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Subject: Re: question on select:  How big can the empty buffer space be before select returns ready-to-write?
To: chris@wirex.com (Chris Wright)
Date: Mon, 10 Dec 2001 08:38:18 +0000 (GMT)
Cc: greearb@candelatech.com (Ben Greear),
        linux-kernel@vger.kernel.org (linux-kernel)
In-Reply-To: <20011209233349.C27109@figure1.int.wirex.com> from "Chris Wright" at Dec 09, 2001 11:33:49 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> 
> * Ben Greear (greearb@candelatech.com) wrote:
> > For instance, it appears that select will return that a socket is
> > writable when there is, say 8k of buffer space in it.  However, if
> > I'm sending 32k UDP packets, this still causes me to drop packets
> > due to a lack of resources...
> 
> udp has a fixed 8k max payload. did you try breaking up your packets?

UDP has a 64K - headers max payload. 

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