From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <18199.60025.563689.10810@cargo.ozlabs.ibm.com> Date: Fri, 19 Oct 2007 09:21:29 +1000 From: Paul Mackerras To: Yuri Tikhonov Subject: Re: [PATCH] ppc44x: support for 256K PAGE_SIZE In-Reply-To: <200710181108.19413.yur@emcraft.com> References: <200710181108.19413.yur@emcraft.com> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Yuri Tikhonov writes: > The following patch adds support for 256KB PAGE_SIZE on ppc44x-based boards. > The applications to be run on the kernel with 256KB PAGE_SIZE have to be > built using the modified version of binutils, where the MAXPAGESIZE > definition is set to 0x40000 (as opposite to standard 0x10000). Have you measured the performance using a 64kB page size? If so, how does it compare with the 256kB page size? The 64kB page size has the attraction that no binutils changes are required. Paul.