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Linux utility to bench mark clock speed of CPU

I have a Linux PC with a 3.4 GHz CPU. I must check this processor to see if it actually runs at that speed. Is there a benchmark available? I ran sysbench but it only provides time of completion, and I must find the maximum (actual) clock rate.

1 Answer

Use the command:

To know all your CPU Specs:
To get the specific frequency of your CPU use the command with a grep like so:
lscpu | grep MHz

It will give you output like:
CPU MHz:               2723.789

To see realtime CPU speeds fluctuation use :
watch -n1 "lscpu | grep MHz | awk '{print $1}'";

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