From owner-freebsd-fs@FreeBSD.ORG Thu Aug 12 20:56:29 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 725CA10656A4 for ; Thu, 12 Aug 2010 20:56:29 +0000 (UTC) (envelope-from peterjeremy@acm.org) Received: from mail16.syd.optusnet.com.au (mail16.syd.optusnet.com.au [211.29.132.197]) by mx1.freebsd.org (Postfix) with ESMTP id 007148FC19 for ; Thu, 12 Aug 2010 20:56:28 +0000 (UTC) Received: from server.vk2pj.dyndns.org (c220-239-116-103.belrs4.nsw.optusnet.com.au [220.239.116.103]) by mail16.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id o7CKuPqD006065 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 13 Aug 2010 06:56:27 +1000 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.4/8.14.4) with ESMTP id o7CKuPZx079582 for ; Fri, 13 Aug 2010 06:56:25 +1000 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.4/8.14.4/Submit) id o7CKuPij079581 for freebsd-fs@freebsd.org; Fri, 13 Aug 2010 06:56:25 +1000 (EST) (envelope-from peter) Date: Fri, 13 Aug 2010 06:56:25 +1000 From: Peter Jeremy To: freebsd-fs@freebsd.org Message-ID: <20100812205625.GA79515@server.vk2pj.dyndns.org> References: <20100810214418.GA28288@tolstoy.tols.org> <20100811014919.GA52992@icarus.home.lan> <20100811192537.GA44635@tolstoy.tols.org> <20100811214302.GB44635@tolstoy.tols.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IS0zKkzwUGydFO0o" Content-Disposition: inline In-Reply-To: <20100811214302.GB44635@tolstoy.tols.org> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.20 (2009-06-14) Subject: Re: zfs arc - just take it all and be good to me X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Aug 2010 20:56:29 -0000 --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2010-Aug-11 21:43:02 +0000, Marco van Tol wrote: >On Wed, Aug 11, 2010 at 01:08:51PM -0700, Artem Belevich wrote: >> There's a hack floating around that attempts to force kernel into >> freeing up memory from inactive/cache lists before draining ARC. It >> does help a bit with this issue, but it's still a hack. > >That makes sense Artem, thanks. I think you mean the posts with the >perl one-liner I used in my tests as well. (perl variable assignment of >1.5GB in the posts their version) I suspect Artem is referring to his patch at http://pastebin.com/ZCkzkWcs which I have tweaked somewhat (see the last patch in=20 http://www.freebsd.org/cgi/query-pr.cgi?pr=3D146410 ). Whilst these patches _are_ hacks, they seem to do a good job of making ZFS and UFS play together. --=20 Peter Jeremy --IS0zKkzwUGydFO0o Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iEYEARECAAYFAkxkX/kACgkQ/opHv/APuId4kACgmCipE6aOmqERf0qO7fYAdDA2 Nb8AnRwm+ArRfOgCmYqYfprQD3ggFblc =o5nq -----END PGP SIGNATURE----- --IS0zKkzwUGydFO0o--