Re: 2.5.67-mm4 & IRQ balancing

Arjan van de Ven (arjanv@redhat.com)
22 Apr 2003 12:32:13 +0200


This is a MIME-formatted message. If you see this text it means that your
E-mail software does not support MIME-formatted messages.

--=_courier-12482-1051007733-0001-2
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable

>=20
> Booted with "noirqbalance" & started irqbalance:
>=20
> $ cat /proc/interrupts
> CPU0 CPU1 =20
> 0: 73897 247288143 IO-APIC-edge timer
> 1: 38421 56 IO-APIC-edge i8042
> 2: 0 0 XT-PIC cascade
> 3: 177 0 IO-APIC-edge serial
> 8: 107607 0 IO-APIC-edge rtc
> 12: 3 0 IO-APIC-edge i8042, i8042, i8042, i8042
> 15: 32 118 IO-APIC-edge ide1
> 18: 12602 1159 IO-APIC-level EMU10K1
> 19: 454172 15987 IO-APIC-level uhci-hcd
> 20: 494005 0 IO-APIC-level eth0
> 22: 717483 38681 IO-APIC-level aic7xxx
> 23: 0 0 IO-APIC-level uhci-hcd
> NMI: 0 0=20
> LOC: 247366287 247364170=20
> ERR: 0
> MIS: 0

this looks reasonably in balance; your biggest irq source is the timer,
which gets a cpu all of it's own and the rest of your irq sources is
hardly noticable and all go together on the other cpu for that reason to
counterbalance the "high rate" timer.=20

--=_courier-12482-1051007733-0001-2
Content-Type: application/pgp-signature; name="signature.asc"
Content-Transfer-Encoding: 7bit
Content-Description: This is a digitally signed message part

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)

iD8DBQA+pRotxULwo51rQBIRAkefAKCGcIREu5sl2dYdYPJGtRB5SlGSCgCfewtq
MDQruxoTr29jsAiGVClzhMs=
=B4d4
-----END PGP SIGNATURE-----

--=_courier-12482-1051007733-0001-2--