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:
Oct. 11, 2022
Filed:
Jul. 16, 2021
Arm Limited, Cambridge, GB;
Robert Gwilym Dimond, Cambridge, GB;
Matthew Lucien Evans, Cambridge, GB;
Arm Limited, Cambridge, GB;
Abstract
An access frequency caching hardware structure has entries each storing an access frequency counter indicative of a frequency of accesses to a corresponding page of a memory address space. Access frequency tracking circuitry is responsive to a given memory access request requesting access to a target page, to determine whether the access frequency caching hardware structure already includes a corresponding entry which is valid and corresponds to the target page. When the structure includes the corresponding entry, a corresponding access frequency counter specified by the corresponding entry is incremented. In response to a counter writeback event associated with a selected access frequency counter corresponding to a selected page, an update is made to a global access frequency counter corresponding to the selected page within a global access frequency tracking data structure stored in the memory system.