Hi all,
I have a laptop with a mobile pentium 4 2.8 ht as we can see from cat /proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Mobile Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 9
cpu MHz : 2788.302
cache size : 512 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
bogomips : 5505.02
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Mobile Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 9
cpu MHz : 2788.302
cache size : 512 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
bogomips : 5570.56
I'd like to know why I can't have cpu throttling. :(
I'm using the 2.6.7 kernel in fedora core 2.
I can see that I do have the /sys/devices/system/cpu/cpu0/cpufreq/* files but if I restart cpuspeed or start dyncpu they hang and if I do a cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq, cat hangs too. And I can't kill them, even sending -9 signal!! :(
I tried loading the speedstep-ich and I have a ich based south bridge with no luch too. But I only got a module speedstep-ich not found. How do I know if the speedstep-ich is already compiled in kernel? and I can't find it with /sbin/lsmod but I do have the cpufreq files...
I could notice that I don't have the powersave as one of the available governors, I only have performance and userspace.
I also noticed that:
cat /proc/acpi/processor/CPU0/info processor id: 0 acpi id: 0 bus mastering control: yes power management: no throttling control: no limit interface: no
and if I do cat /proc/acpi/processor/CPU0/throttling it says: <not supported>
Why??
I'd like to be able to use cpu throttling so I can get longer battery usage and less heat.
Please, could you help me??
I don't know what information I could give you besides that. If I'm missing something, please let me know.
Thanks in advance.
Regards,
Francisco Figueiredo Jr.
