Hi,
On 29/01/2024 05:25, Tony He wrote:
Hi Antonio,
I'm using ovpn-dco which is backported to v4.14 based on your latest
code. My topology is:
LAN PC -- openwrt router running openvpn server -- WAN PC running openvpn client
Router is with two mips64 cores.
I use the iperf3 to test speed between LAN PC and WAN PC.
The result is sometime the performance is good(~280Mbps） while
sometimes is bad(~140Mbps).
When the performance is bad, one of two CPUs is 100% idle. When the
performance is good, two CPUs are busy. However， I don't see the issue
when ipsec is tested in the same test env. Two cores are always used
for ipsec. So , can ovpn-dco use all cpu cores to get max performance?
ovpn-dco uses more than core in order to perform different operations,
but more parallelism on traffic processing can definitely be implemented
(patches are welcome ;)).
Now it's hard to tell if what you are seeing is the result of this
implementation detail or something else, especially because in some
cases you get higher throughput.
Cheers,
--
Antonio Quartulli
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