Using branch instruction counts to facilitate replay of virtual machine instruction execution
US7844954B2 · kind B2 · utility
29Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2008 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Jun 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45591
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and computer program product for logging non-deterministic events of a virtual machine executing a sequence guest instructions, the method including tracking an execution point in the sequence of executing guest instructions, the tracking of the execution point including determining a branch count of executed branch instructions; and detecting an occurrence of a non-deterministic event directed to the virtual machine during execution of the sequence of guest instructions, and recording information which includes an identifier of a current execution point, wherein the identifier includes the branch count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.