netdev - Re: [PATCH v2] net: ena: Do not waste napi skb cache

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Date:   Tue, 01 Feb 2022 05:50:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Hyeonggon Yoo <42.hyeyoo@...il.com>
Cc:     netdev@...r.kernel.org, jwiedmann.dev@...il.com,
        shayagr@...zon.com, akiyano@...zon.com, darinzon@...zon.com,
        ndagan@...zon.com, saeedb@...zon.com, davem@...emloft.net,
        daniel@...earbox.net, sameehj@...zon.com, weiyongjun1@...wei.com,
        lorenzo@...nel.org, linux-kernel@...r.kernel.org, kuba@...nel.org
Subject: Re: [PATCH v2] net: ena: Do not waste napi skb cache

Hello:

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

On Sat, 29 Jan 2022 08:53:36 +0000 you wrote:
> By profiling, discovered that ena device driver allocates skb by
> build_skb() and frees by napi_skb_cache_put(). Because the driver
> does not use napi skb cache in allocation path, napi skb cache is
> periodically filled and flushed. This is waste of napi skb cache.
> 
> As ena_alloc_skb() is called only in napi, Use napi_build_skb()
> and napi_alloc_skb() when allocating skb.
> 
> [...]

Here is the summary with links:
  - [v2] net: ena: Do not waste napi skb cache
    https://git.kernel.org/netdev/net-next/c/7354a426e063

You are awesome, thank you!
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