From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 10 May 2002 20:07:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 10 May 2002 20:07:38 -0400 Received: from deimos.hpl.hp.com ([192.6.19.190]:40426 "EHLO deimos.hpl.hp.com") by vger.kernel.org with ESMTP id ; Fri, 10 May 2002 20:07:37 -0400 From: David Mosberger MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15580.24766.424170.333718@napali.hpl.hp.com> Date: Fri, 10 May 2002 17:07:26 -0700 To: Andreas Dilger Cc: Peter Chubb , Jeremy Andrews , linux-kernel@vger.kernel.org Subject: Re: [PATCH] remove 2TB block device limit In-Reply-To: <20020510234623.GC12975@turbolinux.com> X-Mailer: VM 7.03 under Emacs 21.1.1 Reply-To: davidm@hpl.hp.com X-URL: http://www.hpl.hp.com/personal/David_Mosberger/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> On Fri, 10 May 2002 17:46:23 -0600, Andreas Dilger said: Andreas> For 64-bit systems like Alpha, it is relatively easy to use Andreas> 8kB blocks for ext3. It has been discouraged because such Andreas> a filesystem is non-portable to other (smaller page-sized) Andreas> filesystems. Maybe this rationale should be re-examined - Andreas> I could probably whip up a configure option for e2fsprogs Andreas> to allow 8kB blocks in a few hours. If you do this, please consider allowing a block size up to 64KB. The ia64 kernel offers a choice of 4, 8, 16, and 64KB page size. Andreas> Does x86-64 and/or ia64 actually _use_ > 4kB page sizes? ia64 linux normally uses > 4KB. The recommended page size at the moment is 16KB. I didn't think 64KB would become realistic for quite some time, but performance is surprisingly good, even on today's systems. --david