From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp04.in.ibm.com (e28smtp04.in.ibm.com [122.248.162.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id B607D1400C6 for ; Fri, 4 Apr 2014 17:27:28 +1100 (EST) Received: from /spool/local by e28smtp04.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 d28dlp01.in.ibm.com (Postfix) with ESMTP id 46139E004B for ; Fri, 4 Apr 2014 12:01:29 +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 s346REpm3277144 for ; Fri, 4 Apr 2014 11:57:14 +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 s346RJFL027403 for ; Fri, 4 Apr 2014 11:57:21 +0530 From: Madhavan Srinivasan To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, x86@kernel.org 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> Cc: riel@redhat.com, ak@linux.intel.com, peterz@infradead.org, rusty@rustcorp.com.au, Madhavan Srinivasan , paulus@samba.org, mgorman@suse.de, akpm@linux-foundation.org, mingo@kernel.org, kirill.shutemov@linux.intel.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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