From: "Vladimir Vdovin" <deliran@verdict.gg>
To: "Florian Westphal" <fw@strlen.de>,
"Vladimir Vdovin" <deliran@verdict.gg>
Cc: <netfilter-devel@vger.kernel.org>, <pablo@netfilter.org>,
<coreteam@netfilter.org>, <phil@nwl.cc>
Subject: Re: [PATCH nf-next] netfilter: nf_conncount: make number of hash slots configurable
Date: Wed, 15 Apr 2026 16:32:05 +0300 [thread overview]
Message-ID: <DHTRLCVFNCOG.3VDTTB7NRAZFX@verdict.gg> (raw)
In-Reply-To: <adz9CyDXi2wSwvjM@strlen.de>
On Mon Apr 13, 2026 at 5:26 PM MSK, Florian Westphal wrote:
> Vladimir Vdovin <deliran@verdict.gg> wrote:
>> Some workloads with high conntrack rate
>> generate high lock contention on insert_tree(), so
>> constant 256 CONNCOUNT_SLOTS can be too small.
>
> No. Compile time options suck. No distro is going
> to alter the value away from the default.
>
> Maybe change the code to size the array dynamically
> based on e.g. number of online cpus?
Hi Florian,
May be we could move it to module params?
(not sure that this params have to depend on number of cpu)
May be use number of cpus as default value?
Best Regards,
Vladimir
next prev parent reply other threads:[~2026-04-15 13:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-13 12:37 [PATCH nf-next] netfilter: nf_conncount: make number of hash slots configurable Vladimir Vdovin
2026-04-13 13:27 ` Fernando Fernandez Mancera
2026-04-15 13:29 ` Vladimir Vdovin
2026-04-13 14:26 ` Florian Westphal
2026-04-15 13:32 ` Vladimir Vdovin [this message]
2026-04-15 13:44 ` Florian Westphal
2026-04-15 14:10 ` Vladimir Vdovin
2026-04-15 14:43 ` Florian Westphal
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