linux-kernel - RE: [PATCH 0/5] Enabling the asynchronous threads for other phases

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Date:	Mon, 10 Feb 2014 08:36:57 +0000
From:	"Liu, Chuansheng" <chuansheng.liu@...el.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
CC:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"pavel@....cz" <pavel@....cz>, "Brown, Len" <len.brown@...el.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Li, Zhuangzhi" <zhuangzhi.li@...el.com>
Subject: RE: [PATCH 0/5] Enabling the asynchronous threads for other phases

Hello Rafael,

> -----Original Message-----
> From: Rafael J. Wysocki [mailto:rjw@...ysocki.net]
> Sent: Thursday, February 06, 2014 5:53 AM
> To: Liu, Chuansheng
> Cc: gregkh@...uxfoundation.org; pavel@....cz; Brown, Len;
> linux-pm@...r.kernel.org; linux-kernel@...r.kernel.org; Li, Zhuangzhi
> Subject: Re: [PATCH 0/5] Enabling the asynchronous threads for other phases
> 
> On Monday, January 20, 2014 04:44:34 PM Liu, Chuansheng wrote:
> > Hello,
> >
> > This patch series are for enabling the asynchronous threads for the phases
> > resume_noirq, resume_early, suspend_noirq and suspend_late.
> >
> > Just like commit 5af84b82701a and 97df8c12995, with async threads it will
> > reduce the system suspending and resuming time significantly.
> >
> > With these patches, in my test platform, it saved 80% time in resume_noirq
> > phase.
> >
> > Has done the suspend-resume stress test for a long time, please help to
> > review.
> >
> > Best Regards,
> >
> > [PATCH 1/5] PM: Adding two flags for async suspend_noirq and
> > [PATCH 2/5] PM: Enabling the asynchronous threads for resume_noirq
> > [PATCH 3/5] PM: Enabling the asyncronous threads for resume_early
> > [PATCH 4/5] PM: Enabling the asyncronous threads for suspend_noirq
> > [PATCH 5/5] PM: Enabling the asyncronous threads for suspend_late
> 
> I've applied this to the bleeding-edge branch of the linux-pm.git tree, with
> minor changes related to coding style, white space etc.
Thanks your help.

> 
> Can you please verify that the bleeding-edge branch works for you as
> expected?
I have picked them from your bleeding-edge branch and has done the
suspend-resume stress test for about 200 times and 3 hours,
It is still working well.

Best Regards
Chuansheng Liu