Patent ID: 7934081
Filing Date: 2011-04-26
Classification: G06F

Abstract:
1. A program product comprising: a computer readable medium, and instructions stored on said medium which are effective, when executing on a computer system coupled to layered memory which has a plurality of layers of cache including a level one cache; to store standard cache lines in the level one cache; following an initial delay, to selectively store in interchangeable locations of the level one cache of the layered memory both standard cache lines and trace lines; to partition an instruction(s) address presented to the level one cache; to index the instruction(s) address into a tag array of the level one cache; to compare the instruction(s) address with the tag array a first time to determine whether a match is found; if a match is found on the first comparison, then if no match is found on the first comparison, then if a match is found on the second comparison; then