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Date: Thu, 07 Jul 2022 09:23:01 +0200
From: Antoine Tenart <atenart@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Eric Dumazet <edumazet@...gle.com>,
David Miller <davem@...emloft.net>,
Paolo Abeni <pabeni@...hat.com>,
netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] Documentation: add a description for net.core.high_order_alloc_disable
Quoting Jakub Kicinski (2022-07-06 23:18:39)
> On Wed, 6 Jul 2022 15:24:58 +0200 Eric Dumazet wrote:
> > linux-5.14 allowed high-order pages to be stored on the per-cpu lists.
> >
> > I ran again the benchmark cited in commit ce27ec60648d to confirm that
> > the slowdown we had before 5.14 for
> > high number of alloc/frees per second is no more.
>
> Sounds useful to know - Antoine, do you reckon we can include a mention
> of this knob being mostly of historical importance?
Sure, I'll send a v2 with that.
Thanks!
Antoine
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