When the prediction hits,
only a way is accessed and when it misses the remaining ways have to be accessed. The figure then shows a poor hit ratio in
the LLC. Also it is worth to note, that a failed prediction also
means additional cycles in order to get the data information.
Way-Prediction then is a hindrance for performance when
applied in this level. Both Way-Prediction and the PS-Cache
perform worse than our proposal even with one bit, whereas
WayGuard performs almost as well as the proposal when
employing a two-bit tag array.