Efficient recording and replaying of non-deterministic instructions in a virtual machine and CPU therefor
US8473946B2 · kind B2 · utility
9Cited by
1References
23Claims
0Family size
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Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45533
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The output of a non-deterministic instruction is handled during record and replay in a virtual machine. An output of a non-deterministic instruction is stored to a buffer during record mode and retrieved from a buffer during replay mode without exiting to the hypervisor. At least part of the contents of the buffer can be stored to a log when the buffer is full during record mode, and the buffer can be replenished from a log when the buffer is empty during replay mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.