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:
Jun. 28, 2011
Filed:
Dec. 15, 2009
Ralf Schmelter, Wiesloch, DE;
Michael Wintergerst, Rauenberg, DE;
Arno Zeller, Mannheim, DE;
Oliver Bendig, Karlsdorf-Neuthard, DE;
Ralf Schmelter, Wiesloch, DE;
Michael Wintergerst, Rauenberg, DE;
Arno Zeller, Mannheim, DE;
Oliver Bendig, Karlsdorf-Neuthard, DE;
SAP AG, Walldorf, DE;
Abstract
A mechanism for performing loitering trace is disclosed. A method of embodiments of the invention includes initiating a loitering trace of objects that cause a memory leak and remain in a heap after surviving at least one garbage collection operation. Initiating the loitering trace includes detecting the objects remaining in the heap via a loitering module of a profiling structure at a first virtual machine of an application server of a first computer system. Initiating the loitering trace further includes performing time-based sampling for the objects remaining, the time-based sampling having method statistics identifying an average runtime associated with each of the objects remaining. The method statistics is calculated based on a number of uses called for each of the objects remaining and a time length associated with each use of each of the remaining objects. The method further includes providing, from the first virtual machine, the time-based sampling to a second virtual machine of the first computer system or a second computer system, and performing an act on the objects remaining in the heap based on the time-based sampling.