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Date: Wed, 28 May 2003 22:22:14 +0400 (MSD)
From: Igor Sysoev <is@rambler-co.ru>
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To: Garrett Wollman <wollman@lcs.mit.edu>
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cc: freebsd-net@freebsd.org
Subject: Re: turning off TCP_NOPUSH
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On Wed, 28 May 2003, Garrett Wollman wrote:

> <<On Wed, 28 May 2003 17:05:59 +0400 (MSD), Igor Sysoev <is@rambler-co.ru> said:
> 
> > always calls tcp_output() when TCP_NOPUSH is turned off.  I think
> > tcp_output() should be called only if data in the send buffer is less
> > than MSS:
> 
> I believe that this is intentional.  The application had to explicitly
> enable TCP_NOPUSH, so if the application disables it explicitly, then
> we interpret that as meaning that the application wants to send a PSH
> segment immediately.

As I understand if the data in the send buffer is bigger than MSS it means
that TCP stack has some reason not to send it and this reason is not
TF_NOPUSH flag.  Am I wrong ?


Igor Sysoev
http://sysoev.ru/en/