Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757184AbbLBWxE (ORCPT ); Wed, 2 Dec 2015 17:53:04 -0500 Received: from mga09.intel.com ([134.134.136.24]:19855 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755237AbbLBWxC (ORCPT ); Wed, 2 Dec 2015 17:53:02 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,375,1444719600"; d="scan'208";a="6478377" From: "Brown, Len" To: Andy Lutomirski , "linux-kernel@vger.kernel.org" , X86 ML , "Hunter, Adrian" Subject: RE: Skylake (XPS 13 9350) TSC is way off Thread-Topic: Skylake (XPS 13 9350) TSC is way off Thread-Index: AQHRLT0SS09Y3kIFQkWWSZSw/Im2rJ64TT/g Date: Wed, 2 Dec 2015 22:52:48 +0000 Message-ID: <1A7043D5F58CCB44A599DFD55ED4C948469538F6@fmsmsx115.amr.corp.intel.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.1.200.106] Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id tB2Mr95a009556 Content-Length: 902 Lines: 23 +adrian > [ 0.000000] tsc: PIT calibration matches HPET. 2 loops > [ 0.000000] tsc: Detected 2399.975 MHz processor > [ 0.090897] TSC deadline timer enabled > [ 1.960034] tsc: Refined TSC clocksource calibration: 2400.007 MHz > [ 1.960039] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: > 0x22983e30402, max_idle_ns: 440795260848 ns > [ 2.959936] clocksource: Switched to clocksource tsc > [ 87.168211] Adjusting tsc more than 11% (5941981 vs 7759439) > > This is more or less Linus' latest tree (v4.4-rc3 plus some unrelated > platform driver patches). Hi Andy, Thanks for the note. I'll send you a debug version of turbostat, off list, since the list will just block mail with that attachment. thanks, -Len ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?