On Thu, 28 Aug 2014 12:15:57 -0700, Ed Jaffe wrote:
>
>ISTR it used to be that prefetched cache lines were thrown away on a key
>change. I'm not sure if that's true any more.
> 
That might be a design decision, that it's less costly to discard the
entire cache line infrequently than to verify the key on every access.

-- gil

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