Copy collector with efficient abort-on-copy transition to mark collector
US8438193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2012 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0253
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for performing garbage collection on an object heap is described. In one embodiment, such a method includes performing a copy phase on an object heap by copying live objects from a source space to a destination space. An abort condition is generated when copying an object from the source space to the destination space fails due to insufficient space. In response to the abort condition, tracing work and reference updating associated with the copy phase are terminated. A mark phase is then initiated that marks live objects in the source space. This mark phase resumes tracing work and reference updating terminated by the copy phase in order to avoid or minimize the repetition of work performed by the copy phase. A corresponding computer program product and system are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.