Selective promotion policy for generational garbage collectors

Details Selective promotion policy for generational garbage collectors Selective promotion policy for generational garbage collectors

2004-04-09

2010-12-14

Hicks, Michael J (Department: 2165)

Data processing: database and file management or data structures

Garbage collection

Generational

Reexamination Certificate

active

07853628

ABSTRACT:
Techniques for selectively promoting objects in a generational garbage collector are provided. Rather than using a single promotion policy, information about objects are used to determine and effectively enforce a suitable promotion policy for them. This information, for example, may be information about the general context under which the object is allocated or executed, or it may pertain to a particular operation, thread, function (or method) where garbage is likely to be generated and/or mostly garbage is generated. When it is determined that garbage is likely to be generated or mostly garbage is to be generated, a more suitable promotion policy can be enforced rather than a general (or normal). Objects are allocated using two or more memory allocators. Typically, objects that are likely to be garbage are allocated in a manner that effectively delays or bars their promotion to the next generation.

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U.S. Appl. No. 11/023,029, filed Dec. 23, 2004.

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