https://sevenzip.osdn.jp/chm/cmdline/commands/bench.htm

Measures speed of the CPU and checks RAM for errors.

Syntax:

b [number_of_iterations] [-mmt{N}] [-md{N}] [-mm={Method}]

Examples:

7za b

runs benchmarking.

7za b -mmt1 -md26

runs benchmarking with one thread and 64 MB dictionary.

7za b 30

runs benchmarking with default settings for 30 iterations.

7za b -mm=*

runs complex 7-Zip benchmark

sysbench --test=cpu --cpu-max-prime=10000 run