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:
Jan. 31, 2006
Filed:
Oct. 24, 2001
David M. Ungar, Mountain View, CA (US);
David M. Ungar, Mountain View, CA (US);
Sun Microsystems, Inc., Sunnyvale, CA (US);
Abstract
Modern programming languages have stimulated work on systems that dynamically compile or optimize frequently executed portions of programs. In practice, such systems typically rely on ad hoc heuristics. For example, a system may optimize (or compile) some code once its execution count exceeds a given threshold. An analytical model has been developed that expresses performance of such a system. In one embodiment, the model is based on a bytecode frequency histogram, which indicates (for a given program) how many bytecodes run for how many times. It predicts that the optimal compilation threshold will occur where the hazard rate falls through the reciprocal of the break-even point, the number of times a compiled bytecode must be executed to recoup its compilation time. Based on the insight provided by the model, a dynamic compilation control technique has been developed.