From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f46.google.com (mail-pb0-f46.google.com [209.85.160.46]) by kanga.kvack.org (Postfix) with ESMTP id 173696B0035 for ; Fri, 4 Apr 2014 02:27:30 -0400 (EDT) Received: by mail-pb0-f46.google.com with SMTP id rq2so2974785pbb.5 for ; Thu, 03 Apr 2014 23:27:29 -0700 (PDT) Received: from e28smtp01.in.ibm.com (e28smtp01.in.ibm.com. [122.248.162.1]) by mx.google.com with ESMTPS id iw3si4182876pac.14.2014.04.03.23.27.28 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 03 Apr 2014 23:27:29 -0700 (PDT) Received: from /spool/local by e28smtp01.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 4 Apr 2014 11:57:24 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 42594394003E for ; Fri, 4 Apr 2014 11:57:21 +0530 (IST) Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s346RDrN26542184 for ; Fri, 4 Apr 2014 11:57:13 +0530 Received: from d28av05.in.ibm.com (localhost [127.0.0.1]) by d28av05.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s346RJFD027403 for ; Fri, 4 Apr 2014 11:57:20 +0530 From: Madhavan Srinivasan Subject: [PATCH V2 0/2] FAULT_AROUND_ORDER patchset performance data for powerpc Date: Fri, 4 Apr 2014 11:57:13 +0530 Message-Id: <1396592835-24767-1-git-send-email-maddy@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, x86@kernel.org Cc: benh@kernel.crashing.org, paulus@samba.org, kirill.shutemov@linux.intel.com, rusty@rustcorp.com.au, akpm@linux-foundation.org, riel@redhat.com, mgorman@suse.de, ak@linux.intel.com, peterz@infradead.org, mingo@kernel.org, Madhavan Srinivasan Kirill A. Shutemov with faultaround patchset introduced vm_ops->map_pages() for mapping easy accessible pages around fault address in hope to reduce number of minor page faults. This patchset creates infrastructure to move the FAULT_AROUND_ORDER to arch/ using Kconfig. This will enable architecture maintainers to decide on suitable FAULT_AROUND_ORDER value based on performance data for that architecture. First patch also adds FAULT_AROUND_ORDER Kconfig element for X86. Second patch list out the performance numbers for powerpc (platform pseries) and adds FAULT_AROUND_ORDER Kconfig element for powerpc. V2 Changes: Created Kconfig parameter for FAULT_AROUND_ORDER Added check in do_read_fault to handle FAULT_AROUND_ORDER value of 0 Made changes in commit messages. Madhavan Srinivasan (2): mm: move FAULT_AROUND_ORDER to arch/ mm: add FAULT_AROUND_ORDER Kconfig paramater for powerpc arch/powerpc/platforms/pseries/Kconfig | 5 +++++ arch/x86/Kconfig | 4 ++++ include/linux/mm.h | 9 +++++++++ mm/memory.c | 12 +++++------- 4 files changed, 23 insertions(+), 7 deletions(-) -- 1.7.10.4 -- 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