Messages in this thread |  | | Subject | Re: Locking comment on shrink_caches() | Date | Thu, 27 Sep 2001 23:59:38 +0100 (BST) | From | Alan Cox <> |
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> See prefetching - the CPU prefetching will hide some of the effect and > the spin_lock_prefetch() macro does wonders for the rest. > > Well, if prefetching can do it faster than avoiding the transaction > altogether, I'm game :-)
That would depend on the cost of avoidance, the amount of contention and the distance ahead you can fetch. Avoiding it also rather more portable so I suspect you win
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