Scalable, space-efficient, parallel remembered-sets

Details Scalable, space-efficient, parallel remembered-sets Scalable, space-efficient, parallel remembered-sets

2006-06-06

2006-06-06

Mofit, Apu (Department: 2165)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07058670

ABSTRACT:
A garbage collector operates in increments in which it collects a collection set consisting of one or more segments of a dynamically allocated heap. For each of those segments it maintains a remembered set of locations in which it has previously found references to objects in that associated segment. Each remembered set is stored in a plurality of remembered-set structures, each of which is associated with a separate one of a corresponding plurality of “stripes” into which at least a portion of the heap is divided. The garbage collector executes its remembered-set-updating operations in a plurality of concurrently executing threads, each of which claims exclusive access to a subset of the constituent remembered-set structures. By restricting its access only to that subset of the remembered-set structures that it has claimed, an individual thread is able to perform its portion of the updating operation without the need for synchronization with other threads.

REFERENCES:
patent: 6185581 (2001-02-01), Garthwaite
patent: 6363403 (2002-03-01), Roy et al.
patent: 6381738 (2002-04-01), Choi et al.
patent: 6424977 (2002-07-01), Garthwaite
patent: 6490599 (2002-12-01), Kolodner et al.
patent: 6826757 (2004-11-01), Steele et al.
patent: 6845437 (2005-01-01), Borman et al.
patent: 6868488 (2005-03-01), Garthwaite
Jones and Lins, “Garbage Collection: Algorithms for Automatic Dynamic Memory Management,” 1996, pp. 165-179, Wiley, New York.
Paul Wilson, “Uniprocessor Garbage Collection Techniques,” Technical Report, University of Texas, 1994.
Hudson and Moss, “Incremental Collection of Mature Objects,” Proceedings of International Workshop on Memory Management, 1992, Springer-Verlag.
Grarup and Seligmann, “Incremental Mature Garbage Collection,” M.Sc. Thesis, Available at http://www.daimi.au.dk/˜jacobse/Papers/.
Seligmann and Grarup, “Incremental Mature Garbage Collection Using the Train Algorithm,” Proceedings of ECOOP '95, Ninth European Conference on Object-Oriented Programming, 1995, http://www.daimi.au.dk/˜ jacobse/Papers/.
Clark and Mason, “Compacting Garbage Collection can be Fast and Simple,” Software-Practice and Experience, Feb. 1996, pp. 177-194, vol. 26, No. 2.
Henry Baker, “List Processing in Real Time on a Serial Computer,” Communications of the ACM 21, Apr. 4, 1978, pp. 280-294.
Appel, Ellis, and Li, “Real-time Concurrent Collection on Stock Multiprocessors,” ACM SIGPLAN Notices, 1988.
Rodney A. Brooks, “Trading Data Space for Reduced Time and Code Space in Real-Time Garbage Collection on Stock Hardware,” Proceedings of the 1984 ACM Symposium on Lisp and Functional Programming, pp. 108-113, Aug. 1984. Austin, Texas.
Herilhy and Moss, “Lock-Free Garbage Collection for Multiprocessors,” ACM SPAA, 1991, pp. 229-236.
Bacon, Attanasio, Lee, Rajan, and Smith, “Java without the Coffee Breaks: A Nonintrusive Multiprocessor Garbage Collector,” SIGPLAN Conference on Programming Language Design and Implementation, Snowbird, Utah, Jun. 2001.
James Stamos, “Static Grouping of Small Objects to Enhance Performance of a Paged Virtual Memory,” ACM Transactions on Computer Systems, vol. 2, No. 2, pp. 155-180, May 1984.
David A. Moon, “Garbage Collection in a Large Lisp System,” Conference Record of the 1984 ACM Symposium on Lisp and Funstional Programming, Austin, Texas, Aug. 1984, pp. 235-246.
Robert Courts, “Improving Locality of Reference in a Garbage-Collecting Memory Management System,” Communications of the ACM, Sep. 1988, pp. 1128-1138, vol. 31, No. 9.
Wilson, Lam, and Moher, “Effective Static-Graph Reorganization to Improve Locality in Garbage Collected Systems,” Proceedings of ACM SIGPLAN Conference on Programming Language Design and Implementation, Jun. 1991, Toronto, Ontario, Canada.
Lam, Wilson, and Moher, “Object Type Directed Garbage Collection to Improve Locality,” Proceedings of the International Workshop on Memory Management '92, St. Malo, France, Sep. 1992, pp. 404-425.
Chilimbi and Larus, “Using Generational Garbage Collection to Implement Cache-Conscious Data Placement,” International Symposium on Memory Management, Oct. 1998.
Lieberman and Hewitt, “A real-time garbage collector based on the lifetimes of objects,” Communications of the ACM, 1983, pp. 419-429, vol. 26, No. 6.
David Ungar, “Generation Scavenging: A Non-Disruptive High Performance Storage Reclamation Algorithm,” ACM SIGPLAN Notices, Apr. 1984, pp. 157-167, vol. 19, No. 5.
Andrew W. Appel, “Simple Generational Garbage Collection and Fast Allocation,” Software Practice and Experience, 1989, pp. 171-183, vol. 19, No. 2.
Hudson and Diwan, “Adaptive Garbage Collection for Modula-3 and Smalltalk,” in OOPSLA/ECOOP Workshop on Garbage Collection in Object-Oriented Systems, Oct. 1990, Edited by Eric Jul and Niels-Cristial Juul.
Hudson and Hosking, “Remembered sets can also play cards,” in OOPSLA/ECOOP Workshop on Garbage Collection in Object-Oriented System, Oct. 1993, Edited by Moss, Wilson, and Zorn.
Hosking and Moss, “Protection traps and alternatives for memory management of an object-oriented language,” ACM Proceedings of the Fourteenth ACM Symposium on Operating Systems Principles, Dec. 1993, pp. 106-119, vol. 27, No. 5.
Hosking, Moss, and Stefanovic, “A Comparative Performance Evaluation of Write Barrier Implementation,” in OOPSLA ACM Conference on Object-Oriented Programming, Systems, Languages, and Applications, Oct. 1992, pp. 92-109, vol. 27, No. 10, ACM SIGPLAN Notices, Vancouver, BC, ACM Press.
Patrick G. Sobalvarro, “A Lifetime-based Garbage Collector for Lisp Systems on General-Purpose Computers,” Massachusetts Institute of Technology, AITR-1417, 1988.

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