From owner-freebsd-current@FreeBSD.ORG Wed Nov 10 21:36:49 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 57C6616A4CE; Wed, 10 Nov 2004 21:36:49 +0000 (GMT) Received: from creme-brulee.marcuscom.com (creme-brulee.marcuscom.com [24.172.16.118]) by mx1.FreeBSD.org (Postfix) with ESMTP id DFBE943D49; Wed, 10 Nov 2004 21:36:48 +0000 (GMT) (envelope-from marcus@FreeBSD.org) Received: from shumai.marcuscom.com (shumai.marcuscom.com [192.168.1.4]) iAALbL4B042512; Wed, 10 Nov 2004 16:37:21 -0500 (EST) (envelope-from marcus@FreeBSD.org) From: Joe Marcus Clarke To: Robert Watson In-Reply-To: References: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-aDueMSkkOG5wXnKLei/F" Organization: FreeBSD, Inc. Date: Wed, 10 Nov 2004 16:36:42 -0500 Message-Id: <1100122602.36242.25.camel@shumai.marcuscom.com> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 FreeBSD GNOME Team Port cc: current@FreeBSD.org Subject: Re: 6-CURRENT unbelievably slow? 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, 10 Nov 2004 21:36:49 -0000 --=-aDueMSkkOG5wXnKLei/F Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2004-11-10 at 21:28 +0000, Robert Watson wrote: > On Wed, 10 Nov 2004, Joe Marcus Clarke wrote: >=20 > > [NON-Text Body part not included] >=20 > If you diff the dmesg "before" and "after", are there any signs of > substantial interrupt or device configuration changes? Paying particular > attention, perhaps, to assignment of interrupt numbers, etc. Do settings > like ACPI make a difference? I was just going to send this: Sorry to follow up to myself, but I found another piece of information. Even when the system is completely idle, top reports this: CPU states: 0.0% user, 0.0% nice, 1.6% system, 85.2% interrupt, 13.2% idle My interrupt usage never drops below 80%. systat reports that all of this (161756 interrupts per second) is taken up by ata0 on IRQ 14. I don't have any harddrives attached to the internal ATA controller, and disabling this in the BIOS has no effect. I noticed the interrupt storm detection line in dmesg. In previous builds, this worked, but it doesn't seem to be taking effect anymore. NOTE: Disabling ACPI _does_ correct the problem. Any idea what could have changed such that the interrupt storm throttler no longer works? Joe >=20 > Robert N M Watson FreeBSD Core Team, TrustedBSD Projects > robert@fledge.watson.org Principal Research Scientist, McAfee Resear= ch >=20 >=20 >=20 --=20 Joe Marcus Clarke FreeBSD GNOME Team :: gnome@FreeBSD.org FreeNode / #freebsd-gnome http://www.FreeBSD.org/gnome --=-aDueMSkkOG5wXnKLei/F Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBkonqb2iPiv4Uz4cRAgs3AJ9Jmc/QogI8mSvmew8AHjYpNN7hxACfWqD8 /aGLMuBrwJsnUYabmbiScFA= =XwXV -----END PGP SIGNATURE----- --=-aDueMSkkOG5wXnKLei/F--