From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755218AbcFQJ3q (ORCPT ); Fri, 17 Jun 2016 05:29:46 -0400 Received: from www.linutronix.de ([62.245.132.108]:49589 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752818AbcFQJ3p (ORCPT ); Fri, 17 Jun 2016 05:29:45 -0400 Date: Fri, 17 Jun 2016 11:27:37 +0200 (CEST) From: Thomas Gleixner To: Zhaoyang Huang cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, zhaoyang.huang@spreadtrum.com Subject: Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length In-Reply-To: <1466154816-17900-2-git-send-email-zhaoyang.huang@spreadtrum.com> Message-ID: References: <1466154816-17900-1-git-send-email-zhaoyang.huang@spreadtrum.com> <1466154816-17900-2-git-send-email-zhaoyang.huang@spreadtrum.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 17 Jun 2016, Zhaoyang Huang wrote: > There should be a gap between tick_nohz_idle_enter and > tick_nohz_get_sleep_length when idle, which will cause the > sleep_length is not very precised. Change it in this patch. What kind of imprecision are we talking about? Seconds, nanoseconds or lightyears? Your changelog lacks any form of useful information. Thanks, tglx