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:
Sep. 25, 2012
Filed:
May. 08, 2009
George R. Cameron, Santa Cruz, CA (US);
Blake A. Jones, Oakland, CA (US);
Kit M. Chow, Carlsbad, CA (US);
George R. Cameron, Santa Cruz, CA (US);
Blake A. Jones, Oakland, CA (US);
Kit M. Chow, Carlsbad, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
A method involving receiving an indication of a requirement to allocate at least one page for a process, where pages are associated with cache colors; generating a selection bitmap by performing a logical operation of a system available colors bitmap and a process bitmap, where the system available colors bitmap and the process bitmap each include one bit corresponding to each cache color, where each bit of the system available colors bitmap indicates whether a number of pages associated with a corresponding cache color that are available to be allocated is above a minimum threshold, and where each bit of the process bitmap indicates whether any pages associated with the corresponding cache color have been recently allocated for the process. The method also includes selecting, using the selection bitmap, a cache color; and allocating a page for the process, wherein the allocated page is associated with the selected cache color.