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Message-ID: <CANn89i+4o+V44oaXGCEfkVWBTCRzFFCEhvanG6DckVS10NSNjQ@mail.gmail.com> Date: Thu, 30 Nov 2023 11:49:14 +0100 From: Eric Dumazet <edumazet@...gle.com> To: Coco Li <lixiaoyan@...gle.com> Cc: Jakub Kicinski <kuba@...nel.org>, Neal Cardwell <ncardwell@...gle.com>, Mubashir Adnan Qureshi <mubashirq@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>, Jonathan Corbet <corbet@....net>, David Ahern <dsahern@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org, Chao Wu <wwchao@...gle.com>, Wei Wang <weiwan@...gle.com>, Pradeep Nemavat <pnemavat@...gle.com> Subject: Re: [PATCH v8 net-next 4/5] net-device: reorganize net_device fast path variables On Wed, Nov 29, 2023 at 8:28 AM Coco Li <lixiaoyan@...gle.com> wrote: > > Reorganize fast path variables on tx-txrx-rx order > Fastpath variables end after npinfo. > > Below data generated with pahole on x86 architecture. > > Fast path variables span cache lines before change: 12 > Fast path variables span cache lines after change: 4 > > Suggested-by: Eric Dumazet <edumazet@...gle.com> > Reviewed-by: David Ahern <dsahern@...nel.org> > Signed-off-by: Coco Li <lixiaoyan@...gle.com> > --- Reviewed-by: Eric Dumazet <edumazet@...gle.com>
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