Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1231868

Re: [PATCH] hid: enable hid device to suspend/resume asynchronously

From "Fu, Zhonghui" <zhonghui.fu@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] hid: enable hid device to suspend/resume asynchronously
Date 2015-09-24 08:10 +0200
Message-ID <qc7Tc-2Wj-7@gated-at.bofh.it> (permalink)
References <pYuZk-3nQ-13@gated-at.bofh.it> <q4Z4o-39P-63@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw



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,
>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

Re: [PATCH] hid: enable hid device to suspend/resume asynchronously "Fu, Zhonghui" <zhonghui.fu@linux.intel.com> - 2015-09-24 08:10 +0200
  Re: [PATCH] hid: enable hid device to suspend/resume  asynchronously Jiri Kosina <jikos@kernel.org> - 2015-09-25 14:10 +0200

csiph-web