Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2007-10-02
2007-10-02
An, Meng-Al T. (Department: 2195)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
C718S102000
Reexamination Certificate
active
10422037
ABSTRACT:
A system and method is altering the priority of a process, or thread of execution, when the process acquires a software lock. The priority is altered when the lock is acquired and restored when the process releases the lock. Thread priorities can be altered for every lock being managed by the operating system or can selectively be altered. In addition, the amount of alteration can be individually adjusted so that a process that acquires one lock receive a different priority boost than a process that acquires a different lock. Furthermore, a method of tuning a computer system by adjusting lock priority values is provided.
REFERENCES:
patent: 5241676 (1993-08-01), Kubo
patent: 5247675 (1993-09-01), Farrell et al.
patent: 5515538 (1996-05-01), Kleiman
patent: 5524247 (1996-06-01), Mizuno
patent: 5630128 (1997-05-01), Farrell et al.
patent: 5745778 (1998-04-01), Alfieri
patent: 5826081 (1998-10-01), Zolnowsky
patent: 5946711 (1999-08-01), Donnelly
patent: 6105051 (2000-08-01), Borkenhagen et al.
patent: 6167424 (2000-12-01), Bak et al.
patent: 6212544 (2001-04-01), Borkenhagen et al.
patent: 6338078 (2002-01-01), Chang et al.
patent: 6427195 (2002-07-01), McGowen et al.
patent: 6430593 (2002-08-01), Lindsley
patent: 6434591 (2002-08-01), Watakabe et al.
patent: 6477562 (2002-11-01), Nemirovsky et al.
patent: 6587955 (2003-07-01), Foote et al.
patent: 6845504 (2005-01-01), Hua et al.
patent: 02-126330 (1990-05-01), None
patent: 06-187175 (1994-07-01), None
patent: 07-230387 (1995-08-01), None
patent: 08-077025 (1996-03-01), None
patent: 11-249916 (1999-09-01), None
patent: 2001-125799 (2001-05-01), None
Macon, Jr. et al., “Maintaining Application Compatibility in Multiprocessor Environments,” IBM Technical Disclosure Bulletin, vol. 38., No. 8, p. 333-34, Aug. 1995.
“Lock Priority Boosting in an MP System with Multiple Run Queues,” IBM Research Disclosure, p. 174, Jan. 2001.
Accapadi Jos Manuel
Dunshea Andrew
Michel Dirk
Van Fleet James W.
An Meng-Al T.
Dawkins Marilyn S.
International Business Machines - Corporation
VanLeeuwen & VanLeeuwen
Wai Eric C
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