Write barrier elision for reference arrays
US8943109B2 · kind B2 · utility
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16References
17Claims
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Key dates
| Filing date | Feb 22, 2011 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0269
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented process for write barrier elision during program execution receives a request to overwrite a reference, determines whether garbage collection is active and responsive to a determination that garbage collection is active, determines whether a reference object has been scanned. Responsive to a determination that the reference object has not been scanned set a mark bit for the reference object in a modified mark map, the reference object is scanned and a scan bit is set for the reference object in the modified mark map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.