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From: Stefan =?iso-8859-1?Q?E=DFer?= <se@FreeBSD.org>
To: Bruce Evans <bde@zeta.org.au>
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cc: harti@freebsd.org
cc: current@freebsd.org
Subject: Re: New interrupt stuff breaks ASUS 2 CPU system
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Date: Fri, 07 Nov 2003 09:35:00 -0000
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On 2003-11-07 20:04 +1100, Bruce Evans <bde@zeta.org.au> wrote:
> However, using the apic almost doubles the overheads for the a45 cases.
> This seems to be due to extra interrupts.  The UART and/or driver already

Just another data point:

Seems that the interrupt rate doubled for drm0 on my system 
(from 60 to 120 driving a LCD at 60Hz vertical refresh).

I thought this might be a problem with shared interrupts (drm0
and xl0 shared APIC IRQ 16), but removing the (actually unused)
xl driver did not make a difference ...

Regards, STefan