>> If you want to do something more complex, like simulate a
>> perfect instruction cache but a realistic data cache, then
>> you probably would need to hack up a new cache model that
>> simply always acted as if it had a hit.
>
> I've added a "perfect_cache" parameter to BaseCache with the associated
> Python magic. This is used in Cache::access in cache_impl.hh as follows:
>
> if(perfect_cache) {
> hits[req->cmd.toIndex()][req->thread_num]++; // update stats
> return MA_HIT; // perfect cache always
> hits
> }
Oops, you probably want:
// clear dirty bit if write through
if (!req->cmd.isNoResponse())
respond(req, curTick+lat);
in there too, still not 100% convinced yet though.
James
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