Re: spin_unlock optimization(i386)

Matthias Urlichs (smurf@noris.de)
26 Nov 1999 04:38:18 +0100

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Ingo Molnar <mingo@chiara.csoma.elte.hu> writes:
>
> > for (;;) { for (;;) {
> > i++; a = i;
> > j++; b = j;
> > } if (a < b)
> > BUG()
> > }
>
> in fact with the attached testcode causality seems to break _easily_ on
> Xeon CPUs:
>
Pentium 3 too, though it typically takes quite a bit longer to show up.

-- Matthias Urlichs | noris network GmbH | smurf@noris.de | ICQ: 20193661 The quote was selected randomly. Really. | http://www.noris.de/~smurf/

-- One of the worst of my many faults is that I'm too critical of myself.

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