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:
Jan. 18, 2011
Filed:
Oct. 30, 2006
Kaiyuan Huang, Ottawa, CA;
Michael F. Kemp, Ottawa, CA;
Ernst Munter, Ottawa, CA;
Venkatesh Bathala, Nepean, CA;
Damodharan Narayanan, Kanata, CA;
Kaiyuan Huang, Ottawa, CA;
Michael F. Kemp, Ottawa, CA;
Ernst Munter, Ottawa, CA;
Venkatesh Bathala, Nepean, CA;
Damodharan Narayanan, Kanata, CA;
Liquid Computing Corporation, Ottawa, CA;
Abstract
In a multi-processor system with a high degree of inter processor communication, an operating system extension is described as a kernel function to poll a receive buffer. This is an opportunistic poll that continues to run in the user context after an application process has invoked the kernel with a blocking receive function. It is also running whenever no higher priority task is running. New data packets may be received for the present user application process while avoiding context switches, and for a different user process while avoiding interrupts. A hardware implemented delay timer and a buffer fill monitor generate interrupts when the system is not polling, thus guaranteeing a maximum latency and preventing buffer overflow, but these interrupts are largely avoided by polling when the system is handling a large amount of inter processor data traffic.