OpenVPN Speed
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Just out of curiosity my line only get around 100-130mbits/s iperf with TCP and 300mbits/s iperf with UDP data is that about right for everyone else? Theoretically i thought it to be closer to 1Gbit/s as it is a 1Gbit/s line. I think my CPU might be limiting it as a single core based on what others have been saying is causing the issue.
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@wakson005 I have a customer with a pfsense in their company (openvpn client) and a linux in the cloud (openvpn server), and last year I spent some time investigatigating performance in VPN when we run some backups at night.
I had to play with fast-io, sndbuf/rcvbuf and txqueuelen on linux, and UDP Fast I/O and Send/Receive Buffer on pfsense, to improve performance.
Maybe these links could be useful for you:well, I tried to put two links here that helped me, but couldn't post because the message was flagged as a spam :(
but you can search on google:
- openvpn ticket #461 Change default sndbuf and rcvbuf values
- Why OpenVPN is so slow? (cool story) lowendtalk
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Thanks really thankful for this :) will look into it.