Methods, apparatus, and articles of manufacture to virtualize performance counters
US9063762B2 · kind B2 · utility
7Cited by
0References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/88
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus, and articles of manufacture to virtualize performance counters are disclosed. An example method includes scheduling a virtual machine on a processor, incrementing a virtual performance counter in response to an occurrence of a speculative event during direct execution of guest instructions by the virtual machine on the processor, and incrementing the virtual performance counter in response to an occurrence of the speculative event during execution of emulated instructions by a hypervisor on behalf of the virtual machine on the processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.