netdev - Re: [PATCH] Add useful per-connection TCP stats for diagnosis purpose.

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Message-Id: <20110317.215150.112598866.davem@davemloft.net>
Date:	Thu, 17 Mar 2011 21:51:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hkchu@...gle.com
Cc:	shemminger@...tta.com, eric.dumazet@...il.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] Add useful per-connection TCP stats for diagnosis
 purpose.

From: Jerry Chu <hkchu@...gle.com>
Date: Thu, 17 Mar 2011 21:33:50 -0700

> Yes I'm familiar with ss and how inet_csk_diag_fill() calls into
> tcp_diag_get_info(),..., etc. Like I mentioned previously the netlink
> interface
> requires a new version of reader app (e.g., ss) to ship every time a new
> counter is added and exported by the kernel, whereas /proc/net/tcp does
> not have such a problem.

You can add new netlink attributes to portably extend the existing
info, and also to add a mechanism by which to make 'ss' utility
upgrades unnecessary.

Please, just use modern mechanisms like netlink and leave legacy
bits like /proc/net/tcp alone, thank you.
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