Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753600AbbGFGvi (ORCPT ); Mon, 6 Jul 2015 02:51:38 -0400 Received: from mga14.intel.com ([192.55.52.115]:2350 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753522AbbGFGvb (ORCPT ); Mon, 6 Jul 2015 02:51:31 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,413,1432623600"; d="scan'208";a="741246659" Message-ID: <559A24DA.7040004@intel.com> Date: Mon, 06 Jul 2015 09:48:58 +0300 From: Adrian Hunter Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Thomas Gleixner CC: Andi Kleen , Andy Lutomirski , LKML , Linus Torvalds , X86 ML , "H. Peter Anvin" , Len Brown , George Spelvin , Ingo Molnar , a.p.zijlstra@chello.nl, arjan@infradead.org, bp@alien8.de, penberg@iki.fi, akpm@linux-foundation.org Subject: Re: [PATCH RFC] x86, tsc: Allow for high latency in quick_pit_calibrate() 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> <5587EFC5.5010303@intel.com> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1223 Lines: 30 On 22/06/15 16:14, Thomas Gleixner wrote: > On Mon, 22 Jun 2015, Adrian Hunter wrote: >> On 03/06/15 19:23, Thomas Gleixner wrote: >>> On Wed, 3 Jun 2015, Adrian Hunter wrote: >>> >>>> On 03/06/15 06:30, Andi Kleen wrote: >>>>>> Then the changelog should say that I think. The current text says >>>>>> "Fast TSC calibration will always fail", which, to me, suggests that >>>>>> either the slow calibration will work or that the changelog message >>>>>> should be changed. >>>>> >>>>> Ok. No, the slow calibration works I believe. >>>> >>>> Yeah, so the (only?) downside is the 50ms wasted on Fast TSC >>>> calibration. What about this? >>> >>> I'm certainly happy to apply this one. >> >> George Spelvin began investigating improving quick_pit_calibrate() but Ingo >> anyway suggested this patch as the first, so can this be applied? > > Oh, yes. I simply forgot to pick it up. Thanks for the reminder. Sorry to bother you, but I don't still don't see the patch anywhere? -- 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/