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:
Jul. 13, 2010
Filed:
Oct. 30, 2008
Wojciech Kuczynski, Oshawa, CA;
Adam J. Storm, Toronto, CA;
Roger Luo Quan Zheng, Richmond Hill, CA;
Sarah Posner, Toronto, CA;
Christian Marcelo Garcia-arellano, Richmond Hill, CA;
Sam Sampson Lightstone, Toronto, CA;
Wojciech Kuczynski, Oshawa, CA;
Adam J. Storm, Toronto, CA;
Roger Luo Quan Zheng, Richmond Hill, CA;
Sarah Posner, Toronto, CA;
Christian Marcelo Garcia-Arellano, Richmond Hill, CA;
Sam Sampson Lightstone, Toronto, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
There are disclosed systems and computer program products for dynamically resizing memory pools used by database management systems. In one aspect, if a decrease in allocation to the memory pool is required, at least one page grouping that may be freed from the memory pool is identified as a candidate based on its position in a list of page groupings. If the page grouping contains any used memory blocks, the used memory blocks may be copied from a candidate page grouping to another page grouping in the list in order to free the candidate page grouping. Once the candidate page grouping is free of used memory blocks, the candidate page grouping may be freed from the memory pool. As an example, this system or computer program product may be used for dynamically resizing locklists or lock memory.