Invention Application
- Patent Title: Directed Event Signaling For Multiprocessor Systems
- Patent Title (中): 多处理器系统的定向事件信令
-
Application No.: US14451628Application Date: 2014-08-05
-
Publication No.: US20160041852A1Publication Date: 2016-02-11
- Inventor: Dario Suarez Gracia , Han Zhao , Pablo Montesinos Ortego , Gheorghe Calin Cascaval , James Xenidis
- Applicant: QUALCOMM Incorporated
- Main IPC: G06F9/54
- IPC: G06F9/54 ; G06F1/32 ; G06F9/50

Abstract:
Multi-processor computing device methods manage resource accesses by a signaling event manager signaling processor elements requesting access to a resource to wake up to access the resource when the resource is available or wait for an event when the resource is busy. Processor elements may enter a sleep state while awaiting access to the requested resource. When multiple elements are waiting for the resource, the processor element with a highest assigned priority is signaled to wake up when the resource is available without waking other elements. Priorities may be assigned to processor elements waiting for the resource based on a heuristic or parameter that may depend on a state of the computing device or the processor elements. A sleep duration may be estimated for a processor element waiting for a resource and the processor element may be removed from a scheduling queue or assigned another thread during the sleep duration.
Public/Granted literature
- US09632569B2 Directed event signaling for multiprocessor systems Public/Granted day:2017-04-25
Information query