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Date:	Sat, 15 Mar 2008 09:32:16 -0700
From:	"Ray Lee" <>
To:	"Marc Perkel" <>, Netdev <>
Subject: Re: TCP stack optimization for high number of connections [OT]

(CC:netdev added.)

On Sat, Mar 15, 2008 at 8:47 AM, Marc Perkel <> wrote:
> 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
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