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From: jamal <hadi@cyberus.ca>
To: David Miller <davem@davemloft.net>
Cc: kaber@trash.net, peter.p.waskiewicz.jr@intel.com,
	netdev@vger.kernel.org, jeff@garzik.org,
	auke-jan.h.kok@intel.com
Subject: Re: [PATCH] NET: Multiqueue network device support.
Date: Thu, 07 Jun 2007 08:22:42 -0400	[thread overview]
Message-ID: <1181218962.4064.48.camel@localhost> (raw)
In-Reply-To: <1181178481.4064.121.camel@localhost>

On Wed, 2007-06-06 at 21:08 -0400, jamal wrote:

> It's too depressing - so i came back here for a break ;->

I am sure you would agree it was too depressing ;->

> As a side note: You will have to do a lot of surgery to the current code
> to make tx run on multi CPUs. It needs some experimenting to get right.
> And i am begining to like Herberts changes ;->

On clear morning thinking:
There is a scenario where multi CPUs will benefit and that is if a
single CPU cant pump fast enough to fill the wire. I think this may have
been your initial comment but we digressed into the locks. I still think
the bottleneck on the tx that needs to improve is IO (DMA, PCI/X/E etc).

And as you know though that requires some major surgery (given the
multiple producer single consumer approach we have today) and certainly
Peters patches dont add value in that direction.

cheers,
jamal


  reply	other threads:[~2007-06-07 12:22 UTC|newest]

Thread overview: 153+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-04 21:40 [RFC] NET: Multiple queue hardware support PJ Waskiewicz
2007-06-04 21:40 ` [PATCH] NET: Multiqueue network device support PJ Waskiewicz
2007-06-05 11:50   ` jamal
2007-06-05 15:51     ` Waskiewicz Jr, Peter P
2007-06-05 22:28       ` jamal
2007-06-06 15:11         ` Patrick McHardy
2007-06-06 22:13           ` jamal
2007-06-06 22:30             ` Waskiewicz Jr, Peter P
2007-06-06 22:40               ` David Miller
2007-06-06 23:35                 ` jamal
2007-06-06 23:56                   ` David Miller
2007-06-07 16:08                     ` Stephen Hemminger
2007-06-07 16:59                       ` Waskiewicz Jr, Peter P
2007-06-11 12:08                         ` Patrick McHardy
2007-06-07 22:04                       ` jamal
2007-06-09 14:58               ` Leonid Grossman
2007-06-09 19:23                 ` jamal
2007-06-09 21:23                   ` Leonid Grossman
2007-06-09 22:14                     ` Jeff Garzik
2007-06-10  3:02                     ` jamal
2007-06-10 15:27                       ` Leonid Grossman
2007-06-06 22:35             ` David Miller
2007-06-06 22:57               ` Waskiewicz Jr, Peter P
2007-06-06 23:00                 ` David Miller
2007-06-06 23:14                   ` Waskiewicz Jr, Peter P
2007-06-06 23:36                     ` Jeff Garzik
2007-06-06 23:32               ` jamal
2007-06-06 23:48                 ` Rick Jones
2007-06-06 23:54                   ` jamal
2007-06-07  0:01                     ` David Miller
2007-06-06 23:58                   ` David Miller
2007-06-06 23:52                 ` David Miller
2007-06-07  0:47                   ` Jeff Garzik
2007-06-07 12:29                     ` jamal
2007-06-07 15:03                       ` Kok, Auke
2007-06-07 21:57                         ` jamal
2007-06-07 22:06                           ` Kok, Auke
2007-06-07 22:26                             ` jamal
2007-06-07 22:30                               ` Kok, Auke
2007-06-07 22:57                                 ` jamal
2007-06-07 22:44                           ` David Miller
2007-06-07 22:54                             ` jamal
2007-06-07 23:00                               ` David Miller
2007-06-07 23:03                                 ` jamal
2007-06-08  0:31                                 ` Sridhar Samudrala
2007-06-08  1:35                                   ` jamal
2007-06-08 10:39                                     ` Herbert Xu
2007-06-08 11:34                                       ` jamal
2007-06-08 12:37                                         ` Herbert Xu
2007-06-08 13:12                                           ` jamal
2007-06-09 11:08                                             ` Herbert Xu
2007-06-09 14:36                                               ` jamal
2007-06-08  5:32                                   ` Krishna Kumar2
2007-06-08 19:55                                     ` Waskiewicz Jr, Peter P
2007-06-09  0:24                                       ` jamal
2007-06-07 22:55                             ` Waskiewicz Jr, Peter P
2007-06-09  1:05                               ` Ramkrishna Vepa
2007-06-06 23:53                 ` David Miller
2007-06-07  1:08                   ` jamal
2007-06-07 12:22                     ` jamal [this message]
2007-06-11 12:01                 ` Patrick McHardy
2007-06-11 11:58             ` Patrick McHardy
2007-06-11 12:23               ` jamal
2007-06-11 12:39                 ` Patrick McHardy
2007-06-11 12:52                   ` jamal
2007-06-11 13:03                     ` Patrick McHardy
2007-06-11 13:29                       ` jamal
2007-06-11 14:03                         ` Patrick McHardy
2007-06-11 14:30                           ` Cohen, Guy
2007-06-11 14:38                             ` Patrick McHardy
2007-06-11 14:48                             ` jamal
2007-06-11 15:00                               ` Tomas Winkler
2007-06-11 15:14                                 ` jamal
2007-06-11 15:34                               ` Cohen, Guy
2007-06-11 22:22                                 ` jamal
2007-06-12 14:04                                   ` Cohen, Guy
2007-06-12 15:23                                     ` jamal
2007-06-12 23:38                                     ` jamal
2007-06-11 14:40                           ` jamal
2007-06-11 14:49                             ` Patrick McHardy
2007-06-11 15:05                               ` jamal
2007-06-11 15:12                                 ` Patrick McHardy
2007-06-11 15:25                                   ` jamal
2007-06-11 15:44                                     ` Patrick McHardy
2007-06-11 21:35                                       ` jamal
2007-06-11 23:01                                         ` Patrick McHardy
2007-06-12  0:58                                         ` Patrick McHardy
2007-06-12  2:29                                           ` jamal
2007-06-12 13:21                                             ` Patrick McHardy
2007-06-12 15:12                                               ` jamal
2007-06-12 21:02                                               ` David Miller
2007-06-12 21:13                                                 ` Jeff Garzik
2007-06-12 21:17                                                   ` Ben Greear
2007-06-12 21:26                                                     ` David Miller
2007-06-12 21:46                                                       ` Jeff Garzik
2007-06-12 21:52                                                         ` Roland Dreier
2007-06-12 21:59                                                           ` Jeff Garzik
2007-06-12 22:04                                                             ` David Miller
2007-06-12 22:18                                                               ` Jeff Garzik
2007-06-12 22:00                                                           ` David Miller
2007-06-12 21:53                                                         ` David Miller
2007-06-12 22:01                                                           ` Jeff Garzik
2007-06-12 21:46                                                       ` Ben Greear
2007-06-12 21:54                                                         ` David Miller
2007-06-12 22:30                                                         ` Jeff Garzik
2007-06-12 22:40                                                           ` Ben Greear
2007-06-12 21:47                                                       ` Jason Lunz
2007-06-12 21:55                                                         ` David Miller
2007-06-12 22:17                                                           ` Jason Lunz
2007-06-13  3:41                                                         ` Leonid Grossman
2007-06-13 16:44                                                   ` Rick Jones
2007-06-12 21:17                                                 ` Patrick McHardy
2007-06-13  5:56                                                   ` Zhu Yi
2007-06-13 11:34                                                     ` Patrick McHardy
2007-06-14  1:51                                                       ` Zhu Yi
2007-06-13 12:32                                                     ` jamal
2007-06-13 13:12                                                       ` Robert Olsson
2007-06-13 13:33                                                         ` jamal
2007-06-13 15:01                                                           ` Leonid Grossman
2007-06-13 15:53                                                           ` Robert Olsson
2007-06-13 18:20                                                           ` David Miller
2007-06-13 18:22                                                             ` Waskiewicz Jr, Peter P
2007-06-13 21:30                                                             ` jamal
2007-06-14  2:44                                                       ` Zhu Yi
2007-06-14 11:48                                                         ` jamal
2007-06-15  1:27                                                           ` Zhu Yi
2007-06-15 10:49                                                             ` jamal
2007-06-18  1:18                                                               ` Zhu Yi
2007-06-18 15:16                                                                 ` jamal
2007-06-19  2:12                                                                   ` Zhu Yi
2007-06-19 16:04                                                                     ` jamal
2007-06-20  5:51                                                                       ` Zhu Yi
2007-06-21 15:39                                                                         ` jamal
2007-06-22  1:26                                                                           ` Zhu Yi
2007-06-25 16:47                                                                             ` jamal
2007-06-25 20:47                                                                               ` David Miller
2007-06-26 13:27                                                                                 ` jamal
2007-06-26 20:57                                                                                   ` David Miller
2007-06-27 22:32                                                                                     ` jamal
2007-06-27 22:54                                                                                       ` David Miller
2007-06-28  0:15                                                                                         ` jamal
2007-06-28  0:31                                                                                           ` David Miller
2007-06-12  9:19                 ` Johannes Berg
2007-06-12 12:17                   ` jamal
2007-06-11 17:36   ` Patrick McHardy
2007-06-11 18:05     ` Waskiewicz Jr, Peter P
2007-06-11 18:07       ` Patrick McHardy
2007-06-13 18:34     ` Waskiewicz Jr, Peter P
2007-06-11 17:52   ` Patrick McHardy
2007-06-11 17:57     ` Waskiewicz Jr, Peter P
2007-06-11 18:05       ` Patrick McHardy
2007-06-11 18:15         ` Waskiewicz Jr, Peter P
2007-06-11 18:24           ` Patrick McHardy

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