It is great to see a tie from a higher level application performance problem all the way down to a processor architecture issue (the L1 Cache). I was working

It is great to see a tie from a higher level application performance problem all the way down to a processor architecture issue (the L1 Cache). I was working at Intel when VTune first came into existence and it was such an awesome way to see how small code changes results in significant differences in actual execution. This was especially true when the Pentium Pro came out with the uOps architecture. One of the many good reasons to have a real 'full stack' appreciation of the platforms we work on.