linux-kernel - TCP stack optimization for high number of connections [OT]

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Message-ID: <873209.1586.qm@web52510.mail.re2.yahoo.com>
Date:	Sat, 15 Mar 2008 08:47:47 -0700 (PDT)
From:	Marc Perkel <mperkel@...oo.com>
To:	linux-kernel@...r.kernel.org
Subject: TCP stack optimization for high number of connections [OT]

I'm running a front end spam filtering service and I
get a lot of incoming connections but not a lot of
volume of traffic. I'm experiencing some high loads
and I think it might be related to the volume of
connections it's processing. I often will be connected
to 2500 email servers at once and a lot more that are
trying to connect and being denied.

My question - are there any optimizations I can do to
make the TCP faster for high number of short lived
connections?

Also - how much do iptable entries slow things down
and is there any optimizations for that?

Marc Perkel
Junk Email Filter dot com
http://www.junkemailfilter.com

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