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. 20, 2003
Filed:
Jan. 23, 2001
Allen J. Otis, Beaverton, OR (US);
Gemstone Systems, Inc., Beaverton, OR (US);
Abstract
A virtual machine object memory structure includes a contiguous region of virtual address space in which objects (i.e., temporary objects) are segregated into a new generation space and an old generation space according to the ages of the objects, as well as a permanent object memory (POM) generation space. The POM generation space operates as a persistent object cache that is not subject to conventional garbage collection processes. The lifetime of an object in the POM generation space relates to the frequency at which objects are copied from a persistent object store (e.g., disk storage) and shared object cache, rather than garbage collection processes relating to the new generation space and the old generation space.