5 ms·

cat /proc/cpuinfo

• nkurz 13y ago
  This would be simpler, but doesn't work if you are running a non-standard clock. /proc/cpuinfo gives you the nominal frequency, but turbostat gives you the actual. In the example below, the 3.79 GHz reported by turbostat is the actual speed and the 2.527 reported by /proc/cpuinfo is not. I think thermal throttling is another case where turbostat is correct but the kernel info is not. nate@centos:~$ cat /proc/cpuinfo | grep -i mhz cpu MHz : 1596.000 cpu MHz : 1596.000 cpu MHz : 1596.000 cpu MHz : 1596.000 cpu MHz : 2527.000 cpu MHz : 1596.000 cpu MHz : 1596.000 cpu MHz : 1596.000 cor CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6 2.82 3.75 3.79 2.92 0.57 93.69 0.00 0.00 0 0 0.29 2.76 3.79 0.26 1.24 98.21 0.00 0.00 0 7 0.11 3.02 3.79 0.45 1 3 0.14 2.45 3.79 0.14 0.56 99.16 1 6 0.03 2.79 3.79 0.25 2 1 0.06 3.07 3.79 0.12 0.26 99.56 2 5 0.05 2.85 3.79 0.13 3 2 0.05 2.81 3.79 21.88 0.23 77.84 3 4 21.83 3.78 3.79 0.11