The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2020
Filed:
Aug. 28, 2018
International Business Machines Corporation, Armonk, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Performance of a data cache is controlled; the cache implements a garbage collection process for maintaining free storage blocks in a data store of the cache and an eviction policy for selecting data to be evicted from the cache. A cache performance control method defines a performance target for operation of the cache and, in operation of the cache, monitors performance of the cache in relation to the performance target. The garbage collection process is selectively performed in a relocation mode and an eviction mode so as to promote compliance with the performance target. In the relocation mode, data contained in a set of storage blocks selected for garbage collection is relocated in the data store. In the eviction mode, a set of storage blocks for garbage collection is selected in dependence on the eviction policy and data contained in each selected storage block is evicted from the cache.