From owner-freebsd-hackers Thu Dec 21 00:23:51 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id AAA20942 for hackers-outgoing; Thu, 21 Dec 1995 00:23:51 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id AAA20937 for ; Thu, 21 Dec 1995 00:23:42 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id JAA02678; Thu, 21 Dec 1995 09:21:19 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id JAA08978; Thu, 21 Dec 1995 09:21:17 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.6.12/8.6.9) id JAA14210; Thu, 21 Dec 1995 09:07:43 +0100 From: J Wunsch Message-Id: <199512210807.JAA14210@uriah.heep.sax.de> Subject: Re: Need more memory? To: joe@ns.via.net (Joe McGuckin) Date: Thu, 21 Dec 1995 09:07:43 +0100 (MET) Cc: hackers@FreeBSD.ORG Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199512202125.NAA07272@ns.via.net> from "Joe McGuckin" at Dec 20, 95 01:25:31 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-hackers@FreeBSD.ORG Precedence: bulk As Joe McGuckin wrote: > > > I have a FreeBSD system used as a web server. Response has slowed down > considerable in recent weeks. It is a 100Mhz Pentium, 32M ram, 1G of disk. > > What is a good indication of when you need to add ram. If your machine has heavy paging activity. Tools like pstat, vmstat and top might be useful. (Btw.: VMSTAT(8) VMSTAT(8) NAME vmstat - report virtual memory statistics ... page Information about page faults and paging activity. These are averaged each five seconds, and given in units per second. re page reclaims (simulating reference bits) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Shouldn't this be ".if VAX", i thought we do have a reference bit?) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)