> -----Original Message-----
> From: Steffen Klassert <steffen.klass...@secunet.com>
> Sent: Friday, May 3, 2019 12:16 PM
> To: Vakul Garg <vakul.g...@nxp.com>
> Cc: Florian Westphal <f...@strlen.de>; netdev@vger.kernel.org
> Subject: Re: [RFC HACK] xfrm: make state refcounting percpu
>
> On Fri, May 03, 2019 at 06:34:29AM +0000, Vakul Garg wrote:
> > > -----Original Message-----
> > > From: Steffen Klassert <steffen.klass...@secunet.com>
> > >
> > > Also, is this a new problem or was it always like that?
> >
> > It is always like this. On 4-core, 8-core platforms as well, these atomics
> consume significant cpu
> > (8 core cpu usage is more than 4 core).
>
> Ok, so it is not a regression. That's what I wanted to know.
>
> Did the patch from Florian improve the situation?
Actually I could not get time to try it yet.
Also I do not find Florian's patch making refcount in 'struct dst' to be pcpu.
So I think it may not help....
