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:
Feb. 26, 2013
Filed:
May. 22, 2008
Tong Chen, Yorktown Heights, NY (US);
Haibo Lin, Beijing, CN;
John K. O'brien, South Salem, NY (US);
Tao Zhang, Duluth, GA (US);
Tong Chen, Yorktown Heights, NY (US);
Haibo Lin, Beijing, CN;
John K. O'Brien, South Salem, NY (US);
Tao Zhang, Duluth, GA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Reducing runtime coherency checking using global data flow analysis is provided. A determination is made as to whether a call is for at least one of a DMA get operation or a DMA put operation in response to the call being issued during execution of a compiled and optimized code. A determination is made as to whether a software cache write operation has been issued since a last flush operation in response to the call being the DMA get operation. A DMA get runtime coherency check is then performed in response to the software cache write operation being issued since the fast flush operation.