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From: "Fu, Zhonghui" <zhonghui.fu@linux.intel.com>
To: Jiri Kosina <jikos@kernel.org>
Cc: linux-input@vger.kernel.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] hid: enable hid device to suspend/resume asynchronously
Date: Thu, 24 Sep 2015 14:07:47 +0800	[thread overview]
Message-ID: <56039333.8040208@linux.intel.com> (raw)
In-Reply-To: <alpine.LNX.2.00.1509041509510.30132@pobox.suse.cz>



On 2015/9/4 21:10, Jiri Kosina wrote:
> On Mon, 17 Aug 2015, Fu, Zhonghui wrote:
>
>> Enable hid device to suspend/resume asynchronously. This can improve
>> system suspend/resume speed.
> How well was this tested?
>
> Power management is notorious for not being really in excellent shape on 
> many HID devices.
>
> So I'd like to be careful.
I were on leave these days, so sorry for late reply.

This can reduce system suspend/resume time about 20ms, from 1030ms to 1010ms on ASUS T100TA machine. Although the improvement is not very significant, but this can let your parent/child device suspend/resume more asynchronously and take advantage of multicore to improve overall system suspend/resume speed.

I have resent this patch with updated commit message - "[PATCH v2] hid: enable hid device to suspend/resume asynchronously".


Thanks,
Zhonghui

>
> Thanks,
>


  reply	other threads:[~2015-09-24  6:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-17 15:55 [PATCH] hid: enable hid device to suspend/resume asynchronously Fu, Zhonghui
2015-08-24 15:15 ` Fu, Zhonghui
2015-09-04 13:10 ` Jiri Kosina
2015-09-24  6:07   ` Fu, Zhonghui [this message]
2015-09-25 12:05     ` Jiri Kosina

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