From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261156AbVFAS7L (ORCPT ); Wed, 1 Jun 2005 14:59:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261242AbVFASzj (ORCPT ); Wed, 1 Jun 2005 14:55:39 -0400 Received: from mail.tmr.com ([64.65.253.246]:45445 "EHLO gaimboi.tmr.com") by vger.kernel.org with ESMTP id S261250AbVFASyY (ORCPT ); Wed, 1 Jun 2005 14:54:24 -0400 Message-ID: <429E0843.5060505@tmr.com> Date: Wed, 01 Jun 2005 15:10:59 -0400 From: Bill Davidsen Organization: TMR Associates Inc, Schenectady NY User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040616 X-Accept-Language: en-us, en MIME-Version: 1.0 To: William Lee Irwin III CC: linux-kernel@vger.kernel.org Subject: Re: Swap maximum size documented ? References: <200506011225.j51CPDV23243@lastovo.hermes.si> <20050601124025.GZ422@unthought.net> <1117630718.6271.31.camel@laptopd505.fenrus.org> <20050601134022.GM20782@holomorphy.com> In-Reply-To: <20050601134022.GM20782@holomorphy.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William Lee Irwin III wrote: > On Wed, Jun 01, 2005 at 01:02:13PM +0000, David Bala??ic wrote: > >>OK, so can anyone tell the actual, current limits ? > > > Without CONFIG_HIGHMEM64G=y you have: > 32 swapfiles, max swapfile size of 64GB. > > With CONFIG_HIGHMEM64G=y you have: > 32 swapfiles, max swapfile size of 512GB. Does this apply to mmap as well? I have an application which currently uses 9TB of data, and one thought to boost performance was to mmap the data. Unfortunately, I know 16TB isn't going to be enough for more than a few more years :-( -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979