hashcat -b
hashcat (v4.2.1) starting in benchmark mode...
Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.
* Device #1: Not a native Intel OpenCL runtime. Expect massive speed loss.
You can use --force to override, but do not report related errors.
No devices found/left.
Started: Thu Sep 20 14:07:13 2018
Stopped: Thu Sep 20 14:07:13 2018