一个Linux爱好者的2.6.11内核编译过程 （6）

Power management options (ACPI, APM) ---> 
[*] Power Management support 
[ ] Power Management Debug Support 
[ ] Software Suspend (EXPERIMENTAL) 
ACPI (Advanced Configuration and Power Interface) Support ---> 
APM (Advanced Power Management) BIOS Support ---> 
CPU Frequency scaling ---> 

ACPI (Advanced Configuration and Power Interface) Support ---> 
[*] ACPI Support 
这是一种电源管理方式，你可以看看你的BIOS是否支持。如果支持的话建议你选上这项 
[ ] Sleep States (EXPERIMENTAL) 
< > AC Adapter 
< > Battery 
<*> Button 捕获Power、Sleep、Lid（我也不知道这是什么按钮）等按钮是否按下，并做相应的动作 
<*> Video 集成在板上的显卡的ACPI支持，对有些板卡可能不起作用 
< > Fan 
<*> Processor 
<*> Thermal Zone 
< > ASUS/Medion Laptop Extras 
< > IBM ThinkPad Laptop Extras 
< > Toshiba Laptop Extras 
(0) Disable ACPI for systems before Jan 1st this year 
[ ] Debug Statements 
[*] Power Management Timer Support 

APM (Advanced Power Management) BIOS Support ---> 
< > APM (Advanced Power Management) BIOS support 
高级电源管理的支持，一般来说笔记本应该选上，台式机可以不选。 
[ ] Ignore USER SUSPEND 
[*] Enable PM at boot time 
[ ] Make CPU Idle calls when idle 
[ ] Enable console blanking using APM 
[ ] RTC stores time in GMT 按Unix的标准，硬件的时钟应该设为格林威治时间 
[ ] Allow interrupts during APM BIOS calls 
[*] Use real mode APM BIOS call to power off 

[*] CPU Frequency scaling 
这一选项允许改变CPU的主频，使CPU在低负荷或使用电池时降低主频，达到省电的目的。 
[ ] Enable CPUfreq debugging 
< > /proc/cpufreq interface (deprecated) 
Default CPUFreq governor (performance) ---> 
--- 'performance' governor 
<*> 'powersave' governor 
<*> 'userspace' governor for userspace frequency scaling 
[ ] /proc/sys/cpu/ interface (2.4. / OLD) 
<*> 'ondemand' cpufreq policy governor自动调节主频 
<*> CPU frequency table helpers 多数的CPU需要这一项来调节主频 
<*> ACPI Processor P-States driver 报告处理器的状态 
< > AMD Mobile K6-2/K6-3 PowerNow! 
< > AMD Mobile Athlon/Duron PowerNow! 
< > AMD Opteron/Athlon64 PowerNow! 
< > Cyrix MediaGX/NatSemi Geode Suspend Modulation 
<*> Intel Enhanced SpeedStep Intel的变频技术支持 
[ ] Use ACPI tables to decode valid frequency/voltage pairs 
--- Built-in tables for Banias CPUs 
< > Intel Speedstep on ICH-M chipsets (ioport interface) 
< > Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface) 
< > Intel Pentium 4 clock modulation 
< > nVidia nForce2 FSB changing 
< > Transmeta LongRun 
< > VIA Cyrix III Longhaul 
--- shared options 
[ ] /proc/acpi/processor/../performance interface (deprecated) 
[ ] Relaxed speedstep capability checks