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. 22, 2019
Filed:
Feb. 23, 2016
Netapp, Inc., Sunnyvale, CA (US);
Jeffrey S. Kimmel, Chapel Hill, NC (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A hybrid message-based scheduling technique efficiently load balances a storage I/O stack partitioned into one or more non-blocking (i.e., free-running) messaging kernel (MK) threads that execute non-blocking message handlers (i.e., non-blocking services) and one or more operating system kernel blocking threads that execute blocking services. The technique combines the blocking and non-blocking services within a single coherent extended programming environment. The messaging kernel (MK) operates on processors apart from the operating system kernel that are allocated from a predetermined number of logical processors (i.e., hyper-threads) for use by an MK scheduler to schedule the non-blocking services within storage I/O stack as well as allocate a remaining number of logical processors for use by the blocking services. In addition, the technique provides a variation on a synchronization primitive that allows signaling between the two types of services (i.e., non-blocking and blocking) within the extended programming environment.