Compact garbage collection tables

Details Compact garbage collection tables Compact garbage collection tables

2005-07-06

2008-12-30

Vital, Pierre M. (Department: 2169)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07472145

ABSTRACT:
A compact set of garbage collection tables takes advantage of the redundancies often inherent in live pointer information: multiple call sites in a call stack often share common live pointer information. A call site table lists call site identifiers associated with call stack locations having pointers to heap-allocated data. An associated indirection table (i.e., a descriptor reference table) provides a reference (e.g., an index or a pointer) into a descriptor table, which stores unique descriptors of the call stack locations of interest. The aggregate memory space used by the three tables (i.e., the call site table, the indirection table, and the descriptor table) is typically less than the memory space used by the monolithic live pointer information table.

REFERENCES:
patent: 4890223 (1989-12-01), Cruess et al.
Tarditi David, Compact Garbage Collection Tables, 2000, ACM, pp. 50-58.
Stichnoth et al., Support for Garbage Collection at Every Instruction in a Jave Compiler,1999 ACM, pp. 118-127.
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Printezis et al., A Generational Mostly-concurrent Garbage Collector, 2000 ACM, pp. 143-154.
Andrew W. Appel, Simple Generational Garbage Collection and Fast Allocation, 1998, Prince University, pp. 1-16.
Fitzgerald at al. Marmot: An Optimizing Compiler for Java, Jun. 16, 1999, Microsoft Reesearch, pp. 1-29.
Fitzgerald et al., Marmot: An optimizing Compiler for Java, Jun. 16, 1999, Microsoft Research, p. 1-29.

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