Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758498AbcCVJo5 (ORCPT ); Tue, 22 Mar 2016 05:44:57 -0400 Received: from casper.infradead.org ([85.118.1.10]:48809 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755863AbcCVJow (ORCPT ); Tue, 22 Mar 2016 05:44:52 -0400 Date: Tue, 22 Mar 2016 10:44:49 +0100 From: Peter Zijlstra To: Zhao Lei Cc: linux-kernel@vger.kernel.org, Tejun Heo Subject: Re: [PATCH v4 0/4] cpuacct: split usage into user_usage and sys_usage Message-ID: <20160322094449.GK6344@twins.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 791 Lines: 19 On Tue, Mar 22, 2016 at 04:37:04PM +0800, Zhao Lei wrote: > Sometimes, cpuacct.usage is not detialed enough to user > to see how much usage a group used. We want to know how > much time it used in user mode and how much in kernel mode. > > This patch introduce some more files to tell user these information. > # ls /sys/fs/cgroup/cpuacct/cpuacct.usage* > /sys/fs/cgroup/cpuacct/cpuacct.usage > /sys/fs/cgroup/cpuacct/cpuacct.usage_percpu > /sys/fs/cgroup/cpuacct/cpuacct.usage_user > /sys/fs/cgroup/cpuacct/cpuacct.usage_percpu_user > /sys/fs/cgroup/cpuacct/cpuacct.usage_sys > /sys/fs/cgroup/cpuacct/cpuacct.usage_percpu_sys > > Changelog v3->v4: > 1: Add a patch to use for_each_possible_cpu to iterate all cpus, > Suggested-by: Peter Zijlstra Thanks!