Invention Grant
- Patent Title: System and method for enabling turbo mode in a processor
- Patent Title (中): 用于在处理器中启用turbo模式的系统和方法
-
Application No.: US13213833Application Date: 2011-08-19
-
Publication No.: US08775837B2Publication Date: 2014-07-08
- Inventor: David Dice , Nir N. Shavit , Virendra J. Marathe
- Applicant: David Dice , Nir N. Shavit , Virendra J. Marathe
- Applicant Address: US CA Redwood
- Assignee: Oracle International Corporation
- Current Assignee: Oracle International Corporation
- Current Assignee Address: US CA Redwood
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F1/00 ; G06F15/00 ; G06F9/46

Abstract:
The systems and methods described herein may enable a processor core to run at higher speeds than other processor cores in the same package. A thread executing on one processor core may begin waiting for another thread to complete a particular action (e.g., to release a lock). In response to determining that other threads are waiting, the thread/core may enter an inactive state. A data structure may store information indicating which threads are waiting on which other threads. In response to determining that a quorum of threads/cores are in an inactive state, one of the threads/cores may enter a turbo mode in which it executes at a higher speed than the baseline speed for the cores. A thread holding a lock and executing in turbo mode may perform work delegated by waiting threads at the higher speed. A thread may exit the inactive state when the waited-for action is completed.
Public/Granted literature
- US20130047011A1 System and Method for Enabling Turbo Mode in a Processor Public/Granted day:2013-02-21
Information query