netdev - Re: [PATCH v2 net-next] tcp: switch orphan

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Message-Id: <163429381163.2368.12610989324854729622.git-patchwork-notify@kernel.org>
Date:   Fri, 15 Oct 2021 10:30:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        edumazet@...gle.com, sfb@...gle.com, ncardwell@...gle.com
Subject: Re: [PATCH v2 net-next] tcp: switch orphan_count to bare per-cpu counters

Hello:

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

On Thu, 14 Oct 2021 06:41:26 -0700 you wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> Use of percpu_counter structure to track count of orphaned
> sockets is causing problems on modern hosts with 256 cpus
> or more.
> 
> Stefan Bach reported a serious spinlock contention in real workloads,
> that I was able to reproduce with a netfilter rule dropping
> incoming FIN packets.
> 
> [...]

Here is the summary with links:
  - [v2,net-next] tcp: switch orphan_count to bare per-cpu counters
    https://git.kernel.org/netdev/net-next/c/19757cebf0c5

You are awesome, thank you!
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