From owner-freebsd-current Fri Mar 3 21:45:15 1995 Return-Path: current-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id VAA16183 for current-outgoing; Fri, 3 Mar 1995 21:45:15 -0800 Received: from Root.COM (implode.Root.COM [198.145.90.1]) by freefall.cdrom.com (8.6.9/8.6.6) with ESMTP id VAA16176 for ; Fri, 3 Mar 1995 21:45:10 -0800 Received: from corbin.Root.COM (corbin.Root.COM [198.145.90.18]) by Root.COM (8.6.8/8.6.5) with ESMTP id VAA28186; Fri, 3 Mar 1995 21:45:00 -0800 Received: from localhost (localhost [127.0.0.1]) by corbin.Root.COM (8.6.9/8.6.5) with SMTP id VAA00274; Fri, 3 Mar 1995 21:44:59 -0800 Message-Id: <199503040544.VAA00274@corbin.Root.COM> X-Authentication-Warning: corbin.Root.COM: Host localhost didn't use HELO protocol To: "Russell L. Carter" cc: current@FreeBSD.org Subject: Re: "feel" of recent systems In-reply-to: Your message of "Fri, 03 Mar 95 21:24:06 PST." <199503040524.VAA14072@geli.clusternet> From: David Greenman Reply-To: davidg@Root.COM Date: Fri, 03 Mar 1995 21:44:58 -0800 Sender: current-owner@FreeBSD.org Precedence: bulk >I wonder if anybody has noticed a tad bit of hesitancy in the system >since a few days ago. It has revived a little nostalgia in >me, since the system I've always thought of as being the very best >at running heavy loads: CRI Cray Y-MPs running UNICOS 6.1+, had >the same feel; could anybody improving the system comment >on their philosophy for doing these changes? Does the overall >system throughput improve? There are multiple bugs in several parts of the system that could be causing your specific problem. The NCR driver has been changing, for instance, and this might have something to do with it. ...and of course there are the problems with buffer management/directory caching that we still haven't found an optimal solution for. We always strive to strike the best balance between overall performance and responsiveness...but -current isn't production code, and we make no representations that it is. If you could be more specific about certain kinds of operations that appear slower, this would help us find the problems (I saw your Bonnie results...these really aren't very useful by themselves, however, as they are affected too much by local disk fragmentation). -DG