linux-kernel - Re: [PATCH 14/24] workqueue: Generalize unbound CPU pods

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Message-ID: <ZMhJNZLWQHInDf4e@slm.duckdns.org>
Date:   Mon, 31 Jul 2023 13:52:21 -1000
From:   Tejun Heo <tj@...nel.org>
To:     K Prateek Nayak <kprateek.nayak@....com>
Cc:     Sandeep Dhavale <dhavale@...gle.com>, jiangshanlai@...il.com,
        torvalds@...ux-foundation.org, peterz@...radead.org,
        linux-kernel@...r.kernel.org, kernel-team@...a.com,
        joshdon@...gle.com, brho@...gle.com, briannorris@...omium.org,
        nhuck@...gle.com, agk@...hat.com, snitzer@...nel.org,
        void@...ifault.com, kernel-team@...roid.com
Subject: Re: [PATCH 14/24] workqueue: Generalize unbound CPU pods

Hello,

On Tue, Jul 11, 2023 at 08:32:27AM +0530, K Prateek Nayak wrote:
> > Yeah, that's a bit surprising given that in terms of affinity behavior
> > "numa" should be identical to base. The only meaningful differences that I
> > can think of is when the work item is assigned to its worker and maybe how
> > pwq max_active limit is applied. Hmm... can you monitor the number of
> > kworker kthreads while running the benchmark? No need to do the whole
> > matrix, just comparing base against numa should be enough.
> 
> Sure. I'll get back to you with the data soon.

Any updates? I'd like to proceed with the patchset as it helps resolving
problems others are reporting. I can try to reproduce the results too if you
can share more details on how they're run.

Thanks.

-- 
tejun