From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261536AbVFBABD (ORCPT ); Wed, 1 Jun 2005 20:01:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261532AbVFAX75 (ORCPT ); Wed, 1 Jun 2005 19:59:57 -0400 Received: from mail.tmr.com ([64.65.253.246]:902 "EHLO gaimboi.tmr.com") by vger.kernel.org with ESMTP id S261499AbVFAX5y (ORCPT ); Wed, 1 Jun 2005 19:57:54 -0400 Message-ID: <429E4B7C.9080003@tmr.com> Date: Wed, 01 Jun 2005 19:57:48 -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: cutaway@bellsouth.net CC: William Lee Irwin III , 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> <429E0843.5060505@tmr.com> <20050601192934.GP20782@holomorphy.com> <429E10B9.601@tmr.com> <002501c566f7$7ed2b2e0$2800000a@pc365dualp2> In-Reply-To: <002501c566f7$7ed2b2e0$2800000a@pc365dualp2> 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 cutaway@bellsouth.net wrote: >----- Original Message ----- >From: "Bill Davidsen" >To: "William Lee Irwin III" >Cc: >Sent: Wednesday, June 01, 2005 15:47 >Subject: Re: Swap maximum size documented ? > > > > >>>>Does this apply to mmap as well? I have an application which currently >>>>uses 9TB of data.... >>>> >>>> > >With this much data, you might consider investigating its compressability. >If it turned out to be highly compressable, algorithmic changes in how the >data is handled might considerably lighten the load on MM and disk >subsystems. Its almost always cheaper to compress/decompress cached data in >memory than hit physical media. > The majority of the records are compressed as of about a decade ago. -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979