Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756246AbcDDTXs (ORCPT ); Mon, 4 Apr 2016 15:23:48 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:38593 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752875AbcDDTXr (ORCPT ); Mon, 4 Apr 2016 15:23:47 -0400 User-Agent: K-9 Mail for Android In-Reply-To: <1459797143.6219.22.camel@redhat.com> References: <1459539771-4251-1-git-send-email-cmetcalf@mellanox.com> <1459797143.6219.22.camel@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Subject: Re: [PATCH] nohz_full: Make sched_should_stop_tick() more conservative From: Peter Zijlstra Date: Mon, 04 Apr 2016 21:23:29 +0200 To: Rik van Riel , Chris Metcalf , Frederic Weisbecker , Christoph Lameter , Ingo Molnar , Luiz Capitulino , Thomas Gleixner , Viresh Kumar , linux-kernel@vger.kernel.org Message-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 402 Lines: 13 On 4 April 2016 21:12:23 CEST, Rik van Riel wrote: >What is the difference between cfs_rq->h_nr_running, >and rq->cfs.nr_running? > >Why do we have two? H is for hierarchy. That counts the total of runnable tasks in the entire child hierarchy. Nr_running is the number of se entities in the current tree. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.