WelcomeWelcome | FAQFAQ | DownloadsDownloads | WikiWiki

Author Topic: Cpu frequency scaling basics  (Read 20804 times)

Offline 4-stroke

  • Jr. Member
  • **
  • Posts: 72
Re: Cpu frequency scaling basics
« Reply #30 on: March 17, 2010, 12:53:02 AM »
Code: [Select]
tc@box:~$ /proc/acpi/processor/CPU0/cat info
processor id:            0
acpi id:                 0
bus mastering control:   no
power management:        no
throttling control:      no
limit interface:         no

tc@box:/proc/acpi/processor/CPU0$ cat limit
<not supported>

tc@box:/proc/acpi/processor/CPU0$ cat throttling
<not supported>

tc@box:/proc/acpi/processor/CPU0$ cat power
active state:            C0
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 2000000000 usec
states:
    C1:                  type[C1] promotion[--] demotion[--] latency[000] usage[00000000] duration[00000000000000000000]
Code: [Select]
tc@box:/proc/acpi/processor/CPU0$ lsmod
Module                  Size  Used by    Not tainted
vfat                    5652  0
fat                    29692  1 vfat
cpufreq_ondemand        2928  1
powernow_k8             8676  0
freq_table              1208  2 cpufreq_ondemand,powernow_k8
oss_usb                92044  1
oss_via823x             7196  1
osscore               509140  4 oss_usb,oss_via823x
rt73usb                13580  0
rt2x00usb               4360  1 rt73usb
rt2x00lib              14536  2 rt73usb,rt2x00usb
rfkill                  4012  2 rt2x00lib
mac80211               82100  2 rt2x00usb,rt2x00lib
cfg80211               21604  2 rt2x00lib,mac80211
pcmcia                 13964  0
firmware_class          3188  2 rt2x00lib,pcmcia
squashfs               11732 55
yenta_socket           13336  2
scsi_wait_scan           260  0
rsrc_nonstatic          5744  1 yenta_socket
parport_pc             18352  0
via_rhine              12476  0
parport                18768  1 parport_pc
wmi                     2952  0
battery                 5976  0
pcmcia_core            16976  3 pcmcia,yenta_socket,rsrc_nonstatic
ac                      1732  0

Same here basically. I know it works though, otherwise my fan runs on full tilt all the time.
A learning experience is one of those things that say, "You know that thing you just did? Don't do that." - Douglas Adams

Offline bmarkus

  • Administrator
  • Hero Member
  • *****
  • Posts: 7003
    • My Community Forum
Re: Cpu frequency scaling basics
« Reply #31 on: March 17, 2010, 12:59:06 AM »
Thanks for the info. At the moment I'm lost :(
Béla
Ham Radio callsign: HA5DI

"Amateur Radio: The First Technology-Based Social Network."

Offline 4-stroke

  • Jr. Member
  • **
  • Posts: 72
Re: Cpu frequency scaling basics
« Reply #32 on: March 17, 2010, 01:24:02 AM »
Mine's a "Mobile". There's probably something different with it.

Code: [Select]
tc@box:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 8
model name      : Mobile AMD Sempron(tm) Processor 2800+
stepping        : 2
cpu MHz         : 800.000
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext 3dnowext 3dnow up lahf_lm
bogomips        : 1601.67
clflush size    : 64
power management: ts fid vid ttp
A learning experience is one of those things that say, "You know that thing you just did? Don't do that." - Douglas Adams

Offline curaga

  • Administrator
  • Hero Member
  • *****
  • Posts: 10040
Re: Cpu frequency scaling basics
« Reply #33 on: March 17, 2010, 01:36:25 AM »
Not all desktop cpus support freq scaling, and especially not all desktop boards.
The only barriers that can stop you are the ones you create yourself.