netdev - Re: [PATCH net-next v5] net/smc: Use percpu ref for wr tx reference

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Message-Id: <167904362210.30854.17584893958310072644.git-patchwork-notify@kernel.org>
Date:   Fri, 17 Mar 2023 09:00:22 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kai Shen <KaiShen@...ux.alibaba.com>
Cc:     kgraul@...ux.ibm.com, wenjia@...ux.ibm.com, jaka@...ux.ibm.com,
        kuba@...nel.org, davem@...emloft.net, netdev@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-rdma@...r.kernel.org
Subject: Re: [PATCH net-next v5] net/smc: Use percpu ref for wr tx reference

Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@...emloft.net>:

On Fri, 17 Mar 2023 03:21:32 +0000 you wrote:
> The refcount wr_tx_refcnt may cause cache thrashing problems among
> cores and we can use percpu ref to mitigate this issue here. We
> gain some performance improvement with percpu ref here on our
> customized smc-r verion. Applying cache alignment may also mitigate
> this problem but it seem more reasonable to use percpu ref here.
> We can also replace wr_reg_refcnt with one percpu reference like
> wr_tx_refcnt.
> 
> [...]

Here is the summary with links:
  - [net-next,v5] net/smc: Use percpu ref for wr tx reference
    https://git.kernel.org/netdev/net-next/c/79a22238b4f2

You are awesome, thank you!
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