From owner-freebsd-questions@FreeBSD.ORG Sun Aug 1 08:30:02 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AF5ED1065670 for ; Sun, 1 Aug 2010 08:30:02 +0000 (UTC) (envelope-from bc979@lafn.org) Received: from zool.lafn.org (zool.lafn.ORG [206.117.18.7]) by mx1.freebsd.org (Postfix) with ESMTP id 87A1B8FC17 for ; Sun, 1 Aug 2010 08:30:02 +0000 (UTC) Received: from [10.0.1.4] (pool-71-109-159-124.lsanca.dsl-w.verizon.net [71.109.159.124]) (authenticated bits=0) by zool.lafn.org (8.14.3/8.14.2) with ESMTP id o718CRpk084473 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Sun, 1 Aug 2010 01:12:28 -0700 (PDT) (envelope-from bc979@lafn.org) From: Doug Hardie Content-Type: text/plain; charset=us-ascii Message-Id: <1F2C2584-A22B-41A4-A675-126993770461@lafn.org> Date: Sun, 1 Aug 2010 01:12:27 -0700 To: freebsd-questions - Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Apple Message framework v1081) X-Mailer: Apple Mail (2.1081) X-Virus-Scanned: clamav-milter 0.95.3 at zool.lafn.org X-Virus-Status: Clean Subject: Question on Swapping X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Aug 2010 08:30:02 -0000 I have a question about what I am seeing on several servers. These are = 4 core machines with more than the needed memory. Load is never above = .5 and memory usually shows over half free. I have never seen it even = close to the limit (including buffers). Basically these are lightly = used servers. However, top often shows after a few weeks of uptime that = some of the unused gettys are swapped out. I didn't really expect this = as lack of memory is not an issue. Is there something in FreeBSD 7 and = 8 that causes a process thats idle for very log times to get swapped = out? I haven't seen anything like that in the various documentation = files, but it sure looks like thats the case.=