Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933496AbbBCK1y (ORCPT ); Tue, 3 Feb 2015 05:27:54 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:40765 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751640AbbBCK1x (ORCPT ); Tue, 3 Feb 2015 05:27:53 -0500 Date: Tue, 3 Feb 2015 10:27:46 +0000 From: Will Deacon To: Huang Ying Cc: Linus Torvalds , LKML , LKP ML Subject: Re: [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops Message-ID: <20150203102746.GA25497@arm.com> References: <1422949504.13951.5.camel@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1422949504.13951.5.camel@linux.intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 712 Lines: 17 On Tue, Feb 03, 2015 at 07:45:04AM +0000, Huang Ying wrote: > FYI, we noticed the below changes on > > commit 721c21c17ab958abf19a8fc611c3bd4743680e38 ("mm: mmu_gather: use > tlb->end != 0 only for TLB invalidation") Is this delta relative to the previous commit, or something else? The commit in question restored some 3.18 behaviour on task exit (namely doing a fullmm TLB flush), so it would be interesting to know if you see the same change against 3.18. Will -- 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/