From owner-freebsd-stable Thu May 3 21:45: 2 2001 Delivered-To: freebsd-stable@freebsd.org Received: from zoon.lafn.org (zoon.lafn.org [206.117.18.9]) by hub.freebsd.org (Postfix) with ESMTP id 6F66337B422; Thu, 3 May 2001 21:44:59 -0700 (PDT) (envelope-from bc979@lafn.org) Received: from [10.0.1.100] (cs-wla2-p33.lafn.org [192.168.16.33] (may be forged)) by zoon.lafn.org (8.10.1/8.10.1) with ESMTP id f444inK99336; Thu, 3 May 2001 21:44:50 -0700 (PDT) Mime-Version: 1.0 X-Sender: bc979@mail.lafn.org Message-Id: In-Reply-To: <200105040254.MAA15355@lightning.itga.com.au> References: <200105040254.MAA15355@lightning.itga.com.au> Date: Thu, 3 May 2001 21:41:33 -0700 To: Gregory Bond From: Doug Hardie Subject: Re: Mem Use Cc: Mike Smith , Marius , Ramon A Hermon , freebsd-stable@FreeBSD.ORG Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 12:54 +1000 5/4/01, Gregory Bond wrote: > > Exactly. And it also slows down other disk I/O. Why doesn't it swap >> it back in and leave it? It keeps bringing it back in every couple >> seconds. I don't see any swap out activity, only lots of swapin. > >Reading files (e.g. with cat or more) and running new programs also counts as >pagein. That's one reason why pagein rates are so much higher than pageout. That does not appear to be the case in 4.3. On several systems, a cat that will run for about 5 minutes never once shows any swapin counts. Given that my systems are servers for thousands of users, I would expect to see the swapins always large. I only see them on the least used server. Thats why it has 50 MB unused. It started swapping once when named crashed and things backed up for an hour or so. Since then the load has been quite low. But there are 40 - 80K swapped in every 2 seconds. -- -- Doug To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message