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, 2014
Filed:
Aug. 25, 2011
Mateusz Berezecki, Menlo Park, CA (US);
Mateusz Berezecki, Menlo Park, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
An application process operates at a privilege level lower than that of the kernel code of the operating system in which the process executes. When the application process requires performance of an operating system service for which the process lacks sufficient privileges to perform directly, rather than repeatedly requesting the service by issuing separate software interrupts, the process instead accumulates the data corresponding to the different service requests in a data container block and defers performance of the service. Whenever the process needs to complete the service, rather than deferring its performance, the process issues a single software interrupt that causes the kernel to use the accumulated data in the data container block to perform each of the N accumulated service requests. This reduces the number of interrupts that must be handled from N to one, thereby greatly reducing the overhead imposed by interrupt handling.