From: Eric Lemoine <eric.lemoine@gmail.com>
To: Roland Dreier <roland@topspin.com>
Cc: netdev@oss.sgi.com, hadi@cyberus.ca, Andi Kleen <ak@suse.de>,
openib-general@openib.org, Patrick McHardy <kaber@trash.net>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: LLTX and netif_stop_queue
Date: Mon, 3 Jan 2005 17:41:05 +0100 [thread overview]
Message-ID: <5cac192f05010308414a25b548@mail.gmail.com> (raw)
In-Reply-To: <52brc68q05.fsf@topspin.com>
On Mon, 03 Jan 2005 07:57:14 -0800, Roland Dreier <roland@topspin.com> wrote:
> jamal> Andi or anyone else - has anyone really done perfomance
> jamal> analysis of LLTX (with anything other than loopback) and
> jamal> shown it has any value? Maybe time to just shoot the damn
> jamal> thing.
>
> For the IPoIB driver, it seems to be worth a couple percent. It's
> hard to get really consistent results but on my pair of test systems,
> TCP throughput with netperf goes up by about 30 Mbps out of roughly
> 1900 Mbps total. It's probably not worth the complexity in the net
> core if all drivers only get that level of improvement.
>
> - Roland
>
What are your machines? In particular, how many CPUs do they have?
--
Eric
next prev parent reply other threads:[~2005-01-03 16:41 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-17 21:57 LLTX and netif_stop_queue Roland Dreier
2004-12-18 5:44 ` David S. Miller
2004-12-18 15:35 ` Roland Dreier
2004-12-18 17:58 ` Roland Dreier
2004-12-18 18:26 ` Roland Dreier
2004-12-19 19:33 ` jamal
2004-12-19 19:31 ` jamal
2004-12-19 19:54 ` jamal
2004-12-19 20:02 ` Jamal Hadi Salim
2004-12-19 22:35 ` Roland Dreier
2004-12-19 23:06 ` jamal
2004-12-19 23:16 ` Roland Dreier
2004-12-22 18:49 ` Eric Lemoine
2004-12-23 4:29 ` David S. Miller
2004-12-23 4:38 ` Roland Dreier
2004-12-23 9:10 ` Eric Lemoine
2004-12-23 16:37 ` Patrick McHardy
2004-12-23 18:11 ` Eric Lemoine
2004-12-24 16:10 ` Eric Lemoine
2004-12-28 13:31 ` jamal
2005-01-02 23:30 ` Eric Lemoine
2005-01-03 7:41 ` Eric Lemoine
2005-01-03 15:04 ` jamal
2005-01-03 15:48 ` Eric Lemoine
2005-01-03 15:57 ` Roland Dreier
2005-01-03 16:41 ` Eric Lemoine [this message]
2005-01-03 16:54 ` Roland Dreier
2005-01-03 17:07 ` Eric Lemoine
2005-01-03 17:12 ` Grant Grundler
2005-01-04 4:18 ` jamal
2005-01-19 22:47 ` David S. Miller
2005-01-19 23:18 ` Stephen Hemminger
2005-01-19 23:41 ` David S. Miller
2005-01-20 0:02 ` [openib-general] " Jeff Garzik
2005-01-20 0:46 ` Stephen Hemminger
2005-01-20 0:47 ` David S. Miller
2005-01-20 0:47 ` Francois Romieu
2005-01-20 0:52 ` David S. Miller
2005-01-20 1:17 ` Francois Romieu
2005-01-20 0:46 ` [PATCH]: was " David S. Miller
2005-01-20 3:14 ` Andi Kleen
2005-01-20 7:05 ` David S. Miller
2005-01-20 3:43 ` Roland Dreier
2005-01-20 7:05 ` David S. Miller
2005-01-20 13:51 ` Tommy Christensen
2005-01-20 21:34 ` David S. Miller
2005-01-20 21:56 ` Grant Grundler
2005-01-21 1:01 ` David S. Miller
2005-01-22 3:17 ` Roland Dreier
2005-01-22 3:53 ` David S. Miller
2005-01-20 21:41 ` David S. Miller
2005-01-20 16:56 ` Stephen Hemminger
2005-01-21 10:54 ` Lennert Buytenhek
2005-01-26 6:27 ` David S. Miller
2005-01-26 13:25 ` Lennert Buytenhek
2005-01-27 6:32 ` David S. Miller
2005-01-27 7:16 ` Andi Kleen
2005-01-27 7:22 ` David S. Miller
2005-01-27 8:26 ` Andi Kleen
2005-01-20 19:16 ` Jeff Garzik
2005-01-20 4:01 ` jamal
2005-01-20 5:18 ` David S. Miller
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