From owner-freebsd-smp Wed Feb 20 1:55:49 2002 Delivered-To: freebsd-smp@freebsd.org Received: from mass.dis.org (dhcp45-21.dis.org [216.240.45.21]) by hub.freebsd.org (Postfix) with ESMTP id 1D45237B405 for ; Wed, 20 Feb 2002 01:55:46 -0800 (PST) Received: from mass.dis.org (localhost [127.0.0.1]) by mass.dis.org (8.11.6/8.11.6) with ESMTP id g1K9tN801098; Wed, 20 Feb 2002 01:55:23 -0800 (PST) (envelope-from msmith@mass.dis.org) Message-Id: <200202200955.g1K9tN801098@mass.dis.org> X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: "Dreamtime.net Inc." Cc: "Terry Lambert" , "Vincent Janelle" , freebsd-smp@FreeBSD.ORG Subject: Re: Systat and Ram In-reply-to: Your message of "Wed, 20 Feb 2002 01:46:43 PST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 20 Feb 2002 01:55:23 -0800 From: Michael Smith Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > Actually, we need to run anywhere from 30 to 300 httpd processes, 20-25 megs > each. We want to know how can we decide if we need more RAM based on > 'systat' output. A calculator will tell you that you can't run 300 processes at 20MB each on a machine limited to 4GB. Watch the output of 'vmstat -s' and see whether there is activity on the swap pager (swapping means you don't have enough RAM). You can see the per-interval increments to the in/out values in the top right of the 'systat -vm' display. -- To announce that there must be no criticism of the president, or that we are to stand by the president, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public. - Theodore Roosevelt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message