The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2003
Filed:
Feb. 29, 2000
Applicant:
Inventor:
Dana M. Henriksen, Lindon, UT (US);
Assignee:
Novell, Inc., Provo, UT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/314 ;
U.S. Cl.
CPC ...
G06F 1/314 ;
Abstract
A method and apparatus for improving multi-processor performance where the various processors are competing for spinlock acquisition is described. If a spinlock testing processor fails to acquire the spinlock, it re-tries for access after a small wait interval has passed. If the spinlock is still locked, the testing processor retries with an additional increase in the wait interval. Subsequent re-tries progressively increases the wait interval until a maximum wait interval is reached. At this point, the wait interval is reset back to an initial small wait interval and the procedure is repeated until the processor gains access to the spinlock.