netdev - Re: [RFC HACK] xfrm: make state refcounting percpu

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Message-ID: <20190503064618.GM17989@gauss3.secunet.de>
Date:   Fri, 3 May 2019 08:46:18 +0200
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Vakul Garg <vakul.garg@....com>
CC:     Florian Westphal <fw@...len.de>,
        "netdev@...r.kernel.org" <netdev@...r.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.klassert@...unet.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?