From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753291AbbJOXiG (ORCPT ); Thu, 15 Oct 2015 19:38:06 -0400 Received: from mga03.intel.com ([134.134.136.65]:30730 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752140AbbJOXiD (ORCPT ); Thu, 15 Oct 2015 19:38:03 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,687,1437462000"; d="scan'208";a="794231990" From: Andi Kleen To: peterz@infradead.org Cc: linux-kernel@vger.kernel.org Subject: perf: Some improvements for Skylake perf Date: Thu, 15 Oct 2015 16:37:56 -0700 Message-Id: <1444952280-24184-1-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 2.4.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchkit improves the Skylake core PMU perf port - Fix problems with LBR freezing with a new APIC ack sequence - Improve performance and accuracy of the NMI handler with counter freezing - Improve sampling quality with cycles:pp The last feature could be used on other CPUs too, but for now it's only enabled on Skylake. -Andi