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:
Mar. 17, 2009
Filed:
Feb. 12, 2004
William Preston Alexander, Iii, Austin, TX (US);
Robert Tod Dimpsey, Austin, TX (US);
Kean G. Kuiper, Round Rock, TX (US);
Frank Eliot Levine, Austin, TX (US);
Robert John Urquhart, Austin, TX (US);
William Preston Alexander, III, Austin, TX (US);
Robert Tod Dimpsey, Austin, TX (US);
Kean G. Kuiper, Round Rock, TX (US);
Frank Eliot Levine, Austin, TX (US);
Robert John Urquhart, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for identifying differences in runs of a computer program that are due to changes in the code of the computer program. With the apparatus and method, call trees are generated for two or more builds of a computer program. The apparatus and method perform a 'tree-subtract' operation in which the two or more call trees generated during runs of two or more different builds of a computer program are subtracted from one another to identify build to build differences in the execution of the computer program. From the resulting tree, portions of the runs of the different builds of the computer program where the resource utilization of the computer program has not changed are easily identifiable. Moreover, portions of the runs of the different builds of the computer program where there are improvements or regressions in resource utilization of the computer program may be easily identifiable.