Which Benchmark Is This? Mystery Cache

I haven't concentrated too much on benchmarks recently but since I've always enjoyed caches that were benchmark-related, I thought I'd try a simple puzzle that is based on a benchmark.

All you have to do is identify this benchmark, enter the benchmark code in the certitudes checker (the code begins with KU) and if you're correct, the checker will respond with the coordinates for the cache. Since GC.com no longer maintains a Benchmark Database it is now quite a bit more difficult to find this code. For a quick way to get it, see the hint.