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Date: Wed, 3 Feb 2016 00:09:59 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Alfred Perlstein <alfred@freebsd.org>
Cc: Xin LI <delphij@gmail.com>,
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Subject: Re: svn commit: r295136 - in head: sys/kern sys/netinet sys/sys
 usr.bin/netstat
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On Tue, Feb 02, 2016 at 12:35:47PM -0800, Alfred Perlstein wrote:

> > I would second John's comment on the necessity of the change though, 
> > if one already have 32K of *backlogged* connections, it's probably not 
> > very useful to allow more coming in.  It sounds like the application 
> > itself is seriously broken, and unless expanding the field have some 
> > performance benefit, I don't think it should stay.
> 
> Imagine a hugely busy image board like 2ch.net, if there is a single 
> hiccup, it's very possible to start dropping connections.

In reality start dropping connections in any case: nobody will be
infinity wait of accept (user close browser and go away, etc).

Also, if you have more then 4K backloged connections -- you have
problem, you can't process all connections request and in next second
you will be have 8K, after next second -- 12K and etc.