netdev - Re: [PATCH net-next v4] net: skb: introduce and use a single page frag cache

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Message-Id: <166450446690.30186.16482162810476880962.git-patchwork-notify@kernel.org>
Date:   Fri, 30 Sep 2022 02:21:06 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, alexanderduyck@...com
Subject: Re: [PATCH net-next v4] net: skb: introduce and use a single page frag
 cache

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 28 Sep 2022 10:43:09 +0200 you wrote:
> After commit 3226b158e67c ("net: avoid 32 x truesize under-estimation
> for tiny skbs") we are observing 10-20% regressions in performance
> tests with small packets. The perf trace points to high pressure on
> the slab allocator.
> 
> This change tries to improve the allocation schema for small packets
> using an idea originally suggested by Eric: a new per CPU page frag is
> introduced and used in __napi_alloc_skb to cope with small allocation
> requests.
> 
> [...]

Here is the summary with links:
  - [net-next,v4] net: skb: introduce and use a single page frag cache
    https://git.kernel.org/netdev/net-next/c/dbae2b062824

You are awesome, thank you!
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