From owner-freebsd-stable@FreeBSD.ORG Sat Jan 12 03:31:51 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5DDC316A468 for ; Sat, 12 Jan 2008 03:31:51 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail08.syd.optusnet.com.au (mail08.syd.optusnet.com.au [211.29.132.189]) by mx1.freebsd.org (Postfix) with ESMTP id F40C013C457 for ; Sat, 12 Jan 2008 03:31:50 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c220-239-20-82.belrs4.nsw.optusnet.com.au [220.239.20.82]) by mail08.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id m0C3VmuO032625 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 12 Jan 2008 14:31:48 +1100 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.2/8.14.1) with ESMTP id m0C3Vlhu010453; Sat, 12 Jan 2008 14:31:47 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.2/8.14.2/Submit) id m0C3VlaO010452; Sat, 12 Jan 2008 14:31:47 +1100 (EST) (envelope-from peter) Date: Sat, 12 Jan 2008 14:31:47 +1100 From: Peter Jeremy To: Kris Kennaway Message-ID: <20080112033147.GX60060@server.vk2pj.dyndns.org> References: <20071203054207.GA1153@aleph.niw.com.au> <4787AAF4.1020905@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="DIOMP1UsTsWJauNi" Content-Disposition: inline In-Reply-To: <4787AAF4.1020905@FreeBSD.org> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.17 (2007-11-01) Cc: freebsd-stable@freebsd.org Subject: Re: Swapping caused by very large (regular) file size X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Jan 2008 03:31:51 -0000 --DIOMP1UsTsWJauNi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 11, 2008 at 06:44:20PM +0100, Kris Kennaway wrote: >Ian West wrote: >> dd if=3D/dev/zero bs=3D32768 of=3Djunkfile count=3D100000 seems to do it= quite >> reliably on all the boxes I have tested ? > >I am unable to reproduce this on 7.0. I can't reproduce it on 6.3-PRERELEASE/amd64 with 1GB RAM. vmstat -s;dd if=3D/dev/zero bs=3D32768 of=3Djunkfile count=3D100000;vmstat = -s shows the following changes: 2 swap pager pageins 2 swap pager pages paged in 4 swap pager pageouts 5 swap pager pages paged out 24 vnode pager pageins 78 vnode pager pages paged in 0 vnode pager pageouts 0 vnode pager pages paged out --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --DIOMP1UsTsWJauNi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHiDSj/opHv/APuIcRAiFSAJ9i1p2DDRn2pynEc5YtfV5481mpYQCgwCDp g7ACOpNhgL9xkukNT5PnMVs= =O0ZS -----END PGP SIGNATURE----- --DIOMP1UsTsWJauNi--