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:
Aug. 31, 2010
Filed:
Jan. 09, 2008
Bruce L. Worthington, Redmond, WA (US);
Goran Marinkovic, Kirkland, WA (US);
Brian Railing, Redmond, WA (US);
Qi Zhang, Redmond, WA (US);
Swaroop V. Kavalanekar, Issaquah, WA (US);
Bruce L. Worthington, Redmond, WA (US);
Goran Marinkovic, Kirkland, WA (US);
Brian Railing, Redmond, WA (US);
Qi Zhang, Redmond, WA (US);
Swaroop V. Kavalanekar, Issaquah, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
An interrupt redirection and coalescing system for a multi-processor computer. Devices interrupt a processor or group of processors using pre-defined message address and data payloads communicated with a memory write transaction over a PCI, PCI-X, or PCI Express bus. The efficiency of processing may be improved by combining multiple interrupt notifications into a single interrupt message to a processor. For some interrupts on a multi-processor computer, such as those signaling completion of an input/output (I/O) operation assigned to a device, the efficiency of processing the interrupt may vary from processor to processor. Processing efficiency and overall computer system operation may be improved by appropriately coalescing interrupt messages within and/or across a plurality of queues, where interrupts are queued on the basis of which processor they target.