Patent ID: 11947461
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. A prefetch streaming filter for a computing system, the prefetch streaming filter comprising a plurality of entries for storing data, each entry corresponding to an allocated prefetch stream out of a plurality of prefetch streams being prefetched and tracked and storing a count of a number of times a prefetch request corresponding to the allocated prefetch stream hits in a data cache, where a hit in the data cache indicates data associated with the prefetch request is in the data cache,
wherein the count in an entry in the prefetch steaming filter is incremented in response to a prefetch request hitting in the data cache, and the count in the entry in the prefetch streaming filter is reset to zero in response to the prefetch request missing in the data cache, where missing in the data cache indicates that data associated with the prefetch request is not in the data cache.