On 11/5/2010 3:24 PM, Orion Poplawski wrote: > On 11/05/2010 12:59 PM, Auke Kok wrote: >> On 11/04/10 08:22, Orion Poplawski wrote: >>> Could someone comment on https://bugzilla.redhat.com/show_bug.cgi?id=497167 >>> - >>> powertop shouldn't recommend ondemand when using inappropriate cpufreq >>> drivers >>> >>> On my P4 system, powertop 1.13 recommends: >>> >>> Suggestion: Enable the ondemand cpu speed governor for all processors via: >>> echo ondemand> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor >>> >>> Which appears to be a bad suggestion in this case. >> perhaps, but, why are you not using the proper cpufreq drivers? >> >> Auke > What are the proper cpufreq drivers? > > processor : 0 > vendor_id : GenuineIntel > cpu family : 15 > model : 3 > model name : Intel(R) Pentium(R) 4 CPU 3.00GHz > stepping : 4 > cpu MHz : 3000.000 > cache size : 1024 KB > physical id : 0 > siblings : 2 > core id : 0 > cpu cores : 1 > apicid : 0 > initial apicid : 0 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 5 > 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 constant_tsc pebs > bts pni dtes64 monitor ds_cpl cid xtpr > bogomips : 5984.09 > clflush size : 64 > cache_alignment : 128 > address sizes : 36 bits physical, 32 bits virtual > power management: > > From what I gather in the bug, p4-clockmod is the proper module to load, but > that ondemand is not compatible with it. >
p4-clockmod will not save you power... I'd strongly against using it. If your firmware does not expose any other P states, then your CPU only really runs at 1 frequency.... _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
