From owner-freebsd-geom@FreeBSD.ORG Thu Mar 29 15:53:22 2007 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7166A16A40E for ; Thu, 29 Mar 2007 15:53:22 +0000 (UTC) (envelope-from gcubfg-freebsd-geom@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 0082913C489 for ; Thu, 29 Mar 2007 15:53:21 +0000 (UTC) (envelope-from gcubfg-freebsd-geom@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1HWww7-0008AQ-Vf for freebsd-geom@freebsd.org; Thu, 29 Mar 2007 17:53:16 +0200 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 29 Mar 2007 17:53:15 +0200 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 29 Mar 2007 17:53:15 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-geom@freebsd.org From: Ivan Voras Date: Thu, 29 Mar 2007 17:52:40 +0200 Lines: 36 Message-ID: References: <003401c7712a$f71ebb60$6502a8c0@peteruj> <005c01c77134$28e0fce0$6502a8c0@peteruj> <86zm5xph7o.fsf@dwp.des.no> <005301c771e4$bb0a3900$6502a8c0@peteruj> <86lkhg5oz5.fsf@dwp.des.no> <007c01c771fe$805b2fc0$6502a8c0@peteruj> <86odmc42mh.fsf@dwp.des.no> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA8F5CA0ABA6B1DA375705187" X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 1.5.0.10 (X11/20060911) In-Reply-To: <86odmc42mh.fsf@dwp.des.no> X-Enigmail-Version: 0.94.2.0 Sender: news Subject: Re: raid3 is slow X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Mar 2007 15:53:22 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA8F5CA0ABA6B1DA375705187 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Dag-Erling Sm=C3=B8rgrav wrote: > You don't seem to understand what the load averages mean. They are > the average number of runnable threads in the scheduler queue over the > last one, five and fifteen seconds. Certain workloads will drive up > the load averages without consuming all available CPU time. This is > particularly the case for workloads where small chunks of data (e.g. > RAID3 stripes) are passed around between multiple threads. But, in his case the threads DO seem to consume much more CPU time than=20 they should - especially the g_down thread. In this case, load avg ( as=20 an approximation of real system load) is useful, and he's not concerned=20 without cause. --------------enigA8F5CA0ABA6B1DA375705187 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFGC+DPldnAQVacBcgRAvxgAKDZGc66iiLpsjuTVmBGWaWllwf8lgCg0J2Z o/1l9Lm/s5HfOSATilgR+mc= =tXRE -----END PGP SIGNATURE----- --------------enigA8F5CA0ABA6B1DA375705187--