From: Roland Dreier <roland@topspin.com>
To: hadi@cyberus.ca
Cc: netdev@oss.sgi.com, Eric Lemoine <eric.lemoine@gmail.com>,
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, 03 Jan 2005 07:57:14 -0800 [thread overview]
Message-ID: <52brc68q05.fsf@topspin.com> (raw)
In-Reply-To: <1104764660.1048.578.camel@jzny.localdomain> (jamal's message of "03 Jan 2005 10:04:21 -0500")
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
next prev parent reply other threads:[~2005-01-03 15:57 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 [this message]
2005-01-03 16:41 ` Eric Lemoine
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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