From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2993617AbcBSUiu (ORCPT ); Fri, 19 Feb 2016 15:38:50 -0500 Received: from mga04.intel.com ([192.55.52.120]:1298 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2992763AbcBSUis (ORCPT ); Fri, 19 Feb 2016 15:38:48 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,472,1449561600"; d="scan'208";a="889878901" From: Jacob Pan To: LKML , Rafael Wysocki , Thomas Gleixner , Linux PM Cc: Srinivas Pandruvada , Peter Zijlstra , "David S. Miller" , Andrew Morton , Rusty Russell , Jacob Pan Subject: [PATCH v4 0/2] powercap/rapl: reduce ipi calls and misc clean up Date: Fri, 19 Feb 2016 12:37:31 -0800 Message-Id: <1455914253-18138-1-git-send-email-jacob.jun.pan@linux.intel.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes since V3: - Avoid for_each_online_cpu() search for per package MSR access. This is achieved by tracking a per package lead cpu via cpumask_xx() calls. (suggested by Thomas Gleixner ) - Add direct reference of RAPL package for each RAPL domain. This patch optimize remote IPI calls for MSR access. Jacob Pan (2): cpumask: export cpumask_any_but powercap/rapl: reduce ipi calls drivers/powercap/intel_rapl.c | 224 ++++++++++++++++++++++-------------------- lib/cpumask.c | 1 + 2 files changed, 119 insertions(+), 106 deletions(-) -- 1.9.1