From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 22B99DDE1F for ; Fri, 19 Oct 2007 23:24:22 +1000 (EST) In-Reply-To: <18199.60025.563689.10810@cargo.ozlabs.ibm.com> References: <200710181108.19413.yur@emcraft.com> <18199.60025.563689.10810@cargo.ozlabs.ibm.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: From: Kumar Gala Subject: Re: [PATCH] ppc44x: support for 256K PAGE_SIZE Date: Fri, 19 Oct 2007 08:24:38 -0500 To: Paul Mackerras Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Oct 18, 2007, at 6:21 PM, Paul Mackerras wrote: > 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? I was wondering about this as well? Isn't this technically in violation of the ABI? - k