HI,
We are having some performance issues with NEAppProxyProvider based per-app VPN. With VPN in between the download speed is 30% of the max speed without VPN is picture. We did confirm from the Wireshark IO Graphs that the actual link speed between client and VPN server is also almost 30% of the normal link speed. VPN Server and the client are on the same local network for performance testing so very minimal latency . Any idea/suggestions to improve this further or is the limitation of NEAppProxyProvider stack?
We thought this might be due to the fact that while writing the received data back to the application using "NEAppProxyTCPFlow's writeData" we are using to write just one data chunk (as this might need multiple kernel writes) of our protocol (~1500 bytes) and not more. We tried to write the multiple chunks equal to 4096 bytes instead to TCP flow to confirm if this might be the issue but does not help.
Thanks.