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From: Andi Kleen <andi@firstfloor.org>
To: David Miller <davem@davemloft.net>
Cc: hkchu@google.com, johnwheffner@gmail.com, rick.jones2@hp.com,
	netdev@vger.kernel.org
Subject: Re: Socket buffer sizes with autotuning
Date: Fri, 25 Apr 2008 09:48:34 +0200	[thread overview]
Message-ID: <48118CD2.6000706@firstfloor.org> (raw)
In-Reply-To: <20080425.002804.152322163.davem@davemloft.net>

David Miller wrote:
> From: Andi Kleen <andi@firstfloor.org>
> Date: Fri, 25 Apr 2008 09:06:48 +0200
> 
>> The only big problem then would be if there are more submitting threads
>> than packets in the TX queue, but I would consider that unlikely for
>> GB+ NICs at least (might be an issue for older designs with smaller queues)
> 
> It's probably exactly what happens in those chat server benchmarks.

In that case we might be better off just blocking some of these threads
until the TX queue cleared? What good is it to send faster than the
network allows?

-Andi



  reply	other threads:[~2008-04-25  7:48 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <d1c2719f0804241829s1bc3f41ejf7ebbff73ed96578@mail.gmail.com>
2008-04-25  7:06 ` Socket buffer sizes with autotuning Andi Kleen
2008-04-25  7:28   ` David Miller
2008-04-25  7:48     ` Andi Kleen [this message]
2008-04-23 23:29 Jerry Chu
2008-04-24 16:32 ` John Heffner
2008-04-25  0:49   ` Jerry Chu
2008-04-25  6:46     ` David Miller
2008-04-25 21:29       ` Jerry Chu
2008-04-25 21:35         ` David Miller
2008-04-28 18:30       ` Jerry Chu
2008-04-28 19:21         ` John Heffner
2008-04-28 20:44           ` Jerry Chu
     [not found]           ` <d1c2719f0804281338j3984cf2bga31def0c2c1192a1@mail.gmail.com>
2008-04-28 23:28             ` John Heffner
2008-04-28 23:35               ` David Miller
2008-04-29  2:20               ` Jerry Chu
2008-04-25  7:05 ` David Miller
2008-05-07  3:57   ` Jerry Chu
2008-05-07  4:27     ` David Miller
2008-05-07 18:36       ` Jerry Chu
2008-05-07 21:18         ` David Miller
2008-05-08  1:37           ` Jerry Chu
2008-05-08  1:43             ` David Miller
2008-05-08  3:33               ` Jerry Chu
2008-05-12 22:22                 ` Jerry Chu
2008-05-12 22:29                   ` David Miller
2008-05-12 22:31                     ` David Miller
2008-05-13  3:56                       ` Jerry Chu
2008-05-13  3:58                         ` David Miller
2008-05-13  4:00                           ` Jerry Chu
2008-05-13  4:02                             ` David Miller
2008-05-17  1:13                               ` Jerry Chu
2008-05-17  1:29                                 ` David Miller
2008-05-17  1:47                                   ` Jerry Chu
2008-05-12 22:58                     ` Jerry Chu
2008-05-12 23:01                       ` David Miller
2008-05-07  4:28     ` David Miller
2008-05-07 18:54       ` Jerry Chu
2008-05-07 21:20         ` David Miller
2008-05-08  0:16           ` Jerry Chu
  -- strict thread matches above, loose matches on Subject: below --
2008-04-23  0:38 Rick Jones
2008-04-23  2:17 ` John Heffner
2008-04-23  3:59   ` David Miller
2008-04-23 16:32     ` Rick Jones
2008-04-23 16:58       ` John Heffner
2008-04-23 17:24         ` Rick Jones
2008-04-23 17:41           ` John Heffner
2008-04-23 17:46             ` Rick Jones
2008-04-24 22:21     ` Andi Kleen
2008-04-24 22:39       ` John Heffner
2008-04-25  1:28       ` David Miller
     [not found]       ` <65634d660804242234w66455bedve44801a98e3de9d9@mail.gmail.com>
2008-04-25  6:36         ` David Miller
2008-04-25  7:42           ` Tom Herbert
2008-04-25  7:46             ` David Miller
2008-04-28 17:51               ` Tom Herbert

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