From owner-freebsd-stable@FreeBSD.ORG Tue Jan 19 03:34:05 2010 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 D58F3106566C for ; Tue, 19 Jan 2010 03:34:05 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id 5473C8FC15 for ; Tue, 19 Jan 2010 03:34:04 +0000 (UTC) Received: from inchoate.gsoft.com.au ([203.31.81.30]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id o0J3Y3nw098594 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 19 Jan 2010 14:04:03 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: freebsd-stable@freebsd.org Date: Tue, 19 Jan 2010 14:03:59 +1030 User-Agent: KMail/1.9.10 References: <4B54C100.9080906@mail.zedat.fu-berlin.de> <201001191250.23625.doconnor@gsoft.com.au> <7346c5c61001181841j3653a7c3m32bc033c8c146a92@mail.gmail.com> In-Reply-To: <7346c5c61001181841j3653a7c3m32bc033c8c146a92@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart5497663.naMDPYmIWM"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201001191404.01618.doconnor@gsoft.com.au> X-Spam-Score: -3.635 () ALL_TRUSTED,AWL,BAYES_00 X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 Cc: "O. Hartmann" , Garrett Moore Subject: Re: immense delayed write to file system (ZFS and UFS2), performance issues 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: Tue, 19 Jan 2010 03:34:05 -0000 --nextPart5497663.naMDPYmIWM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Tue, 19 Jan 2010, Garrett Moore wrote: > The drives being discussed in my related thread (regarding poor > performance) are all WD Green drives. I have used wdidle3 to set all > of my drive timeouts to 5 minutes. I'll see what sort of difference > this makes for performance. > > Even if it makes no difference to performance, thank you for pointing > it out -- my drives have less than 2,000 hours on them and were all > over 90,000 load cycles due to this moronic factory setting. Since > changing the timeout, they haven't parked (which is what I would > expect). Mine had 65k or so, except one which only had 66.. Very odd! =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart5497663.naMDPYmIWM Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBLVSgp5ZPcIHs/zowRAif1AKCh8Xfac4PnR/0H6EmKKOgoWsEtVwCfXZnC F+RC7onbrbEgilf3H245cqs= =eGZD -----END PGP SIGNATURE----- --nextPart5497663.naMDPYmIWM--