speedtest from asus-merlin.
./speedtest
usage:
speedtest_cli [1|0](download test enable|disable) [download thread number] [1|0](upload test enable|disable) [upload thread number] Range of thread number: 1 - 20
./speedtest 1 8 1 8
download = 0.58
download = 1.15
download = 1.65
download = 2.04
download = 2.79
download = 3.44
download = 3.67
download = 3.12
download = 2.23
download = 2.83
download = 3.40
download = 3.95
download = 3.41
download = 4.13
download = 4.81
download = 5.42
speedtest_cli: Download = 5.42 Mbit/s (693.67 Kbyte/s)
upload = 0.56
upload = 1.05
upload = 1.40
upload = 1.74
upload = 2.17
upload = 2.60
upload = 2.41
upload = 2.36
upload = 2.46
upload = 2.14
upload = 2.34
upload = 2.47
upload = 2.87
upload = 2.87
upload = 3.05
upload = 3.09
upload = 3.15
upload = 3.23
upload = 3.36
upload = 3.40
speedtest_cli: Upload = 3.39 Mbit/s (434.39 Kbyte/s)