Invention Grant
US09454218B2 Apparatus, method, and system for early deep sleep state exit of a processing element
有权
处理元件早期深度睡眠状态退出的装置,方法和系统
- Patent Title: Apparatus, method, and system for early deep sleep state exit of a processing element
- Patent Title (中): 处理元件早期深度睡眠状态退出的装置,方法和系统
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Application No.: US14659253Application Date: 2015-03-16
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Publication No.: US09454218B2Publication Date: 2016-09-27
- Inventor: Jayakrishna Guddeti , Binata Bhattacharyya
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Nicholson De Vos Webster & Elliott, LLP
- Main IPC: G06F13/24
- IPC: G06F13/24 ; G06F1/32 ; G06F9/44

Abstract:
An apparatus and method is described herein for providing an early wake scheme before spawning a new thread. An early wake indication may be provided an amount of time, which may include an amount of time to perform a demotion from a current power state to a lower power state that is closer to an active power state, before a new thread is to be spawned and executed on a processing element (e.g., core or thread). Upon encountering the spawn of the new thread, such as a helper thread, the processing element may further transition from the lower power state to an active power state. The new thread may be executed on the processing element without incurring the latency associated with execution of the new thread waiting for the demotion from the current power state to an active power state after the spawn of the new thread.
Public/Granted literature
- US20150192985A1 APPARATUS, METHOD, AND SYSTEM FOR EARLY DEEP SLEEP STATE EXIT OF A PROCESSING ELEMENT Public/Granted day:2015-07-09
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