Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 23 Feb 2003 09:02:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 23 Feb 2003 09:02:53 -0500 Received: from node-d-1ea6.a2000.nl ([62.195.30.166]:11247 "EHLO laptop.fenrus.com") by vger.kernel.org with ESMTP id ; Sun, 23 Feb 2003 09:02:52 -0500 Subject: Re: SMP and CPU1 not showing interrupts in /proc/interrupts From: Arjan van de Ven To: James Harper Cc: linux-kernel In-Reply-To: <3E589799.3000105@bigpond.com> References: <3E589799.3000105@bigpond.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-eqalYVN55dQIg0OA/h5m" Organization: Message-Id: <1046008358.1964.0.camel@laptop.fenrus.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-3) Date: 23 Feb 2003 14:52:39 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2059 Lines: 55 --=-eqalYVN55dQIg0OA/h5m Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2003-02-23 at 10:42, James Harper wrote: > somewhere between about 2.5.53 and 2.5.62 my /proc/interrupts has gone=20 > from an approximately even distribution of interrupts between CPU0 and=20 > CPU1 to grossly uneven: >=20 > CPU0 CPU1 =20 > 0: 13223321 2233217 IO-APIC-edge timer > 1: 13442 0 IO-APIC-edge i8042 > 2: 0 0 XT-PIC cascade > 3: 291874 0 IO-APIC-edge serial > 8: 3 0 IO-APIC-edge rtc > 9: 0 0 IO-APIC-edge acpi > 14: 18932 0 IO-APIC-edge ide0 > 15: 14 0 IO-APIC-edge ide1 > 16: 190607 1 IO-APIC-level eth0, nvidia > 17: 3214 0 IO-APIC-level bttv0 > 18: 14249 1 IO-APIC-level ide2 > 19: 121942 0 IO-APIC-level uhci-hcd, wlan0 > NMI: 0 0 > LOC: 15458218 15458423 > ERR: 0 > MIS: 0 >=20 > if i really hit the system hard then CPU1 will start accruing interrupts=20 > but in a mostly idle state CPU1 just sits on its bum and lets CPU0=20 > handle them all, with the exception of irq #0, for some reason. could you try the irqbalanced daemon for interrupt balancing: http://people.redhat.com/arjanv/irqbalance/irqbalance-0.05.tar.gz --=-eqalYVN55dQIg0OA/h5m Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQA+WNImxULwo51rQBIRAowgAJ9Sv62dyKxj0Nmzj1HDGriYwIDHdACaAnAO jFEsMjosamwZwWcNRtk0HZw= =JWu9 -----END PGP SIGNATURE----- --=-eqalYVN55dQIg0OA/h5m-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/