>>> Emerging : portage://net-misc/iperf-3.21:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-libs/cJSON-1.7.19
             │           └─ file ─┤ 347.90 Kb  	 cJSON-1.7.19.tar.gz
             │ download  portage://net-misc/iperf-3.21
             │           └─ file ─┤ 694.37 Kb  	 iperf-3.21.tar.gz

Total: 2 actions (2 downloads), grouped into 1 step.
       1.02 Mb to be downloaded.