Win7의 Processor Power Management 개요

 Win7에서의 PPM(Processor Power Management)를 어떻게 구현하고 있는지에 대한 개요를 설명합니다.

 

 PPM(Processor Power Management)을 구현하는데, 다음과 같은 주요 구성 요소가 있습니다.

·         System firmware (ACPI BIOS)

·         Windows Power Policy

·         Windows kernel power manager

·         Windows processor drivers

 

  다음 그림은 PPM을 구현하는 주요 구성 요소 간의 관계를 설명합니다.

 

  Win7에서는 Processor(CPU)의 제조사와 종류에 따라 다른 processor 드라이버를 제공합니다.

다음 표를 참고하십시오.

 

. Windows 7 Processor Driver Support

CPU vendor	Supported processor model/family	Driver name
AMD	Opteron Turion 64 Athlon 64 Sempron Mobile Sempron	Amdk8.sys
AMD	Phenom	Amdppm.sys
Intel	Pentium 4 Mobile Pentium 4 processor that     supports Hyper-Threading Technology Pentium M Core family Celeron family Pentium family Atom family Xeon family	Intelppm.sys
VIA	C7-M processor	Viac7.sys
기타	Any processor not listed above	Processr.sys

 

 PPM(Processor Power Management)를 검증하는 도구(Tools)에는 다음과 같은 것들이 있습니다.

 

·         Windows Resource Monitor(작업관리자 ▶ 리소스 모니터)

This tool lets you view a quick summary of the processor usage versus the processor speed. This tool is included with Windows.

 

·         Windows Reliability and Performance Monitor(관리 도구 ▶성능 모니터)

This tool lets you view a plot of the current speed of each processor core against the processor usage. It also provides logging and graphical display capabilities. This tool is included with Windows.

 

·        Event Viewer(관리 도구 ▶ 이벤트 뷰어)

This tool lets you view entries in the system event log. The system event log includes entries that contain summary information about platform PPM capabilities and error messages that were logged when ACPI processor objects failed validation checks. This tool is included with Windows.

 

·        PowerCfg(명령 프롬프트 상에서 Powercfg 명령 실행)

This command-line tool lets you view or change the processor power policy, including power policy values that are not exposed in the Control Panel Power Options application. This tool is included with Windows.

 

·         Pwrtest(드라이버 개발용 WDK kit에 포함)

This command-line tool lets you view detailed information about system PPM capabilities and provides test and logging capabilities for multiple power management scenarios. This tool is included with the Windows Driver Kit (WDK).

ProcPowerMgmtWin7.docx