netdev - Re: [PATCH net-next 1/2] tcp_cubic: add SNMP counters to track how effective is Hystart

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Message-ID: <1417741805.22424.42.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 04 Dec 2014 17:10:05 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Florian Westphal <fw@...len.de>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Nandita Dukkipati <nanditad@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>,
	Sangtae Ha <sangtae.ha@...il.com>
Subject: Re: [PATCH net-next 1/2] tcp_cubic: add SNMP counters to track how
 effective is Hystart

On Fri, 2014-12-05 at 01:17 +0100, Florian Westphal wrote:

> Alternatively we could add INET_DIAG_CUBICINFO and export such info via ss
> tool.

Thats a complete different model.

When studying some param changes on servers handling million of flows,
SNMP hosts stats are giving the picture, without having to collect huge
ss info in the background and aggregating it.


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