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zjcim
n00b
Joined: 17 Mar 2007
Posts: 71
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 Posted: Sat Mar 31, 2007 2:15 am Post subject: [solved]cpu frequency scaling problem |
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i checked /sys/devices/system/cpu/cpu0 ,there is nothing
Kernel config is
| Code: | CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=m
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=m
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set |
Last edited by zjcim on Sat Mar 31, 2007 3:06 pm; edited 1 time in total |
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zjcim
n00b
Joined: 17 Mar 2007
Posts: 71
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| Posted: Sat Mar 31, 2007 3:32 am Post subject: |
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| Code: | [*] CPU Frequency scaling â â
â â [ ] Enable CPUfreq debugging â â
â â <M> CPU frequency translation statistics â â
â â [ ] CPU frequency translation statistics details â â
â â Default CPUFreq governor (userspace) ---> â â
â â <*> 'performance' governor â â
â â <M> 'powersave' governor â â
â â --- 'userspace' governor for userspace frequency scaling â â
â â <M> 'ondemand' cpufreq policy governor â â
â â <M> 'conservative' cpufreq governor â â
â â --- CPUFreq processor drivers â â
â â <M> ACPI Processor P-States driver â â
â â < > AMD Mobile K6-2/K6-3 PowerNow! â â
â â < > AMD Mobile Athlon/Duron PowerNow! â â
â â < > AMD Opteron/Athlon64 PowerNow! â â
â â < > Cyrix MediaGX/NatSemi Geode Suspend Modulation â â
â â <M> Intel Enhanced SpeedStep â â
â â [*] Use ACPI tables to decode valid frequency/voltage pairs â â
â â [ ] Built-in tables for Banias CPUs â â
â â <M> Intel Speedstep on ICH-M chipsets (ioport interface) â â
â â <M> Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface) |
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zjcim
n00b
Joined: 17 Mar 2007
Posts: 71
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| Posted: Sat Mar 31, 2007 3:05 pm Post subject: |
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| Code: | CONFIG_X86_SPEEDSTEP_ICH: â
â â
â This adds the CPUFreq driver for certain mobile Intel Pentium III â
â (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all â
â mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2, â
â ICH3 or ICH4 southbridge. |
mine is Pentium III-M (Tualatin)
first :modprobe acpi-cpufreq (path:/lib/modules/<kernel-version>/kernel/arch/i386/kernel/cpu/cpufreq/)
then /etc/init.d/powernowd start ,all ok
optional:emerge cpufrequtilsï¼run cpufreq-info to check which mode your cpu support
you can select cpu scaling GOV. ,eg ondemand ,userspace ,performance |
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