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. 31, 2015
Filed:
Dec. 15, 2010
Xiaozhou LI, Cupertino, CA (US);
Mehul A. Shah, Saratoga, CA (US);
Xiaozhou Li, Cupertino, CA (US);
Mehul A. Shah, Saratoga, CA (US);
Hewlett-Packard Development Company, L. P., Houston, TX (US);
Abstract
A system comprises a processor and storage containing software executable by the processor. The storage also contains a trace log that contains information pertaining to read and write operations and, for each read and write operation, the information is indicative of a start time, a completion time, and a value targeted by the read or write operation, Based on the trace log, the software causes the processor to construct a directed graph comprising nodes as well as edges interconnecting at least some of the nodes, each node representing a read or write operation and determine whether the constructed directed graph has a cycle. At least one edge is at least one of a data edge representing a data precedence between operations and a time edge representing a time precedence between operations, and at least one edge is a hybrid edge representing both time and data precedence between operations.