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From: David Miller <davem@davemloft.net>
To: fw@strlen.de
Cc: linux@stwm.de, netdev@vger.kernel.org,
	steffen.klassert@secunet.com, linux-kernel@vger.kernel.org,
	torvalds@linux-foundation.org
Subject: Re: Regression: kernel 4.14 an later very slow with many ipsec tunnels
Date: Thu, 13 Sep 2018 10:23:05 -0700 (PDT)	[thread overview]
Message-ID: <20180913.102305.939671149040995911.davem@davemloft.net> (raw)
In-Reply-To: <20180913163848.ni5xc4gc4d6uusdn@breakpoint.cc>

From: Florian Westphal <fw@strlen.de>
Date: Thu, 13 Sep 2018 18:38:48 +0200

> Wolfgang Walter <linux@stwm.de> wrote:
>> What I can say is that it depends mainly on number of policy rules and SA.
> 
> Thats already a good hint, I guess we're hitting long hash chains in
> xfrm_policy_lookup_bytype().

I don't really see how recent changes can influence that.

And the bydst hashes have been dynamically sized for a very long time.

I might have missed something...

  reply	other threads:[~2018-09-13 17:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-13 11:30 Wolfgang Walter
2018-09-13 13:58 ` Florian Westphal
2018-09-13 15:46   ` Wolfgang Walter
2018-09-13 16:38     ` Florian Westphal
2018-09-13 17:23       ` David Miller [this message]
2018-09-13 21:03         ` Florian Westphal
2018-09-13 21:12           ` David Miller
2018-09-14  5:06           ` Steffen Klassert
2018-09-14  5:54             ` Florian Westphal
2018-09-14  6:01               ` Steffen Klassert
2018-09-14  8:01                 ` Christophe Gouault
2018-09-14 11:49               ` Wolfgang Walter
2018-10-02 14:45               ` Wolfgang Walter
2018-10-02 14:56                 ` Florian Westphal
2018-10-02 17:34                   ` Wolfgang Walter
2018-10-02 21:35                     ` Florian Westphal
2018-10-04 13:57                       ` Wolfgang Walter
2018-10-25  9:38                         ` Wolfgang Walter
2018-10-25 17:34                           ` David Miller
2018-10-25 19:24                             ` Florian Westphal
2018-10-26 12:18                             ` Wolfgang Walter
2018-10-25 22:45                           ` Florian Westphal

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