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On Wednesday 29 December 2010 20:51:05 Bill Longman wrote: |
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> > Yeah, the cpufreq utils show all the relevant information. I use the |
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> > acpi-cpufreq driver and when I didn't use it nothing happened. |
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> > cpufreq-aperf shows each CPU at 1.2GHz. I'll look at the EIST in BIOS, |
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> > too. Thanks for the pointers. |
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> |
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> Here's an interesting item: |
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> |
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> 12:41:00# cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit |
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> 1199000 |
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> |
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> which sort of jives with the "asserted by call to hardware" in the |
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> cpufreq-info section: |
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> analyzing CPU 3: |
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> driver: acpi-cpufreq |
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> CPUs which run at the same hardware frequency: 0 1 2 3 |
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> CPUs which need to have their frequency coordinated by software: 3 |
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> maximum transition latency: 10.0 us. |
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> hardware limits: 1.20 GHz - 2.67 GHz |
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> available frequency steps: 2.67 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz, 2.27 |
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> GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz, 1.33 GHz, |
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> 1.20 GHz |
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> available cpufreq governors: conservative, ondemand, userspace, |
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> powersave, performance |
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> current policy: frequency should be within 1.20 GHz and 1.20 GHz. |
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> The governor "performance" may decide which speed to use |
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> within this range. |
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> current CPU frequency is 1.20 GHz (asserted by call to hardware). |
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> cpufreq stats: 2.67 GHz:0.25%, 2.67 GHz:0.01%, 2.53 GHz:0.01%, 2.40 |
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> GHz:0.01%, 2.27 GHz:0.01%, 2.13 GHz:0.01%, 2.00 GHz:0.01%, 1.87 GHz:0.01%, |
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> 1.73 GHz:0.01%, 1.60 GHz:0.01%, 1.47 GHz:0.01%, 1.33 GHz:0.01%, 1.20 |
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> GHz:99.61% (28) |
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> |
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> So, why are there micro-spikes of higher frequencies in the above stats? |
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> The stats section says there are only five transitions. |
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|
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Just a wild guess: are you running some desktop applet that manages the cpu |
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frequency and is stuck on manual with a low setting? |
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|
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I have the i7 Q 720 @ 1.60GHz, which is supposedly go up to 2.8G with turbo |
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boost, but can't say that I have ever seen it going that high ... not sure if |
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there's a setting somewhere I should tweak. This is from cpuinfo: |
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|
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========================= |
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$ cat /proc/cpuinfo |
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processor : 0 |
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vendor_id : GenuineIntel |
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cpu family : 6 |
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model : 30 |
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model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz |
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stepping : 5 |
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cpu MHz : 931.000 |
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cache size : 6144 KB |
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physical id : 0 |
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siblings : 8 |
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core id : 0 |
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cpu cores : 4 |
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apicid : 0 |
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initial apicid : 0 |
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fpu : yes |
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fpu_exception : yes |
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cpuid level : 11 |
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wp : yes |
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flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov |
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pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm |
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constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf |
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pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 |
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popcnt lahf_lm ida dts tpr_shadow vnmi flexpriority ept vpid |
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bogomips : 3192.42 |
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clflush size : 64 |
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cache_alignment : 64 |
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address sizes : 36 bits physical, 48 bits virtual |
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power management: |
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========================= |
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As you can see power management is also blank. |
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|
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These are my frequencies: |
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|
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$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_* |
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1597000 1596000 1463000 1330000 1197000 1064000 931000 |
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conservative userspace powersave ondemand performance |
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931000 |
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acpi-cpufreq |
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ondemand |
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1597000 |
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931000 |
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<unsupported> |
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|
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PS. Any ideas what makes that turbo thingy kick in? |
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-- |
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Regards, |
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Mick |
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