From owner-freebsd-current@FreeBSD.ORG Mon Oct 18 07:43:48 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 03D2C1065694 for ; Mon, 18 Oct 2010 07:43:48 +0000 (UTC) (envelope-from naylor.b.david@gmail.com) Received: from mail-gx0-f182.google.com (mail-gx0-f182.google.com [209.85.161.182]) by mx1.freebsd.org (Postfix) with ESMTP id AC4438FC19 for ; Mon, 18 Oct 2010 07:43:47 +0000 (UTC) Received: by gxk4 with SMTP id 4so219127gxk.13 for ; Mon, 18 Oct 2010 00:43:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:to:subject:date :user-agent:mime-version:content-type:content-transfer-encoding :message-id; bh=xg1w5O7ztvt+9jq8byjUD9cNY7FAc/lIHkXIzaiGTlM=; b=n8r0SQQeK69kqeqsdGySQadtFqXp2EQye/ctpRlt3DJB626YwrV/YXei2TOaW0O7bH Xdzkw5rB1/O7CUIlfXo4+STfA8pQunJ9zamJzmCssvkAzAOs+viR8SIjEdnAbmkD5o6W fVK4axCemueFnXNTRILBY/Wm3A8AQOBmgooVs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:mime-version:content-type :content-transfer-encoding:message-id; b=of6WTMNBbYf4qXolSbRE3Z4GSC5OglhshVd7uMVmdO68frfOvvOJjPYV8wil7wbsaQ NeDfqp/BJgkfZdPqyIvBDGm8LAC0KvjEouOD4kN1OZfY/fLreKeFu+o/OtVZlfgdyAPu GRc8EsgOGTrm0A5YkwbpPr3MtFonCNvj58e7k= Received: by 10.236.103.17 with SMTP id e17mr7505457yhg.89.1287387826863; Mon, 18 Oct 2010 00:43:46 -0700 (PDT) Received: from dragon.dg (41-132-93-155.dsl.mweb.co.za [41.132.93.155]) by mx.google.com with ESMTPS id m45sm2596052yha.11.2010.10.18.00.43.44 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 18 Oct 2010 00:43:46 -0700 (PDT) From: David Naylor To: freebsd-current@freebsd.org Date: Mon, 18 Oct 2010 09:43:28 +0200 User-Agent: KMail/1.13.5 (FreeBSD/9.0-CURRENT; KDE/4.5.1; amd64; ; ) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1317096.xfUj6sXRYQ"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201010180943.37042.naylor.b.david@gmail.com> Subject: geom_sched usage 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: Mon, 18 Oct 2010 07:43:48 -0000 --nextPart1317096.xfUj6sXRYQ Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, I've used geom_sched to some success. Normally I do not notice anything bu= t=20 today I was copying big files over a gigabit ethernet and my laptop was not= =20 very responsive. I loaded gsched and the responsiveness improved (although= =20 still rather bad for anything requiring something from the HDD). =20 Thank you for all this work :-) Some questions I have: - with a gmirror should the gsched be attached to the underlying devices (= aka=20 /dev/ad?) or to the mirror device (aka /dev/mirror/?)? - is there anyway to automatically attach gsched to a device on startup (i= =2Ee.=20 in rc.conf)? - is there a way to prioritise random IO (vs sequential reads from big=20 files)? - gsched_as does not appear to be installed. =20 Regards, David --nextPart1317096.xfUj6sXRYQ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEABECAAYFAky7+qgACgkQUaaFgP9pFrL59wCfaj2C5mVkmjEO0Auagkk0vJUq iiQAoId1UUgE38k8pLqBwGfLzjEpTNKs =69dE -----END PGP SIGNATURE----- --nextPart1317096.xfUj6sXRYQ--