From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Brskt <contact@brskt.be>
Cc: netfilter@vger.kernel.org
Subject: Re: List chain during attack high CPU usage
Date: Thu, 1 Sep 2022 12:34:15 +0200 [thread overview]
Message-ID: <YxCKp2yQT1mu096e@salvia> (raw)
In-Reply-To: <b5e3e3d3-9631-31a4-7fc0-7193bdc10176@brskt.be>
On Wed, Aug 31, 2022 at 02:18:17AM +0200, Brskt wrote:
> Hello,
>
> I'm using some filter which uses sets with meters. When the server is
> receiving a lot of packets per seconds (~800k+) and using the command to
> list the chain, it does take ~80% of CPU and take a long time to return an
> output.
>
> # cat /etc/issue
> Welcome to Alpine Linux 3.16
>
> # nft -v
> nftables v1.0.5 (Lester Gooch #4)
>
> # uname -r
> 5.15.62-1-lts
Could you provide more information on your setup? ruleset?
Ruleset listing is also lockless.
It is hard to guess with this short notice.
next prev parent reply other threads:[~2022-09-01 10:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 0:18 List chain during attack high CPU usage Brskt
2022-09-01 10:34 ` Pablo Neira Ayuso [this message]
2022-09-07 14:54 ` Pablo Neira Ayuso
-- strict thread matches above, loose matches on Subject: below --
2023-08-03 11:49 Brskt
2023-08-22 9:56 ` Pablo Neira Ayuso
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