Feature Request: more cache control (Score 1)

Being on the cutting edge of real-time ray-tracing development, I'd have to say the thing that would be most effective would be to get a feature that the way ray tracing hardware developers as well as gpu developers have and that is to work around cache misses. What I've read about in ray tracing hardware and in gpus is if there's a cache miss, the hardware puts that "thread" into a frozen state and works on something else until the cache is loaded. I realize that hardware thread support would probably not fit within the scope of x86, but perhaps some instructions could be added that would allow you to asyncronously load/save data into/from the cache, and query the state of that request. This way you could work on something else while waiting on the request to finish. In realtime raytracing the problem dataset is too big and too unpredictable to serially optimize, so these kinds of tools would allow for a vast leap forward in performance. Thanks!