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Date: Thu, 30 Nov 2023 11:37:42 +0100
From: Eric Dumazet <>
To: Coco Li <>
Cc: Jakub Kicinski <>, Neal Cardwell <>, 
	Mubashir Adnan Qureshi <>, Paolo Abeni <>, Andrew Lunn <>, 
	Jonathan Corbet <>, David Ahern <>, 
	Daniel Borkmann <>,, Chao Wu <>, 
	Wei Wang <>, Pradeep Nemavat <>
Subject: Re: [PATCH v8 net-next 1/5] Documentations: Analyze heavily used
 Networking related structs

On Wed, Nov 29, 2023 at 8:28 AM Coco Li <> wrote:
> Analyzed a few structs in the networking stack by looking at variables
> within them that are used in the TCP/IP fast path.
> Fast path is defined as TCP path where data is transferred from sender to
> receiver unidirectionally. It doesn't include phases other than
> TCP_ESTABLISHED, nor does it look at error paths.
> We hope to re-organizing variables that span many cachelines whose fast
> path variables are also spread out, and this document can help future
> developers keep networking fast path cachelines small.

Reviewed-by: Eric Dumazet <>

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