International Business Machines Corporation

Donald P Wilton

Damian Leo Osisek

William Alan Holder

Brian K Wade

Mary Ellen Carollo

Kevin Scott Adams

Ralph Hodgson

Thomas Michael Vail

Barbara Q Tiffany

James H Switzer, Jr

Dean C DiTommaso

Janet E Thomas

Data processing system efficiency is improved by automatically determining whether to adjust for a next time interval a number N of processors running within the system for processing a workload. The automatically determining includes obtaining a measure of operating system overhead by evaluating one or more characteristics of processor time of the N processors consumed within the system for a time interval, and obtaining a measure of system utilization of the N processors running within the system for processing the workload for the time interval. The automatically determining further includes automatically ascertaining whether to adjust the number N of processors running within the system for the next time interval to improve system efficiency using the obtained measure of operating system overhead and the obtained measure of system utilization of the N processors.

System overhead-based automatic adjusting of number of running processors within a system

Aliasing errors, occasioned by, for example, a programming error resulting in including extra or missing bits in a storage address, wrong addressing mode, or wrong address context, are detected by providing a storage address configuration including gaps in valid addresses. Such a programming error is detected and an exception is thrown (that is, an addressing error is detected and indicated) responsive to an address reference to such a gap in valid addresses. Gaps are configured at complementary address ranges to facilitate detection of such aliasing errors.

System and method for testing for memory address aliasing errors

A method of and a system for displaying computer documents. The method comprises the steps of identifying a base document a plurality of times in a view, each of said plurality of times being associated with a respective use; and for each of those uses, establishing a respective associated reference document. Each of the reference documents stores information specific to the associated use. The method further includes the step of accessing the base document via one of the times the base document is identified in the view. This accessing is done by (i) accessing the one reference document associated with said one of said times, (ii) using that one reference document to access the base document, and (iii) merging and displaying as one document contents of the base document and the use specific information from the one reference document.

Method and system for displaying computer documents

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Vestal, NY, United States of America

Donald P Wilton