TamoSoft Throughput Test is a free Windows-based utility; one of many network tools TamoSoft offers. It can test TCP and UDP simultaneously in both directions, or TCP by itself, supporting either IPv4 or IPv6. Once started, it continuously sends data streams and reports the upstream and downstream throughput values in Mbps, UDP packet loss percentage, and round-trip time. It gives a numeric readout and offers live chart views as well. You can also test with varying Quality of Service (QoS) settings too.
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