From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx111.postini.com [74.125.245.111]) by kanga.kvack.org (Postfix) with SMTP id AF7CC6B0034 for ; Tue, 16 Jul 2013 19:36:40 -0400 (EDT) Received: from /spool/local by e23smtp09.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 17 Jul 2013 20:32:10 +1000 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [9.190.235.21]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 0A9BF2CE802D for ; Wed, 17 Jul 2013 09:36:34 +1000 (EST) Received: from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r6GNaOwh6881642 for ; Wed, 17 Jul 2013 09:36:24 +1000 Received: from d23av02.au.ibm.com (loopback [127.0.0.1]) by d23av02.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r6GNaXqU024649 for ; Wed, 17 Jul 2013 09:36:33 +1000 Date: Wed, 17 Jul 2013 07:36:32 +0800 From: Wanpeng Li Subject: Re: [PATCH] mm: vmstats: tlb flush counters Message-ID: <20130716233632.GD30164@hacker.(null)> Reply-To: Wanpeng Li References: <20130716155304.AF1A88F8@viggo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130716155304.AF1A88F8@viggo.jf.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Dave Hansen Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org On Tue, Jul 16, 2013 at 08:53:04AM -0700, Dave Hansen wrote: >I was investigating some TLB flush scaling issues and realized >that we do not have any good methods for figuring out how many >TLB flushes we are doing. > >It would be nice to be able to do these in generic code, but the >arch-independent calls don't explicitly specify whether we >actually need to do remote flushes or not. In the end, we really >need to know if we actually _did_ global vs. local invalidations, >so that leaves us with few options other than to muck with the >counters from arch-specific code. > >Signed-off-by: Dave Hansen > There is no context in the patch? >-- >To unsubscribe, send a message with 'unsubscribe linux-mm' in >the body to majordomo@kvack.org. For more info on Linux MM, >see: http://www.linux-mm.org/ . >Don't email: email@kvack.org -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org