From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757380AbcBCRAE (ORCPT ); Wed, 3 Feb 2016 12:00:04 -0500 Received: from mail.kernel.org ([198.145.29.136]:54791 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755425AbcBCQ76 (ORCPT ); Wed, 3 Feb 2016 11:59:58 -0500 Message-Id: <20160203165658.910282657@goodmis.org> User-Agent: quilt/0.61-1 Date: Wed, 03 Feb 2016 11:56:58 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Peter Zijlstra , Thomas Gleixner , Juri Lelli , Clark Williams , Andrew Morton Subject: [RFC][PATCH 0/3 v2] sched: Display deadline bandwidth and other SCHED_DEBUG clean up Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm starting to play with SCHED_DEADLINE a bit and I'm able to cause a bandwidth "leak". Then I realized there's no way to examine what bandwidths are enabled on which CPUs. I added the bandwith ratios to the /proc/sched_debug file. I will be posting the SCHED_DEADLINE issue in a separate thread. # grep dl /proc/sched_debug dl_rq[0]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[1]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 104857 dl_rq[2]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[3]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[4]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[5]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[6]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 dl_rq[7]: .dl_nr_running : 0 .dl_bw->bw : 996147 .dl_bw->total_bw : 0 Before adding this code, I also realized there was a bit of SCHED_DEBUG code in the kernel/sched/core.c file, and decided to move that to kernel/sched/debug.c to clean the core.c file up a bit. Those patches are mostly orthognal to the deadline_bw file, but decided to group them together here. Changes since v1: o Added the bandwith to /proc/sched_debug instead of creating a new file. o Removed patch: sched: Move sched_domain_debug into debug.c As it was decided that debug.c shouldn't have domain debugging. Steven Rostedt (Red Hat) (3): sched: Move sched_feature file setup into debug.c sched: Move sched_domain_sysctl to debug.c sched: Add bandwidth ratio to /proc/sched_debug ---- kernel/sched/core.c | 311 -------------------------------------------------- kernel/sched/debug.c | 313 +++++++++++++++++++++++++++++++++++++++++++++++++++ kernel/sched/sched.h | 13 +++ 3 files changed, 326 insertions(+), 311 deletions(-)