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.

Date of Patent:
Jan. 10, 2017

Filed:

Oct. 28, 2013
Applicants:

Thomas Nowatzki, Roseville, MN (US);

Charles Caldarale, Roseville, MN (US);

Inventors:

Thomas Nowatzki, Roseville, MN (US);

Charles Caldarale, Roseville, MN (US);

Assignee:

Unisys Corporation, Blue Bell, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/45 (2006.01); G06F 11/34 (2006.01);
U.S. Cl.
CPC ...
G06F 8/433 (2013.01); G06F 11/34 (2013.01);
Abstract

Systems and methods for monitoring performance of virtualized instructions are provided. One method includes, during emulated execution of non-native program code including non-native instructions, maintaining a program flow history in a computing system representing a flow of program execution of the non-native program code. The program flow history includes a listing of non-native jump instructions for which execution is emulated in the computing system. The method also includes capturing one or more statistics regarding performance in native execution of the non-native program code on the computing system. The method further includes correlating the one or more statistics to the program flow history to determine performance of the computing system in executing one or more non-native instructions between each of the non-native jump instructions.


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