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:
Nov. 10, 1998
Filed:
Aug. 19, 1994
James J Leigh, Wyncote, PA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A method and system are disclosed for limiting the processing power of a CPU or CPUs in a multi-processing system comprising at least one constrained or hobbled CPU and a main memory. The novel method includes executing a high priority process on the CPU which effectively interrupts the processing of a task at a predetermined time T.sub.1 during a full time cycle T.sub.0 -T.sub.2 rendering the CPU unavailable for a predetermined period of time (T.sub.1 to T.sub.2) which represents a predetermined percentage of the CPUs full computing power. The task that is interrupted is continued at the start of the next time cycle of the CPU so that all tasks are completed. The power of any CPU so hobbled may be decreased by a predetermined percentage of full power by decreasing the processing time cycle between T.sub.0 and T.sub.1, without the need for hardware or operating system modification.