netdev - Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... )

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Date:	Wed, 21 Apr 2010 04:35:40 +0500
From:	Gaspar Chilingarov <gasparch@...il.com>
To:	Ben Greear <greearb@...delatech.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount 
	of outgoing connections (unable to bind ... )

> I have 40,000 out-going connections to myself..basically I'm
> acting as both client and server.  So, I'd expect you to be

What is yours

sysctl -a | grep local_port_range

?


>
> Be sure to use lots of processes so you don't end up with
> a poll loop with 80,000 fd entries.  I found that 10k sockets
> per process was a good upper limit..but it's not a hard
> upper limit.

sure -- it's a next step :)

>
> And be sure to do the bind logic correctly as Eric pointed out in an
> earlier email.
>
> Thanks,
> Ben
>
> --
> Ben Greear <greearb@...delatech.com>
> Candela Technologies Inc  http://www.candelatech.com
>



-- 
Gaspar Chilingarov
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