linux-kernel - Re: Doubts about listen backlog and tcp_max_syn

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Message-ID: <50FED7CE.1030008@hp.com>
Date:	Tue, 22 Jan 2013 10:17:50 -0800
From:	Rick Jones <rick.jones2@...com>
To:	Leandro Lucarella <leandro.lucarella@...iomantic.com>
CC:	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Doubts about listen backlog and tcp_max_syn_backlog


> What is important is the backlog, and I guess you didn't increase it
> properly. The somaxconn default is quite low (128)

Leandro -

If that is being overflowed, I believe you should be seeing something like:

     14 SYNs to LISTEN sockets dropped

in the output of netstat -s on the system on which the server 
application is running.

rick
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