On Thursday 30 December 2010 03:16:05 Bill Longman wrote: > On Wed, Dec 29, 2010 at 4:43 PM, Mick <michaelkintz...@gmail.com> wrote: > > Just a wild guess: are you running some desktop applet that manages the > > cpu > > frequency and is stuck on manual with a low setting? > > > > I have the i7 Q 720 @ 1.60GHz, which is supposedly go up to 2.8G with > > turbo boost, but can't say that I have ever seen it going that high ... > > not sure if > > there's a setting somewhere I should tweak. This is from cpuinfo: > > > > ========================= > > $ cat /proc/cpuinfo > > processor : 0 > > vendor_id : GenuineIntel > > cpu family : 6 > > model : 30 > > model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz > > stepping : 5 > > cpu MHz : 931.000 > > cache size : 6144 KB > > physical id : 0 > > siblings : 8 > > core id : 0 > > cpu cores : 4 > > apicid : 0 > > initial apicid : 0 > > fpu : yes > > fpu_exception : yes > > cpuid level : 11 > > wp : yes > > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > > mca cmov > > pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx > > rdtscp lm > > constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc > > aperfmperf > > pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 > > sse4_2 > > popcnt lahf_lm ida dts tpr_shadow vnmi flexpriority ept vpid > > bogomips : 3192.42 > > clflush size : 64 > > cache_alignment : 64 > > address sizes : 36 bits physical, 48 bits virtual > > power management: > > ========================= > > As you can see power management is also blank. > > > > These are my frequencies: > > > > $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_* > > 1597000 1596000 1463000 1330000 1197000 1064000 931000 > > conservative userspace powersave ondemand performance > > 931000 > > acpi-cpufreq > > ondemand > > 1597000 > > 931000 > > <unsupported> > > > > PS. Any ideas what makes that turbo thingy kick in? > > The only thing that runs at boot is cpufrequtils and here is the config for > it:
I do not have cpufreutils installed, but use the ondemand governor as a default. http://thread.gmane.org/gmane.linux.gentoo.user/227247 > I can see gkrellm get its governor changed but I cannot override the max > freq. How can I tell what the BIOS is reporting? Here is what dmidecode > tells me about the CPU: > > Handle 0x0004, DMI type 4, 42 bytes > Processor Information > Socket Designation: CPU 1 > Type: Central Processor > Family: <OUT OF SPEC> > Manufacturer: Intel > ID: 52 06 02 00 FF FB EB BF > Version: Intel(R) Core(TM) i7 CPU M 620 @ 2.67GH > Voltage: 0.0 V > External Clock: 533 MHz > Max Speed: 4000 MHz > Current Speed: 2666 MHz <-- interesting!--> > Status: Populated, Enabled > Upgrade: Other > L1 Cache Handle: 0x0005 > L2 Cache Handle: 0x0006 > L3 Cache Handle: 0x0007 > Serial Number: To Be Filled By O.E.M. > Asset Tag: To Be Filled By O.E.M. > Part Number: To Be Filled By O.E.M. > Core Count: 2 > Core Enabled: 1 > Thread Count: 2 > Characteristics: > 64-bit capable This is what my i7 Q is showing: Handle 0x0005, DMI type 4, 42 bytes Processor Information Socket Designation: U2E1 Type: Central Processor Family: <OUT OF SPEC> Manufacturer: Intel ID: E5 06 01 00 FF FB EB BF Version: CPU Version Voltage: 3.3 V External Clock: 133 MHz Max Speed: 4096 MHz <--my max speed with turbo should be 2.8GHz?--> Current Speed: 1600 MHz <--my max speed without turbo--> Status: Populated, Enabled Upgrade: ZIF Socket L1 Cache Handle: 0x0006 L2 Cache Handle: 0x0007 L3 Cache Handle: 0x0008 Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Core Count: 4 Core Enabled: 4 Thread Count: 8 Characteristics: 64-bit capable My turbo reading leads me to think that the dmidecode is not necessarily reporting what the CPU can do. -- Regards, Mick
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