linux-kernel - Re: [RFC PATCH] suspend/resume performance improvement

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Date:	Wed, 27 May 2015 02:24:59 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	eun.taik.lee@...sung.com
Cc:	pavel@....cz, len.brown@...el.com, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] suspend/resume performance improvement

On Tuesday, May 26, 2015 02:05:48 PM 이은택 wrote:
> When a task that calls state_store() to suspend
> the device has used up most of its time slice,
> suspend sometimes take too long. (User noticeable)
> 
> Suspend/resume is a system wide operation.
> So, instead of depending on a userspace task's time
> slice, let kworker do the work to avoid a long wait
> on the runqueue.

All of that seems to duplicate the existing autosleep.c functionality.


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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