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. 31, 1994
Filed:
Feb. 18, 1992
Applicant:
Inventors:
Arthur F Cochcroft, Jr, West Columbia, SC (US);
Jimmy D Pike, Greenville, SC (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395650 ; 395425 ; 364D / ; 36424341 ; 3642434 ; 36424344 ; 364243 ; 3642283 ;
Abstract
Process migration is controlled in multiple processor system by a circuit providing a rapid lookup to see if an available process has any affinity for the top N entries on the system run queue. If the currently available processor has an affinity for, i.e. has one or more lines of operands and/or instructions stored in its local cache related to the process, then the processor selects the process it has affinity for from the top N processes on the run queue. In this manner, unnecessary replacements of cache lines with data from main memory is reduced.