netdev - Re: [PATCH net-next v2] page_pool: check for dma_sync

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Message-ID: <20250104075121.393adef7@kernel.org>
Date: Sat, 4 Jan 2025 07:51:21 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Furong Xu <0x1207@...il.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Jesper Dangaard
 Brouer <hawk@...nel.org>, Ilias Apalodimas <ilias.apalodimas@...aro.org>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Simon Horman
 <horms@...nel.org>
Subject: Re: [PATCH net-next v2] page_pool: check for dma_sync_size earlier

On Fri,  3 Jan 2025 16:28:14 +0800 Furong Xu wrote:
> This is a micro optimization, about 0.6% overall performance improvement
> has been observed on a Cortex-A53 platform.

You need to say more about how you measured this improvement.
Is it PPS improvement in a traffic test?
Measured using a micro-benchmark?
Based on first order metric or by comparing perf output?
-- 
pw-bot: cr