From owner-freebsd-hackers Thu Jul 20 13:35:29 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.11/8.6.6) id NAA22022 for hackers-outgoing; Thu, 20 Jul 1995 13:35:29 -0700 Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241]) by freefall.cdrom.com (8.6.11/8.6.6) with ESMTP id NAA22015 for ; Thu, 20 Jul 1995 13:35:25 -0700 Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id NAA09749; Thu, 20 Jul 1995 13:35:17 -0700 From: "Rodney W. Grimes" Message-Id: <199507202035.NAA09749@gndrsh.aac.dev.com> Subject: Re: ramspeed results - ?? To: rpt@miles.sso.loral.com (Richard Toren) Date: Thu, 20 Jul 1995 13:35:17 -0700 (PDT) Cc: hackers@freebsd.org In-Reply-To: from "Richard Toren" at Jul 20, 95 01:50:12 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1317 Sender: hackers-owner@freebsd.org Precedence: bulk > > I picked up ramspeed from this list a week ago or so. Ran it last night. > 1> Don't know how long it took, but it was over 90 minutes. :-(. > 2> iT's 486DX66, BT SCSI2 VLB controller, 8 MB memory ^^^^^^^^^^^ That code as supplied requires at least 8MB of totally free and unused memory or you machine pages faults and swaps to death. This means you need a machine with at least 12MB and usually more like 16MB to run it as supplied. > > Results - > 49005fb0 44.464 uS/op 2.25e+04 op/sec 0.086 mb/sec > 8938c0df 44.845 uS/op 2.23e+04 op/sec 0.085 mb/sec > > What is this telling me. How does it compare? Is the 3rd a disk swap rate > or something? It is meaningless given the configuration. All 3 result values are the same result just expressed in 3 different ways, they all have very simply mathmatical relations and given any 1 of them I can calculate the other 2. Change: #define TESTSIZE (8192*1024) to something like #define TESTSIZE (4096*1024) And boot your system single user to run the test to maximize the free memory pool and to make sure that no vm page fragmentation has happened. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD