linux-kernel - Re: [PATCH V3 7/7] workqueue: Process extra works in rescuer when there are no more to rescue

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Message-ID: <aSC9pc8iusYxII5M@slm.duckdns.org>
Date: Fri, 21 Nov 2025 09:29:41 -1000
From: Tejun Heo <tj@...nel.org>
To: Lai Jiangshan <jiangshanlai@...il.com>
Cc: linux-kernel@...r.kernel.org, ying chen <yc1082463@...il.com>,
	Lai Jiangshan <jiangshan.ljs@...group.com>
Subject: Re: [PATCH V3 7/7] workqueue: Process extra works in rescuer when
 there are no more to rescue

On Fri, Nov 21, 2025 at 10:57:20PM +0800, Lai Jiangshan wrote:
> From: Lai Jiangshan <jiangshan.ljs@...group.com>
> 
> Make the rescuer process more work on the last pwq when there are no
> more to rescue for the whole workqueue to help the regular workers in
> case it is a temporary relief and to reduce relapse.
> 
> Also limit the number of extra works.
> 
> Signed-off-by: Lai Jiangshan <jiangshan.ljs@...group.com>

Is this based on some empirical case? Can you give a concrete example?

Thanks.

-- 
tejun