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[xafizoff]

tcpkali -T20s -r 10000 -c 50 --first-message "N2O," -m PING --ws 127.0.0.1:3000/ws/static/index.html
Destination: [127.0.0.1]:3000
Interface lo address [127.0.0.1]:0
Using interface lo to connect to [127.0.0.1]:3000
Ramped up to 50 connections.
Total data sent:     95.5 MiB (100175973 bytes)
Total data received: 28.3 MiB (29665440 bytes)
Bandwidth per channel: 1.038⇅ Mbps (129.8 kBps)
Aggregate bandwidth: 11.862↓, 40.055↑ Mbps
Packet rate estimate: 23925.7↓, 40424.5↑ (1↓, 1↑ TCP MSS/op)
Test duration: 20.0078 s.

Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz
4G RAM