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. 22, 2019
Filed:
May. 26, 2015
Vmware, Inc., Palo Alto, CA (US);
Benjamin Charles Serebrin, Sunnyvale, CA (US);
Daniel Michael Hecht, San Francisco, CA (US);
VMWARE, INC., Palo Alto, CA (US);
Abstract
Methods, apparatus, and articles of manufacture to virtualize performance counters are disclosed. An example method includes dividing performance events to be counted into a plurality of classes; assigning a first virtual performance counter of a virtual machine to a first performance event type in a first one of the classes; assigning a second virtual performance counter of the virtual machine to a second performance event type in a second one of the classes different from the first class; incrementing the first virtual performance counter in response to a first occurrence of the first performance event type during direct execution of guest instructions by the virtual machine; and not incrementing the first virtual performance counter in response to a second occurrence of the first performance event type during execution of emulated instructions by a hypervisor on behalf of the virtual machine.