Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754829AbbFCNpy (ORCPT ); Wed, 3 Jun 2015 09:45:54 -0400 Received: from mail-ie0-f176.google.com ([209.85.223.176]:36358 "EHLO mail-ie0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751800AbbFCNpq (ORCPT ); Wed, 3 Jun 2015 09:45:46 -0400 MIME-Version: 1.0 In-Reply-To: <556EB717.9070607@intel.com> References: <20150602194350.GN1187@tassilo.jf.intel.com> <20150602202037.GO1187@tassilo.jf.intel.com> <20150602233820.GP1187@tassilo.jf.intel.com> <20150603003938.GQ1187@tassilo.jf.intel.com> <20150603033013.GR1187@tassilo.jf.intel.com> <556EB717.9070607@intel.com> Date: Wed, 3 Jun 2015 06:45:45 -0700 X-Google-Sender-Auth: jHhS4J8Okho6ZfIagJCwOdDH-FU Message-ID: Subject: Re: [PATCH RFC] x86, tsc: Allow for high latency in quick_pit_calibrate() From: Linus Torvalds To: Adrian Hunter Cc: Andi Kleen , Thomas Gleixner , Andy Lutomirski , LKML , X86 ML , "H. Peter Anvin" , Len Brown Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 593 Lines: 16 On Wed, Jun 3, 2015 at 1:13 AM, Adrian Hunter wrote: > > Yeah, so the (only?) downside is the 50ms wasted on Fast TSC > calibration. What about this? That's certainly simpler. What platform is this? Do you have access to hw people you can shake down and ask what clock we can really _trust_? Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/