from Hacker News

Linux kernel WireGuard can go 'fast' on decent hardware

by zdw on 6/17/25, 12:34 PM with 8 comments

• by Octoth0rpe on 6/17/25, 12:50 PM

  This mirrors my anecdata on consumer (<$150) wifi router hardware. I recently upgraded my home router specifically for wireguard and it's been 5x faster than openvpn.

• by hexmiles on 6/17/25, 1:17 PM

  In addition to been faster it is also the only vpn that reliably handle roaming, without interrupting active connections.

• by justincormack on 6/17/25, 1:05 PM

  My laptop can run chacha20 at 2GB/s on a single core. Encryption performance hasnt really been an issue for a long time. Most VPNs will be running AES128 that has hardware support and should be even faster.

• by lotharcable on 6/17/25, 2:03 PM

  Used 10GbE ethernet components are cheap on ebay.

  I built a 10GbE 'switch' by buying 2 4 port SPI+ PCIE cards off of Ebay and then joining them together with a conventional Linux Br0 bridge on a old Intel gaming machine. Had no problem keeping up with line speed.

  I didn't test wireguard with it, but it should work pretty effectively for testing what speed it can get up to.