Amithash Prasad wrote: > Can you try by configuring the kernel to have the powernow_k8 cpufreq > driver as a module, and insert it later on? Sure, done. And I can see a cpufreq/ sub-directory in each /sys/devices/system/cpu/cpuX/ now. Thanks. but why? Do the other governors not use a cpufreq/ sub-directory? However: I cannot see any significant power vs. performance benefits on my server system by using cpufreq. Can anyone suggest some config or /sys settings that might show such benefits? Thanks. > I have had a few issues when the drivers are compiled into the kernel. > > On Thu, Jun 11, 2009 at 10:25 AM, Randy Dunlap<randy.dunlap@xxxxxxxxxx> wrote: >> Hi, >> >> I'm trying to test some cpufreq governors. >> The target test system is an HP BladeCenter ProLiant BL685c G1. >> >> /proc/cpuinfo is at end of this email. >> >> I don't see a cpufreq/ directory in /sys/devices/system/cpu/cpuX/ at all. >> >> I have loaded 3 cpufreq driver modules: conservative, ondemand, and powersave; >> and the performance cpufreq driver is built into the kernel image and is >> the default. >> >> >> Am I doing something wrong? or does this CPU not work with cpufreq? >> >> Thanks, >> -- >> ~Randy >> LPC 2009, Sept. 23-25, Portland, Oregon >> http://linuxplumbersconf.org/2009/ >> >> >> /proc/cpuinfo: >> >> processor : 0 >> vendor_id : AuthenticAMD >> cpu family : 15 >> model : 65 >> model name : Dual-Core AMD Opteron(tm) Processor 8218 >> stepping : 2 >> cpu MHz : 2612.360 >> cache size : 1024 KB >> physical id : 0 >> siblings : 2 >> core id : 0 >> cpu cores : 2 >> apicid : 0 >> initial apicid : 0 >> 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 ht syscall nx mmxext fxsr_opt rdtscp lm 3dno >> wext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy >> bogomips : 5224.72 >> TLB size : 1024 4K pages >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 40 bits physical, 48 bits virtual >> power management: ts fid vid ttp tm stc >> >> processor : 1 >> vendor_id : AuthenticAMD >> cpu family : 15 >> model : 65 >> model name : Dual-Core AMD Opteron(tm) Processor 8218 >> stepping : 2 >> cpu MHz : 2612.360 >> cache size : 1024 KB >> physical id : 1 >> siblings : 2 >> core id : 0 >> cpu cores : 2 >> apicid : 2 >> initial apicid : 2 >> 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 ht syscall nx mmxext fxsr_opt rdtscp lm 3dno >> wext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy >> bogomips : 5223.81 >> TLB size : 1024 4K pages >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 40 bits physical, 48 bits virtual >> power management: ts fid vid ttp tm stc >> >> processor : 2 >> vendor_id : AuthenticAMD >> cpu family : 15 >> model : 65 >> model name : Dual-Core AMD Opteron(tm) Processor 8218 >> stepping : 2 >> cpu MHz : 2612.360 >> cache size : 1024 KB >> physical id : 0 >> siblings : 2 >> core id : 1 >> cpu cores : 2 >> apicid : 1 >> initial apicid : 1 >> 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 ht syscall nx mmxext fxsr_opt rdtscp lm 3dno >> wext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy >> bogomips : 5223.80 >> TLB size : 1024 4K pages >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 40 bits physical, 48 bits virtual >> power management: ts fid vid ttp tm stc >> >> processor : 3 >> vendor_id : AuthenticAMD >> cpu family : 15 >> model : 65 >> model name : Dual-Core AMD Opteron(tm) Processor 8218 >> stepping : 2 >> cpu MHz : 2612.360 >> cache size : 1024 KB >> physical id : 1 >> siblings : 2 >> core id : 1 >> cpu cores : 2 >> apicid : 3 >> initial apicid : 3 >> 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 ht syscall nx mmxext fxsr_opt rdtscp lm 3dno >> wext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy >> bogomips : 5223.80 >> TLB size : 1024 4K pages >> clflush size : 64 >> cache_alignment : 64 >> address sizes : 40 bits physical, 48 bits virtual >> power management: ts fid vid ttp tm stc >> ===== -- ~Randy LPC 2009, Sept. 23-25, Portland, Oregon http://linuxplumbersconf.org/2009/ -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
