From: "David S. Miller" <davem@redhat.com>
To: ak@suse.de
Cc: leonid.grossman@neterion.com, davem@davemloft.net,
hadi@cyberus.ca, becker@scyld.com, rick.jones2@hp.com,
netdev@oss.sgi.com
Subject: Re: RFC: NAPI packet weighting patch
Date: Wed, 22 Jun 2005 19:19:56 -0400 (EDT) [thread overview]
Message-ID: <20050622.191956.39166724.davem@redhat.com> (raw)
In-Reply-To: <20050622231300.GC14251@wotan.suse.de>
From: Andi Kleen <ak@suse.de>
Date: Thu, 23 Jun 2005 01:13:00 +0200
> The computing time must be quite long to be really a win.
> You need to waste a few hundred cycles at least on a modern fast CPU.
SKB allocation more than fits this requirement, and that is exactly
what the RX descriptor replenishment will do.
Even if SKB allocation was only half the necessary number of cycles
for the prefetch to hit the cpu, it'd still be a win.
next prev parent reply other threads:[~2005-06-22 23:19 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-06 20:29 RFC: NAPI packet weighting patch Ronciak, John
2005-06-06 23:55 ` Mitch Williams
2005-06-07 0:08 ` Ben Greear
2005-06-08 1:50 ` Jesse Brandeburg
2005-06-07 4:53 ` Stephen Hemminger
2005-06-07 12:38 ` jamal
2005-06-07 12:06 ` Martin Josefsson
2005-06-07 13:29 ` jamal
2005-06-07 12:36 ` Martin Josefsson
2005-06-07 16:34 ` Robert Olsson
2005-06-07 23:19 ` Rick Jones
2005-06-21 20:37 ` David S. Miller
2005-06-22 7:27 ` Eric Dumazet
2005-06-22 8:42 ` P
2005-06-22 19:37 ` jamal
2005-06-23 8:56 ` P
2005-06-21 20:20 ` David S. Miller
2005-06-21 20:38 ` Rick Jones
2005-06-21 20:55 ` David S. Miller
2005-06-21 21:47 ` Andi Kleen
2005-06-21 22:22 ` Donald Becker
2005-06-21 22:34 ` Andi Kleen
2005-06-22 0:08 ` Donald Becker
2005-06-22 4:44 ` Chris Friesen
2005-06-22 11:31 ` Andi Kleen
2005-06-22 16:23 ` Leonid Grossman
2005-06-22 16:37 ` jamal
2005-06-22 18:00 ` Leonid Grossman
2005-06-22 18:06 ` Andi Kleen
2005-06-22 20:22 ` David S. Miller
2005-06-22 20:35 ` Rick Jones
2005-06-22 20:43 ` David S. Miller
2005-06-22 21:10 ` Andi Kleen
2005-06-22 21:16 ` David S. Miller
2005-06-22 21:53 ` Chris Friesen
2005-06-22 22:11 ` Andi Kleen
2005-06-22 21:38 ` Eric Dumazet
2005-06-22 22:13 ` Eric Dumazet
2005-06-22 22:30 ` David S. Miller
2005-06-22 22:23 ` David S. Miller
2005-06-23 12:14 ` jamal
2005-06-23 17:36 ` David Mosberger
2005-06-22 22:42 ` Leonid Grossman
2005-06-22 23:13 ` Andi Kleen
2005-06-22 23:19 ` David S. Miller [this message]
2005-06-22 23:23 ` Andi Kleen
2005-06-22 17:05 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2005-06-07 16:23 Ronciak, John
2005-06-07 20:21 ` David S. Miller
2005-06-08 2:20 ` Jesse Brandeburg
2005-06-08 3:31 ` David S. Miller
2005-06-08 3:43 ` David S. Miller
2005-06-08 13:36 ` jamal
2005-06-09 21:37 ` Jesse Brandeburg
2005-06-09 22:05 ` Stephen Hemminger
2005-06-09 22:12 ` Jesse Brandeburg
2005-06-09 22:21 ` David S. Miller
2005-06-09 22:21 ` jamal
2005-06-09 22:22 ` David S. Miller
2005-06-09 22:20 ` jamal
2005-06-06 15:35 Ronciak, John
2005-06-06 19:47 ` David S. Miller
2005-06-03 18:19 Ronciak, John
2005-06-03 18:33 ` Ben Greear
2005-06-03 18:49 ` David S. Miller
2005-06-03 18:59 ` Ben Greear
2005-06-03 19:02 ` David S. Miller
2005-06-03 20:17 ` Robert Olsson
2005-06-03 20:30 ` David S. Miller
2005-06-03 17:40 Ronciak, John
2005-06-03 18:08 ` Robert Olsson
2005-06-03 0:11 Ronciak, John
2005-06-03 0:18 ` David S. Miller
2005-06-03 2:32 ` jamal
2005-06-03 17:43 ` Mitch Williams
2005-06-03 18:38 ` David S. Miller
2005-06-03 18:42 ` jamal
2005-06-03 19:01 ` David S. Miller
2005-06-03 19:28 ` Mitch Williams
2005-06-03 19:59 ` jamal
2005-06-03 20:31 ` David S. Miller
2005-06-03 21:12 ` Jon Mason
2005-06-03 20:22 ` David S. Miller
2005-06-03 20:29 ` David S. Miller
2005-06-03 19:49 ` Michael Chan
2005-06-03 20:59 ` Lennert Buytenhek
2005-06-03 20:35 ` Michael Chan
2005-06-03 22:29 ` jamal
2005-06-04 0:25 ` Michael Chan
2005-06-05 21:36 ` David S. Miller
2005-06-06 6:43 ` David S. Miller
2005-06-03 23:26 ` Lennert Buytenhek
2005-06-05 20:11 ` David S. Miller
2005-06-03 21:07 ` Edgar E Iglesias
2005-06-03 23:30 ` Lennert Buytenhek
2005-06-03 20:30 ` Ben Greear
2005-06-03 19:40 ` jamal
2005-06-03 20:23 ` jamal
2005-06-03 20:28 ` Mitch Williams
2005-06-02 21:19 Ronciak, John
2005-06-02 21:31 ` Stephen Hemminger
2005-06-02 21:40 ` David S. Miller
2005-06-02 21:51 ` Jon Mason
2005-06-02 22:12 ` David S. Miller
2005-06-02 22:19 ` Jon Mason
2005-06-02 22:15 ` Robert Olsson
2005-05-26 21:36 Mitch Williams
2005-05-27 8:21 ` Robert Olsson
2005-05-27 11:18 ` jamal
2005-05-27 15:50 ` Stephen Hemminger
2005-05-27 20:27 ` Mitch Williams
2005-05-27 21:01 ` Stephen Hemminger
2005-05-28 0:56 ` jamal
2005-05-31 17:35 ` Mitch Williams
2005-05-31 17:40 ` Stephen Hemminger
2005-05-31 17:43 ` Mitch Williams
2005-05-31 22:07 ` Jon Mason
2005-05-31 22:14 ` David S. Miller
2005-05-31 23:28 ` Jon Mason
2005-06-02 12:26 ` jamal
2005-06-02 17:30 ` Stephen Hemminger
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