netdev - Re: [PATCH v8 net-next 4/5] net-device: reorganize net

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231202202813.mhrv76taop7bermr@google.com>
Date: Sat, 2 Dec 2023 20:28:13 +0000
From: Shakeel Butt <shakeelb@...gle.com>
To: Coco Li <lixiaoyan@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>, 
	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 07:27:55AM +0000, Coco Li 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: Shakeel Butt <shakeelb@...gle.com>