From owner-freebsd-current@FreeBSD.ORG Wed Sep 8 10:28:00 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8F7BC16A4CE for ; Wed, 8 Sep 2004 10:28:00 +0000 (GMT) Received: from mail.efacilitas.de (efacilitas.de [213.133.110.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2BF5643D45 for ; Wed, 8 Sep 2004 10:28:00 +0000 (GMT) (envelope-from bkoenig@cs.tu-berlin.de) Received: from hoppel.local (port-212-202-38-171.dynamic.qsc.de [212.202.38.171]) by mail.efacilitas.de (Postfix) with ESMTP id 400B6123DBF for ; Wed, 8 Sep 2004 12:26:59 +0200 (CEST) Received: from alpha (unknown [192.168.1.2]) by hoppel.local (Postfix) with ESMTP id 6B6A862D7 for ; Wed, 8 Sep 2004 12:27:53 +0200 (CEST) From: "Bjoern Koenig" To: Date: Wed, 8 Sep 2004 12:29:03 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook, Build 11.0.6353 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 thread-index: AcSVjpvEmH3KIdvUT3GDlNez/jKiTA== Message-Id: <20040908102753.6B6A862D7@hoppel.local> X-Mailman-Approved-At: Wed, 08 Sep 2004 11:41:53 +0000 Subject: poor ATA disk speed with ICH2 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Wed, 08 Sep 2004 10:28:00 -0000 Hello, first time I installed a beta of FreeBSD 5.3 I noticed very poor disk = speed. I built a kernel without this whole debugging stuff; but it remains bad. = I supposed that this issue depends on further debugging features which I didn't know. So I waited until UPDATING told that debugging options are removed from kernel and userland. Now I built a new kernel again and the disk speed is still unacceptable. Is there any further debugging option? Some facts: FreeBSD 5.3-BETA3 without any debugging: per char write: 13.78 MB/s (32.7% CPU usage) block write: 13.97 MB/s (12.8%) per char read: 22.31 MB/s (45.2%) block read: 37.44 MB/s (14.8%) FreeBSD 4.10-STABLE: per char write: 37.29 MB/s (75.7%) block write: 36.91 MB/s (28.7%) per char read: 38.53 MB/s (80.4%) block read: 37.45 MB/s (10.9%) (tested with bonnie, atacontrol shows UDMA100 both) Controller: Intel 82801BA (ICH2) Hard disk: Seagate ST380021A Best Regards Bj=F6rn K=F6nig