netdev - Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs via page

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Date:   Mon, 10 Dec 2018 09:54:18 +0200
From:   Ilias Apalodimas <ilias.apalodimas@...aro.org>
To:     Willy Tarreau <w@....eu>
Cc:     Jesper Dangaard Brouer <brouer@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Florian Westphal <fw@...len.de>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Toke Høiland-Jørgensen <toke@...e.dk>,
        ard.biesheuvel@...aro.org, Jason Wang <jasowang@...hat.com>,
        BjörnTöpel <bjorn.topel@...el.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        mykyta.iziumtsev@...il.com,
        Daniel Borkmann <borkmann@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Tariq Toukan <tariqt@...lanox.com>
Subject: Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs
 via page_pool API

Hi Willy,
> 
> I'll try to run some tests on my clearfog later, but for now I'm still
> 100% busy until haproxy 1.9 gets released.

Great. Keep in mind there's multiple hardware this drivers sits on. If your 
clearfog hardware usues the software buffer manager then you can test. We
haven't done any changes to the 'hardware buffer manager' portion of the code
though. 

Test wise, you should see similar numbers for 64b-256b packets since the driver
internally recycled buffers for packets of that size. The tests we did with
256b-512b packets showed significant increases.

Thanks!
/Ilias