From: Jakub Kicinski <kuba@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Wander Lairson Costa <hawk@kernel.org>
Subject: Re: [PATCH net-next 0/2] net: Use SMP threads for backlog NAPI (or optional).
Date: Wed, 4 Oct 2023 15:46:09 -0700 [thread overview]
Message-ID: <20231004154609.6007f1a0@kernel.org> (raw)
In-Reply-To: <20230929162121.1822900-1-bigeasy@linutronix.de>
On Fri, 29 Sep 2023 18:20:18 +0200 Sebastian Andrzej Siewior wrote:
> - Patch #2 has been removed. Removing the warning is still an option.
>
> - There are two patches in the series:
> - Patch #1 always creates backlog threads
> - Patch #2 creates the backlog threads if requested at boot time,
> mandatory on PREEMPT_RT.
> So it is either or and I wanted to show how both look like.
>
> - The kernel test robot reported a performance regression with
> loopback (stress-ng --udp X --udp-ops Y) against the RFC version.
> The regression is now avoided by using local-NAPI if backlog
> processing is requested on the local CPU.
Not what we asked for, and it doesn't apply.
next prev parent reply other threads:[~2023-10-04 22:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 16:20 [PATCH net-next 0/2] net: Use SMP threads for backlog NAPI (or optional) Sebastian Andrzej Siewior
2023-09-29 16:20 ` [PATCH net-next 1/2] net: Use SMP threads for backlog NAPI Sebastian Andrzej Siewior
2023-09-29 16:20 ` [PATCH net-next 2/2] net: Allow to use " Sebastian Andrzej Siewior
2023-10-04 22:46 ` Jakub Kicinski [this message]
2023-10-07 15:59 ` [PATCH net-next 0/2] net: Use SMP threads for backlog NAPI (or optional) Sebastian Andrzej Siewior
2023-10-10 1:09 ` Jakub Kicinski
2023-10-16 9:53 ` Sebastian Andrzej Siewior
2023-10-16 14:17 ` Jakub Kicinski
2023-10-16 14:53 ` Sebastian Andrzej Siewior
2023-10-31 10:14 ` Sebastian Andrzej Siewior
2023-10-31 11:36 ` Wander Lairson Costa
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