 ` Herbert Poetzl
2006-06-28 4:07 ` Eric W. Biederman
2006-06-28 6:31 ` Sam Vilain
2006-06-28 14:15 ` Herbert Poetzl
2006-06-28 15:36 ` Eric W. Biederman
2006-06-28 17:18 ` Herbert Poetzl
2006-06-28 10:14 ` Cedric Le Goater
2006-06-28 14:11 ` Herbert Poetzl
2006-06-28 16:10 ` Eric W. Biederman
2006-07-06 9:45 ` Routing tables (Re: [patch 2/6] [Network namespace] Network device sharing by view) Kari Hurtta
2006-06-09 21:02 ` [RFC] [patch 3/6] [Network namespace] Network devices isolation dlezcano
2006-06-18 18:57 ` Al Viro
2006-06-09 21:02 ` [RFC] [patch 4/6] [Network namespace] Network inet " dlezcano
2006-06-09 21:02 ` [RFC] [patch 5/6] [Network namespace] ipv4 isolation dlezcano
2006-06-10 0:23 ` James Morris
2006-06-10 0:27 ` Rick Jones [this message]
2006-06-10 0:47 ` James Morris
2006-06-09 21:02 ` [RFC] [patch 6/6] [Network namespace] Network namespace debugfs dlezcano
2006-06-10 7:16 ` [RFC] [patch 0/6] [Network namespace] introduction Kari Hurtta
2006-06-16 4:23 ` Eric W. Biederman
2006-06-16 9:06 ` Daniel Lezcano
2006-06-16 9:22 ` Eric W. Biederman
2006-06-18 18:47 ` Al Viro
2006-06-20 21:21 ` Daniel Lezcano
2006-06-20 21:25 ` Al Viro
2006-06-20 22:45 ` Daniel Lezcano
2006-06-26 23:38 ` Patrick McHardy
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