Intel Corporation

Tahoe Research, Ltd.

Richard Quinzio

Rajeev D Muralidhar

Harinarayanan Seshadri

Youvedeep Singh

Christophe Fiat

Aymen Zayet

Vishwesh M Rudramuni

Illyas M Mansoor

Mingqiu Sun

Premanand Sakarda

Jian Sun

Yuyang Du

Yong Tong Chua

Sebastien Haezebrouck

Nicole Chalhoub

Methods and apparatus relating to platform power consumption reduction via power state switching are described. In one embodiment, control logic causes a processor to enter a first low power consumption state (e.g., S0ix) instead of a second low power consumption state (e.g., S3) based on whether a threshold time period exists between a first wake event (e.g., corresponding to a first one of one or more awake requests) and a second wake event (e.g., corresponding to a second one of the one or more awake requests). Other embodiments are also claimed and disclosed.

Platform power consumption reduction via power state switching

Various systems and methods for virtual CPU consolidation to avoid physical CPU contention between virtual machines are described herein. A processor system that includes multiple physical processors (PCPUs) includes a first virtual machine (VM) that includes multiple first virtual processors (VCPUs); a second VM that includes multiple second VCPUs; and a virtual machine monitor (VMM) to map individual ones of the first VCPUs to run on at least one of, individual PCPUs of a first subset of the PCPUs and individual PCPUs of a set of PCPUs that includes the first subset of the PCPUs and a second subset of the PCPUs, based at least in part upon compute capacity of the first subset of the PCPUs to run the first VCPUs, and to map individual ones of the second VCPUs to run on individual ones of the second subset of the PCPUs.

Virtual CPU consolidation to avoid physical CPU contention between virtual machines

Methods and apparatus relating to platform power consumption reduction via power state switching are described. In one embodiment, control logic causes a processor to enter a first low power consumption state (e.g., Six) instead of a second low power consumption state (e.g., S) based on whether a threshold time period exists between a first wake event (e.g., corresponding to a first one of one or more awake requests) and a second wake event (e.g., corresponding to a second one of the one or more awake requests). Other embodiments are also claimed and disclosed.

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Sophia Antipolis, France

Richard Quinzio