Tracking minimum mutator utilization (MMU) constraints in a...

Details Tracking minimum mutator utilization (MMU) constraints in a... Tracking minimum mutator utilization (MMU) constraints in a...

2007-10-23

2007-10-23

Wong, Don (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

Reexamination Certificate

active

10879332

ABSTRACT:
A garbage collector keeps a log of recent system usage. From that usage thus recorded, it determines whether a time slice whose duration a maximum-mutator-utilization (“MMU”) specification prescribes and whose end time is the same as a prospective future collection pause will contain more than the maximum imposed by the MMU specification on the time slice's garbage collector time. The collector uses that determination to arrive at a compliant length for a pause that is to start at a predetermined time or to find a time at which a pause of a predetermined length can start without violating the MMU specification.

REFERENCES:
patent: 6526421 (2003-02-01), Houldsworth
Perry Cheng , Scalable Real-time Parallel Garbage Collection for Symmetric Multiprocessors, Carnegie Mellon University, http://reports-archive.adm.cs.cmu.edu/anon/2001/CMU-CS-01-174.pdf, Sep. 27, 2001, pp. 1-151.
Scott Nettles et al., Real-Time Replication Garbage Collection, ACM-Sigplan-PLDI-6/93/Albuquerque, N.M. @1993 ACM 0-89791-598-4/93/0006/0217, p. 217-225.
James O'Toole et al., Concurrent Replicating Garbage Collection, www.tesla.lcs.mit.edu/history/publication., Jun. 10, 1998, pp. 1-8.
Cheng, Perry, Blelloch, Guy E., “A Parallel, Real-Time Garbage Collector”, Computer Science Department, Canegie Mellon University, 2001 (12 pages).
Bacon, David F., Cheng, Perry, Rajan, V.T., “A Real-time Garbage Collector with Low Overhead and Consistent Utilization”, IBM T.J. Watson Research Center, Jan. 15-17, 2003. (14 pages).

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