28 Feb
2008
28 Feb
'08
1:19 p.m.
On my Dell Laptop I quite regularly get lower than the available 2GHz under cpu MHz, it seems to be showing the speed the CPU is running at.
I monitor in Gnome with the CPU Frequency Scaling Monitor - this also allows me to set the speed of the CPUs, or have it run in "OnDemand" or "Performance" mode.
When I have KVM running on one core and compile code across the rest I get the full 2GHz
Jim.
On Thu, 2008-02-28 at 13:09 +0000, Chris G wrote:
On my system /proc/cpuinfo contains:-
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping : 6 cpu MHz : 1632.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 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 syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm bogomips : 4897.97 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping : 6 cpu MHz : 1632.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 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 syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm bogomips : 4895.38 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:Should I be seeing more than that 1632.000 value for cpu MHz or is the nominal 2.40GHz figure for Core 2 Duo 6600 just that a 'nominal' CPU speed?
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Kind Regards,
Jim