From owner-freebsd-stable Sat Mar 8 3:25:57 2003 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B51A537B405 for ; Sat, 8 Mar 2003 03:25:56 -0800 (PST) Received: from cirb503493.alcatel.com.au (c18609.belrs1.nsw.optusnet.com.au [210.49.80.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7A9BC43F3F for ; Sat, 8 Mar 2003 03:25:55 -0800 (PST) (envelope-from peterjeremy@optushome.com.au) Received: from cirb503493.alcatel.com.au (localhost.alcatel.com.au [127.0.0.1]) by cirb503493.alcatel.com.au (8.12.6/8.12.5) with ESMTP id h28BPriM000223 for ; Sat, 8 Mar 2003 22:25:53 +1100 (EST) (envelope-from jeremyp@cirb503493.alcatel.com.au) Received: (from jeremyp@localhost) by cirb503493.alcatel.com.au (8.12.6/8.12.5/Submit) id h28BPpkp000222 for freebsd-stable@freebsd.org; Sat, 8 Mar 2003 22:25:51 +1100 (EST) Date: Sat, 8 Mar 2003 22:25:51 +1100 From: Peter Jeremy To: freebsd-stable@freebsd.org Subject: High wired page count Message-ID: <20030308112551.GA202@cirb503493.alcatel.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I just happened to have a close look at the memory usage figures on various -STABLE machines and noticed that all of them are reporting vm.stats.vm.v_wire_count roughly 1/3 of total RAM. (My look was triggered by the sound of my firewall paging when I sent a query to its named). Having 1/3 of memory wired strikes me as excessive - especially since none of the machines were particularly busy or doing anything that would be mlock()ing lots of memory. It was also consistent on 4 different machines having between 20MB and 512MB RAM and running versions between 4.5-STABLE and 4.7-STABLE, so it isn't an anomoly on a single machine. "vmstat -m" doesn't suggest anything (in fact it only accounts for about 15% of the wires pages). Can anyone explain why so much RAM is wired? Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message