| 摘要 |
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for estimating the stack distance of an access to a cache. In one aspect, a method includes determining a current estimate value of the stack distance. For each of K buckets, a minimum value and a maximum value are initialized, wherein each bucket corresponds to a range of possible fingerprint values for accesses. A first access is processed, including: determining a first fingerprint value for the first access; identifying a first bucket for the first access based on the first fingerprint value; and determining that the first fingerprint value is between the minimum value and the maximum value for the first bucket, and in response, increasing the current estimate value and adjusting the minimum value or the maximum value for the first bucket. |
