From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751628AbbEZX7b (ORCPT ); Tue, 26 May 2015 19:59:31 -0400 Received: from v094114.home.net.pl ([79.96.170.134]:45456 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751188AbbEZX7a convert rfc822-to-8bit (ORCPT ); Tue, 26 May 2015 19:59:30 -0400 From: "Rafael J. Wysocki" To: eun.taik.lee@samsung.com Cc: pavel@ucw.cz, len.brown@intel.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] suspend/resume performance improvement Date: Wed, 27 May 2015 02:24:59 +0200 Message-ID: <6784182.VyN0PstglH@vostro.rjw.lan> User-Agent: KMail/4.11.5 (Linux/4.0.0+; KDE/4.11.5; x86_64; ; ) In-Reply-To: <1141174354.499851432649147087.JavaMail.weblogic@epmlwas01d> References: <1141174354.499851432649147087.JavaMail.weblogic@epmlwas01d> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.