linux - Getting TSC frequency from /proc/cpuinfo -

linux - Getting TSC frequency from /proc/cpuinfo -

i want know tsc frequency on linux system. reading /proc/cpuinfo different frequencies in lines "model name" , "cpu mhz". example, in core i7 4 ht cores got:

model name : intel(r) core(tm) i7-2600k cpu @ 3.40ghz cpu mhz : 1600.000

which right tsc frequency? 3.4 ghz or 1.6 ghz?

i´m assuming new processors, variable tsc freq not problem.

is "cpu mhz" current frequency of processor? mean, can value alter according cpu load?

edited: made simple programme compute tsc frequency (using long times measured time() ), , got 3502 mhz (aproximately), in 3.4 ghz machine. either linux time() function not exact, or tsc faster claimed 3.4 ghz.

so, knows if /proc/cpuinfo reliable?

exactly same problem under link below: measured tsc 3502 cpu frequency 3400mhz

https://software.intel.com/en-us/forums/topic/284137

resolved turning off automatic over-clocking in bios

linux cpu