Invention Grant
- Patent Title: Controlling power state demotion in a processor
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Application No.: US16233297Application Date: 2018-12-27
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Publication No.: US11216276B2Publication Date: 2022-01-04
- Inventor: Eliezer Weissmann , Hisham Abu-Salah , Daniel Lederman , Nir Rosenzweig , Efraim Rotem , Esfir Natanzon , Yevgeni Sabin , Shay Levy
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Trop, Pruner & Hu, P.C.
- Main IPC: G06F9/30
- IPC: G06F9/30 ; G06F1/3234 ; G06F1/329 ; G06F1/3206 ; G06F1/324 ; G06F1/3203 ; G06F1/3287

Abstract:
In an embodiment, a processor for demotion includes a plurality of cores to execute instructions and a demotion control circuit. The demotion control circuit is to: for each core of the plurality of cores, determine an average count of power state break events in the core; determine a sum of the average counts of the plurality of cores; determine whether the average count of a first core exceeds a first demotion threshold; determine whether the sum of the average counts of the plurality of cores exceeds a second demotion threshold; and in response to a determination that the average count of the first core exceeds the first demotion threshold and the sum of the average counts exceeds the second demotion threshold, perform a power state demotion of the first core. Other embodiments are described and claimed.
Public/Granted literature
- US20200210184A1 CONTROLLING POWER STATE DEMOTION IN A PROCESSOR Public/Granted day:2020-07-02
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