On 08.06.2018 12:13, David Sommerseth wrote:
First test, between two servers without OpenVPN: [ 4] 0.00-10.00 sec 120 MBytes 101 Mbits/sec sender [ 4] 0.00-10.00 sec 117 MBytes 98.1 Mbits/sec receiver
Second test, between OpenVPN interfaces: [ 4] 0.00-10.00 sec 33.3 MBytes 27.9 Mbits/sec sender [ 4] 0.00-10.00 sec 33.0 MBytes 27.7 Mbits/sec receiver
As you can see, OpenVPN has very bad network throughput values, compared to raw network values.
First of all, IIRC, the default iperf3 runs uses TCP. Your VPN tunnel runs over UDP (which normally is good). So you're comparing a little bit apples and oranges here.
No, I compare oranges with oranges: how fast will work application protocols if OpenVPN is used or OpenVPN not used for network layer. Application protocols are TCP-based, for example, FTP, HTTP. And I need good network throughput *for TCP-based protocols* when OpenVPN is used.
Try running the same iperf3 test outside the VPN tunnel with --udp. Does that give different results?
Yes, I see Bandwidth 99.1 Mbits/sec and Bandwidth 99.0 Mbits/sec But I need to see the same excellent values for TCP protocol too. This is possible with OpenVPN at all? What can be tuned in OpenVPN or in operating system? What is the root cause of such very low network throughput values then TCP-based protocols are used on top of OpenVPN connections? -- Best regards, Gena ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
