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SubjectRe: spin_unlock optimization(i386)
On Thu, 25 Nov 1999, Andrea Arcangeli wrote:

> On Thu, 25 Nov 1999, Oliver Xymoron wrote:
>
> >[..] I don't see anything that
> >suggests a write on CPU 1 throws out a speculative read result on CPU 2.
>
> In one of Erich's email you'll see exactly that.

Yes, I think I see it now. I wasn't understanding how the second processor
noticed ordering problems on speculative reads, until I thought more
carefully about snooping. Not quite magic, but pretty close.

--
"Love the dolphins," she advised him. "Write by W.A.S.T.E.."


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