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From: Benjamin LaHaise <bcrl@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Brian Raymond <braymond@fvc.com>,
	"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>
Subject: Re: Async UDP I/O?
Date: Mon, 26 Nov 2001 17:01:05 -0500	[thread overview]
Message-ID: <20011126170105.A15582@redhat.com> (raw)
In-Reply-To: <6A5AF4EA59EB214BB0267741CE2C86EF0E07F5@neptune.cuseeme.com> <E168TX1-00070O-00@the-village.bc.nu>
In-Reply-To: <E168TX1-00070O-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Mon, Nov 26, 2001 at 09:43:15PM +0000

On Mon, Nov 26, 2001 at 09:43:15PM +0000, Alan Cox wrote:
> What do you mean by "asynchronous UDP" - all UDP is asynchronous. You ask
> it to send it and it gets queued or dropped somewhere - its not subject
> to flow control like TCP
> 
> Can you explain more ?

Async receive helps a lot when you've got tons of open sockets (needed to 
get queuing right).  I think that the current tx mechanism is broken; it's 
quite useful to get backpressure from network devices for things like mlppp 
implemented the right way (as a network protocol, instead of its own layer).

		-ben

      reply	other threads:[~2001-11-26 22:01 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-11-26 21:07 Brian Raymond
2001-11-26 21:43 ` Alan Cox
2001-11-26 22:01   ` Benjamin LaHaise [this message]

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