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From: Tejun Heo <tj@kernel.org>
To: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: linux-kernel@vger.kernel.org, ying chen <yc1082463@gmail.com>,
	Lai Jiangshan <jiangshan.ljs@antgroup.com>
Subject: Re: [PATCH V3 7/7] workqueue: Process extra works in rescuer when there are no more to rescue
Date: Fri, 21 Nov 2025 09:29:41 -1000	[thread overview]
Message-ID: <aSC9pc8iusYxII5M@slm.duckdns.org> (raw)
In-Reply-To: <20251121145720.342467-8-jiangshanlai@gmail.com>

On Fri, Nov 21, 2025 at 10:57:20PM +0800, Lai Jiangshan wrote:
> From: Lai Jiangshan <jiangshan.ljs@antgroup.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@antgroup.com>

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

Thanks.

-- 
tejun

  reply	other threads:[~2025-11-21 19:29 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-21 14:57 [PATCH V3 0/7] workqueue: Factor the way to assign rescuer work Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 1/7] workqueue: Factor out assign_rescuer_work() Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 2/7] workqueue: Only assign rescuer work when really needed Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 3/7] workqueue: Don't rely on wq->rescuer to stop rescuer Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 4/7] workqueue: Loop over in rescuer until all its work is done Lai Jiangshan
2025-11-21 19:30   ` Tejun Heo
2025-11-21 14:57 ` [PATCH V3 5/7] workqueue: Process rescuer work items one-by-one using a cursor Lai Jiangshan
2025-11-21 19:05   ` Tejun Heo
2025-11-21 14:57 ` [PATCH V3 6/7] workqueue: Limit number of processed works in rescuer per turn Lai Jiangshan
2025-11-21 19:28   ` Tejun Heo
2025-11-22  6:22     ` Lai Jiangshan
2025-11-22 14:26       ` Tejun Heo
2025-11-21 14:57 ` [PATCH V3 7/7] workqueue: Process extra works in rescuer when there are no more to rescue Lai Jiangshan
2025-11-21 19:29   ` Tejun Heo [this message]
2025-11-22  7:07     ` Lai Jiangshan
2025-11-22 14:31       ` Tejun Heo
2025-11-21 19:57 ` [PATCH V3 0/7] workqueue: Factor the way to assign rescuer work Tejun Heo

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