Re: [hatari-devel] Issues with cache hits/misses?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 26/05/2015 16:39, Douglas Little a écrit :

> ...then misaligned request AA will fill two cache entries at once -
> 00,11. Request BB will only miss on cache entry 22, since 11 is already
> filled (a partial hit) from the previous request. And so on for
> contiguous sequences...
>
>
> It's quite different though for random-access to data, where it can miss
> on every word - and if the word is also misaligned, produce double the
> miss rate, effectively fetching 2x longs for every single word requested.
>
> Sorry for the bad diagram btw. :)


Yes you're right, bad math on my part :)