From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 27 Jun 2001 12:55:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 27 Jun 2001 12:54:59 -0400 Received: from router-100M.swansea.linux.org.uk ([194.168.151.17]:38660 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Wed, 27 Jun 2001 12:54:51 -0400 Subject: Re: 2.2.x series and mm To: adam@eax.com (Adam) Date: Wed, 27 Jun 2001 17:52:01 +0100 (BST) Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), linux-kernel@vger.kernel.org In-Reply-To: from "Adam" at Jun 27, 2001 11:39:27 AM X-Mailer: ELM [version 2.5 PL3] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > > b) Make the processes smaller (eg switch to thttpd from www.acme.com) > > c) Speed up the I/O throughput relative to CPU speed > > - eg the 2.2 IDE UDMA patches > > can you elaborate on the "c" point" perhaps I could try it together with > 2.2.20pre6 until I can do a). > > about b) would it really help? AFACT the issue here is the buffers in > memory gets filled and cause other stuff to get swapped out., and that > would happen no matter what kind of web server I use.. It depends if it takes the working set down (you dont care about the total amount of data but the amount regularly being used) - thttpd uses a _lot_ less memory for the webserver itself so can help As to c) - 2.4.x and with patches 2.2.x will do UDMA66/UDMA100 I/O on modern disks and that takes the CPU usage down (so you do more work while the disk is copying stuff) and might well be getting data on/off disk ten times as fast