Subject: Re: [RFC] net: ipv4 -- Introduce ifa limit per net

From: Cyrill Gorcunov <[email-masked]>
Date: Wed, 9 Mar 2016 19:51:28 +0300

On Wed, Mar 09, 2016 at 07:39:19PM +0300, Cyrill Gorcunov wrote:
> On Sun, Mar 06, 2016 at 08:06:41PM +0300, Cyrill Gorcunov wrote:
> > > 
> > > Well, this looks like LOCKDEP kernel. Are you really running LOCKDEP on
> > > production kernels ?
> > 
> 
> Hi Eric, David. Sorry for the delay. Finally I've measured the
> latency on the hw. It's i7-2600 cpu with 16G of memory. Here
> are the collected data.
...
> 
> 
> Also here is a graph for the data collected (blue line: unpatched
> version, red -- patched. Of course with patched version it become
> a way more better but still hanging).
> 
> https://docs.google.com/spreadsheets/d/1eyQDxjuZY2DHKYksGACpHDDcV1Bd92e-ZiY8ywPKshA/edit?usp=sharing
> 
> The perf output earlier shows the "perf top" when addresses
> are created and when they are releasing.

In text form
-------------
Num of addresses	Unpatched (sec)		Patched (sec)
4			1			1
2704			5			5
10404			20			20
23104			45			42
40804			83			74
63504			139			113