netdev - Re: Regression: kernel 4.14 an later very slow with many ipsec tunnels

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Message-ID: <20181002145616.pwdhbmafgsihbxvm@breakpoint.cc>
Date:   Tue, 2 Oct 2018 16:56:16 +0200
From:   Florian Westphal <fw@...len.de>
To:     Wolfgang Walter <linux@...m.de>
Cc:     Florian Westphal <fw@...len.de>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        christophe.gouault@...nd.com
Subject: Re: Regression: kernel 4.14 an later very slow with many ipsec
 tunnels

Wolfgang Walter <linux@...m.de> wrote:
> Since my last reply to this message I didn't get a reply: is there any 
> progress how to fix this performance regression I missed?

Did you test/experiment with hthresh config option?

> Or are we stuck here with longterm kernel 4.9 for a long time?

I'm experimenting with per-dst inexact lists in an rbtree but
this will take time.