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Mail Archives: cygwin/2012/01/10/02:23:10

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To: cygwin AT cygwin DOT com
Subject: Re: socket performance
References: <95814509-4E08-44C6-8E59-026225EC0FF5 AT playsafesa DOT com> <4F04613B DOT 6050505 AT gmail DOT com> <B6F87B4D-C088-49BF-B52C-3D0168EAC78D AT playsafesa DOT com> <20120109134311 DOT GH15470 AT calimero DOT vinschen DOT de>
From: ht AT inf DOT ed DOT ac DOT uk (Henry S. Thompson)
Date: Tue, 10 Jan 2012 07:22:39 +0000
In-Reply-To: <20120109134311.GH15470@calimero.vinschen.de> (Corinna Vinschen's message of "Mon, 9 Jan 2012 14:43:11 +0100")
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Corinna Vinschen writes:

> it's nice to know that you could increase the performance by increasing
> the buffer sizes.  However, I'm reluctant to implement this as a generic
> option.  As far as I know the socket buffers are taken from nonpaged pool,
> so generically using 2 Meg buffers will take a lot of precious resources.

And contribute to bufferbloat problems [1] [2] elsewhere!

ht

[1] http://queue.acm.org/detail.cfm?id=2076798
[2] http://queue.acm.org/detail.cfm?id=2071893
-- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 650-4587, e-mail: ht AT inf DOT ed DOT ac DOT uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
 [mail from me _always_ has a .sig like this -- mail without it is forged spam]

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