Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264612AbTIDCuv (ORCPT ); Wed, 3 Sep 2003 22:50:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264616AbTIDCuu (ORCPT ); Wed, 3 Sep 2003 22:50:50 -0400 Received: from miranda.zianet.com ([216.234.192.169]:64262 "HELO miranda.zianet.com") by vger.kernel.org with SMTP id S264612AbTIDCt6 (ORCPT ); Wed, 3 Sep 2003 22:49:58 -0400 Subject: Re: Scaling noise From: Steven Cole To: "Martin J. Bligh" Cc: William Lee Irwin III , Larry McVoy , Alan Cox , "Brown, Len" , Giuliano Pochini , Larry McVoy , Linux Kernel Mailing List In-Reply-To: <7420000.1062642672@[10.10.2.4]> References: <20030903180547.GD5769@work.bitmover.com> <20030903181550.GR4306@holomorphy.com> <1062613931.19982.26.camel@dhcp23.swansea.linux.org.uk> <20030903194658.GC1715@holomorphy.com> <105370000.1062622139@flay> <20030903212119.GX4306@holomorphy.com> <115070000.1062624541@flay> <20030903215135.GY4306@holomorphy.com> <116940000.1062625566@flay> <20030904010653.GD5227@work.bitmover.com> <20030904013253.GB4306@holomorphy.com> <7420000.1062642672@[10.10.2.4]> Content-Type: text/plain Organization: Message-Id: <1062643711.3477.90.camel@spc> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.4-1.1mdk Date: 03 Sep 2003 20:48:32 -0600 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1193 Lines: 26 On Wed, 2003-09-03 at 20:31, Martin J. Bligh wrote: > I don't think the initial development baby-steps are *too* bad, and don't > even have to be done on a NUMA box - a pair of PCs connected by 100baseT > would work. Personally, I think the first step is to do task migration - > migrate a process without it realising from one linux instance to another. > Start without the more complex bits like shared filehandles, etc. Something > that just writes 1,2,3,4 to a file. It could even just use shared root NFS, > I think that works already. > > Basically swap it out on one node, and in on another, though obviously > there's more state to take across than just RAM. I was talking to Tridge > the other day, and he said someone had hacked up something in userspace > which kinda worked ... I'll get some details. > This project may be applicable: http://bproc.sourceforge.net/ BProc is used here: http://www.lanl.gov/projects/pink/ Steven - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/