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From: Thomas Graf <tgraf@suug.ch>
To: jamal <hadi@cyberus.ca>
Cc: Andi Kleen <ak@muc.de>,
	Leonid Grossman <leonid.grossman@neterion.com>,
	"'rick jones'" <rick.jones2@hp.com>,
	netdev@oss.sgi.com, "'Alex Aizman'" <alex@neterion.com>
Subject: Re: Intel and TOE in the news
Date: Mon, 21 Feb 2005 15:17:14 +0100	[thread overview]
Message-ID: <20050221141714.GV31837@postel.suug.ch> (raw)
In-Reply-To: <1108994621.1089.158.camel@jzny.localdomain>

* jamal <1108994621.1089.158.camel@jzny.localdomain> 2005-02-21 09:03
> 
> Everything in the stack would have to be re-written not just that one
> piece. 
> The question is: Is it worth it? My experimentation shows, only in a few
> speacilized cases.

Assuming we can deliver a chain of skbs to enqueue (session based or not),
the locking times should decrease. I'm not sure whether it's worth to
rewrite the whole stack (I wouldn't have any use for it) or just establish
a fast path. We could for example allow the ingress qdisc to redirect
packets directly to a egress qdisc and have "dynamic" fast forwarding.
We can add an action looking up the route and rewriting the packet as
needed and enqueue it to the right qdisc immediately. The redirect action
is already on that way, now if we can reduce the locking overhead a bit
more the fast forwarding routing t-put should increase.

  reply	other threads:[~2005-02-21 14:17 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-19  3:44 Intel and TOE in the news Jeff Garzik
2005-02-19  4:10 ` Lennert Buytenhek
2005-02-19 19:46   ` David S. Miller
2005-02-19 20:27     ` Andi Kleen
2005-02-19 20:32       ` Lennert Buytenhek
2005-02-20 16:46       ` Eugene Surovegin
2005-02-21 14:01         ` jamal
2005-02-20 19:45       ` rick jones
2005-02-20 21:20         ` Michael Richardson
2005-02-20 21:29         ` Andi Kleen
2005-02-20 22:43           ` Leonid Grossman
2005-02-20 23:07             ` Andi Kleen
2005-02-21  1:57               ` Alex Aizman
2005-02-21  2:37                 ` Jeff Garzik
2005-02-21 19:34                   ` Alex Aizman
2005-02-21 20:34                     ` Jeff Garzik
2005-02-22  0:50                       ` Alex Aizman
2005-02-21 11:37                 ` Andi Kleen
2005-02-21  3:31               ` Leonid Grossman
2005-02-21 11:50                 ` Andi Kleen
2005-02-21 13:28                   ` Thomas Graf
2005-02-21 14:03                     ` jamal
2005-02-21 14:17                       ` Thomas Graf [this message]
2005-02-21 14:31                         ` jamal
2005-02-21 15:34                           ` Thomas Graf
2005-02-21 15:48                             ` jamal
2005-02-21 16:40                               ` Thomas Graf
2005-02-21 17:03                                 ` jamal
2005-02-21 20:12                                   ` patrick mcmanus
2005-02-21 21:12                                     ` jamal
2005-03-06 11:21                                       ` Harald Welte
2005-02-21 21:41                                   ` Thomas Graf
2005-02-21 15:38                           ` Robert Olsson
2005-02-21 15:50                             ` jamal
2005-02-21 13:44             ` jamal
2005-02-21 16:52               ` Leonid Grossman
2005-02-21 17:11                 ` jamal
2005-02-21 18:02                   ` Leonid Grossman
2005-02-22 18:02                     ` Stephen Hemminger
2005-02-22 18:07                       ` Andi Kleen
2005-02-22 20:51                         ` Leonid Grossman
2005-02-22 21:20                           ` Rick Jones
2005-02-22 21:30                             ` Leonid Grossman
2005-02-22 21:42                               ` Rick Jones
2005-02-22 22:10                                 ` Leonid Grossman
2005-02-22 21:43                           ` Andi Kleen
2005-02-22 22:17                             ` Leonid Grossman
2005-02-22 22:42                               ` Andi Kleen
2005-02-22 22:51                                 ` Leonid Grossman
2005-03-14 20:22                   ` [ANNOUNCE] Experimental Driver for Neterion/S2io 10GbE Adapters Alex Aizman
2005-03-14 20:38                     ` David S. Miller
2005-03-14 20:53                       ` Leonid Grossman
2005-03-14 23:27                         ` Andi Kleen
2005-03-14 23:45                           ` Jeff Garzik
2005-03-15  0:32                             ` Leonid Grossman
2005-03-15  1:07                           ` Alex Aizman
2005-03-15  1:29                             ` Rick Jones
2005-03-15  2:28                               ` Leonid Grossman
2005-03-15 15:07                             ` Leonid Grossman
2005-03-15 15:55                               ` Leonid Grossman
2005-03-19 20:15                                 ` Andi Kleen
2005-03-19 22:19                                   ` Leonid Grossman
2005-03-20 13:40                                     ` jamal
2005-03-20 20:13                                       ` Leonid Grossman
2005-03-15  5:14                     ` Scott Feldman
2005-03-15  5:59                       ` Matt Mackall
2005-03-15  6:02                       ` Leonid Grossman
2005-02-22 17:27                 ` Intel and TOE in the news Andi Kleen
2005-02-19 20:29     ` Lennert Buytenhek
2005-03-02 13:48   ` Lennert Buytenhek
2005-03-02 17:34     ` Leonid Grossman
2005-02-21 13:59 ` P
2005-02-21 14:10   ` jamal
2005-02-21 22:44 ` Stephen Hemminger

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