Messages in this thread | | | Date | Thu, 25 Nov 1999 15:25:28 -0600 (CST) | From | Oliver Xymoron <> | Subject | Re: spin_unlock optimization(i386) |
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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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