From owner-freebsd-current@FreeBSD.ORG Sun Jan 8 22:33:54 2012 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8BAB5106564A for ; Sun, 8 Jan 2012 22:33:54 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 04B818FC0A for ; Sun, 8 Jan 2012 22:33:53 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q08MXoDU002963 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 9 Jan 2012 00:33:50 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q08MXo6C048077; Mon, 9 Jan 2012 00:33:50 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q08MXoEp048076; Mon, 9 Jan 2012 00:33:50 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Mon, 9 Jan 2012 00:33:50 +0200 From: Kostik Belousov To: Poul-Henning Kamp Message-ID: <20120108223350.GO31224@deviant.kiev.zoral.com.ua> References: <20120108222720.GN31224@deviant.kiev.zoral.com.ua> <8401.1326061866@critter.freebsd.dk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="6nIn9DQvaie41cmo" Content-Disposition: inline In-Reply-To: <8401.1326061866@critter.freebsd.dk> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-3.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: current@freebsd.org Subject: Re: CD9660/md(4)/UFS22 silly behaviour X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Jan 2012 22:33:54 -0000 --6nIn9DQvaie41cmo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jan 08, 2012 at 10:31:06PM +0000, Poul-Henning Kamp wrote: > In message <20120108222720.GN31224@deviant.kiev.zoral.com.ua>, Kostik Bel= ousov=20 > writes: >=20 > >What is the access patern ? Is it random access, or sequential read > >(from the cd9660 POV) ? >=20 > Random access to files in the CD9660 filesystem, which stores files > in sequential 2K blocks. Then it is reasonable. UFS reads full blocks. If you want/plan to use UFS volume for small reads exclusively, you can newfs it with much smaller block size, e.g. 8KB or even 4KB. --6nIn9DQvaie41cmo Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk8KGc4ACgkQC3+MBN1Mb4izNgCg5gcydbxaxaEOTcE5GlnCEUjY nfUAn23y4TBbh9taPxF2wdk82U2009qF =oGrM -----END PGP SIGNATURE----- --6nIn9DQvaie41cmo--