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SubjectRe: Dual XEON - >>SLOW<< on SMP
On 2 Nov 2000, Ulrich Drepper wrote:

> I'm seeing this as well, but only with PIII Xeon systems, not PII
> Xeon. Every single timer interrupt on any CPU is accompanied by a NMI
> and LOC increment on every CPU.
>
> CPU0 CPU1
> 0: 146727 153389 IO-APIC-edge timer
> [...]
> NMI: 300035 300035
> LOC: 300028 300028

You mean that isn't supposed to happen?

CPU0 CPU1
0: 8480192 7786028 IO-APIC-edge timer
1: 3 1 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
8: 0 0 IO-APIC-edge rtc
13: 0 0 XT-PIC fpu
23: 188915 191259 IO-APIC-level eth0
28: 16 14 IO-APIC-level sym53c8xx
29: 33655 33665 IO-APIC-level sym53c8xx
30: 0 0 IO-APIC-level es1371
NMI: 16266140 16266140
LOC: 16266123 16266122
ERR: 0

This machine isn't even a Xeon, just a PIII CuMine on a ServerWorks HeIII
chipset.

I reported this on -test6 but got no replies. I'm now running -test10 and
still seeing it.

-Chris
--
Two penguins were walking on an iceburg. The first one said to the
second, "you look like you are wearing a tuxedo." The second one said,
"I might be..."
--David Lynch, Twin Peaks

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