netdev - Re: Scaling 'ip addr add' (was Re: What's the right way to use a *large* number of source addresses?)

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Message-ID: <1401241268.5367.266.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 27 May 2014 18:41:08 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	sowmini varadhan <sowmini05@...il.com>
Cc:	Jamal Hadi Salim <jhs@...atatu.com>,
	Niels Möller <nisse@...thpole.se>,
	netdev <netdev@...r.kernel.org>, Jonas Bonn <jonas@...thpole.se>
Subject: Re: Scaling 'ip addr add' (was Re: What's the right way to use a
 *large* number of source addresses?)

On Tue, 2014-05-27 at 17:29 -0400, sowmini varadhan wrote:

> Has anyone looked at consolidating some of this?
> All of this could easily become a factor when the system
> has a large number of interfaces and addresses, and the
> control plane only wants to modify a very small subset of
> that state.

You did not provide kernel version you used.

Last time I checked, we were spending _lot_ of time in check_lifetime()

( this stuff was added in linux-3.9 )


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