Messages in this thread | | | Date | Fri, 3 Dec 1999 23:43:26 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: [patch] new spinlock variant, spinlock-2.3.30-A4 |
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On Fri, 3 Dec 1999, Manfred wrote:
>It seems that the cpu discards speculative reads if it sees a write >operation on >the system bus (I tried to force a speculative read, and my proggy never >failed)
could you elaborate? If reads would been invalidated by parallel writes the wait event shouldn't hang. The event-CPU writes in parallel and the speculative read is not invalidated.
Andrea
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