netdev - Re: [PATCH net-next] net: set SK_MEM

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Message-ID: <CADVnQym2dWf8R7Gvx2c03nuiWFLHKrEZM8zOUbF6JFesSRuiCw@mail.gmail.com>
Date:   Mon, 31 Oct 2016 15:01:14 -0400
From:   Neal Cardwell <ncardwell@...gle.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Yuchung Cheng <ycheng@...gle.com>
Subject: Re: [PATCH net-next] net: set SK_MEM_QUANTUM to 4096

On Mon, Oct 31, 2016 at 2:58 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
>
> From: Eric Dumazet <edumazet@...gle.com>
>
> Systems with large pages (64KB pages for example) do not always have
> huge quantity of memory.
>
> A big SK_MEM_QUANTUM value leads to fewer interactions with the
> global counters (like tcp_memory_allocated) but might trigger
> memory pressure much faster, thus suboptimal TCP performance
> since windows are lowered to ridiculous values.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---

 Acked-by: Neal Cardwell <ncardwell@...gle.com>

Thanks, Eric!

neal