netdev - Re: [PATCH RESEND net-next v14 0/5] ethtool: provide the dim profile fine-tuning channel

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Date: Thu, 20 Jun 2024 20:40:25 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Heng Qi <hengqi@...ux.alibaba.com>
Cc: netdev@...r.kernel.org, virtualization@...ts.linux.dev, "David S .
 Miller" <davem@...emloft.net>, Paolo Abeni <pabeni@...hat.com>, Eric
 Dumazet <edumazet@...gle.com>, Jason Wang <jasowang@...hat.com>, "Michael S
 . Tsirkin" <mst@...hat.com>, Brett Creeley <bcreeley@....com>, Ratheesh
 Kannoth <rkannoth@...vell.com>, Alexander Lobakin
 <aleksander.lobakin@...el.com>, Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Tal
 Gilboa <talgi@...dia.com>, Jonathan Corbet <corbet@....net>,
 linux-doc@...r.kernel.org, Maxime Chevallier
 <maxime.chevallier@...tlin.com>, Jiri Pirko <jiri@...nulli.us>, Paul
 Greenwalt <paul.greenwalt@...el.com>, Ahmed Zaki <ahmed.zaki@...el.com>,
 Vladimir Oltean <vladimir.oltean@....com>, Kory Maincent
 <kory.maincent@...tlin.com>, Andrew Lunn <andrew@...n.ch>,
 justinstitt@...gle.com, donald.hunter@...il.com, Eugenio Pérez <eperezma@...hat.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Dragos Tatulea <dtatulea@...dia.com>, Rahul
 Rameshbabu <rrameshbabu@...dia.com>, Heiner Kallweit
 <hkallweit1@...il.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
 awel Dembicki <paweldembicki@...il.com>
Subject: Re: [PATCH RESEND net-next v14 0/5] ethtool: provide the dim
 profile fine-tuning channel

On Tue, 18 Jun 2024 10:56:39 +0800 Heng Qi wrote:
> The NetDIM library provides excellent acceleration for many modern
> network cards. However, the default profiles of DIM limits its maximum
> capabilities for different NICs, so providing a way which the NIC can
> be custom configured is necessary.

Could you give an example in the cover letter of a type of workload and
how much a new set of DIM values helped?