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:
May. 11, 2010
Filed:
Jan. 16, 2007
Paul Caprioli, Santa Clara, CA (US);
Shailender Chaudhry, San Francisco, CA (US);
Sherman H. Yip, San Francisco, CA (US);
Paul Caprioli, Santa Clara, CA (US);
Shailender Chaudhry, San Francisco, CA (US);
Sherman H. Yip, San Francisco, CA (US);
Oracle America, Inc., Redwood Shores, CA (US);
Abstract
One embodiment of the present invention provides a system that counts speculatively-executed instructions for performance analysis purposes. During operation, the system counts instructions which are normally executed during a normal-execution mode. Next, the system enters a speculative-execution mode wherein instructions are speculatively executed without being committed to the architectural state of the processor. During the speculative-execution mode, the system counts the speculatively-executed instructions in a manner that enables the count of speculatively-executed instructions to be reset if the speculative execution fails.