[Openvpn-devel] Wintun performance results

[Илья Шипицин]

it will most probably get lost in mailing list.
can we add it to https://openvpn.net website ? something like "performance
testing" with full configs provided ?

ср, 15 мая 2019 г. в 18:49, Lev Stipakov <lstipakov at gmail.com>:

> Hi guys,
>
> I made openvpn3 (required changes will be incorporated into main branch at
> some point) work with wintun and did performance testing in AWS.
>
> Client:    c5.xlarge, Windows Server 2016, patched openvpn3 test client
> and OpenVPN Connect 2.7.1.103 (uses tap-windows6, based on openvpn3).
>
> Server:  c5.xlarge, Ubuntu 18.04, openvpn 2.4.4
>
> Client and server instances are in the same VPC and placement group.
>
> iPerf3 running on server:
>
> > iperf3 -s -B 0.0.0.0 -V
>
> iPerf3 running on client:
>
> > iperf3 -c 10.8.0.1 -V (server VPN address)
> > iperf3 -c 10.0.0.18 -V (server VPC address)
>
> Results:
>
> - no vpn
>
> [ ID] Interval           Transfer     Bandwidth
> [  4]   0.00-10.00  sec  8.67 GBytes  7.45
> Gbits/sec                  sender
> [  4]   0.00-10.00  sec  8.67 GBytes  7.45
> Gbits/sec                  receiver
> CPU Utilization: local/sender 61.4% (5.6%u/55.8%s), remote/receiver 33.9%
> (1.7%u/32.2%s)
>
> - tap-windows6
>
> [ ID] Interval           Transfer     Bandwidth
> [  4]   0.00-10.00  sec   404 MBytes   339
> Mbits/sec                  sender
> [  4]   0.00-10.00  sec   404 MBytes   339
> Mbits/sec                  receiver
> CPU Utilization: local/sender 4.6% (0.3%u/4.3%s), remote/receiver 21.4%
> (2.2%u/19.2%s)
>
> - wintun
>
> [ ID] Interval           Transfer     Bandwidth
> [  4]   0.00-10.00  sec   536 MBytes   449
> Mbits/sec                  sender
> [  4]   0.00-10.00  sec   536 MBytes   449
> Mbits/sec                  receiver
> CPU Utilization: local/sender 2.9% (0.1%u/2.8%s), remote/receiver 10.1%
> (0.7%u/9.3%s)
>
> As you see, wintun performs 30% better comparison to tap-windows6 and
> incurs significantly less CPU usage.
>
> --
> -Lev
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