Re: SMP patch

Manfred Spraul (manfreds@colorfullife.com)
Tue, 21 Sep 1999 09:41:30 +0000

Ingo Molnar wrote:
> (i'm debugging this bias problem right now, it has been reported by others
> as well.) Does the bias go away if you add 'nmi_watchdog = 0' to your
> LILO boot parameters?

No.

I'd say the bias is even stronger.
Note that the bias is not always in favor of CPU1:
* completely idle, X running, screen saver: power_saver, suspend:
bias on CPU1.
4,000 on CPU0
50,000 on CPU1

* waiting in a xterm window, typing some characters, xsnow running in
the background:
CPU0: 2900 interrupts
CPU1: 1200 interrupts

IIRC, the NMI itself was perfectly shared by both CPU's.

--
	Manfred




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