Use Leshan library to simulate several clients about leshan

[jvermillard]

About thread limitation, using https://github.com/golioth/xk6-coap, which is Go-based (a similar solution to Java 21 virtual threads), will overcome this (with some extra benefits of the k6 performance framework)

Another solution for the number of ports is to run multiple interfaces on the client machine because the 16-bit port limitation is a per-interface limitation. I wonder if you can do this by running one docker container for the server and multiple docker containers for the client and keeping the traffic in the docker network.

Also, you can get more ports per interface by changing this kernel parameter: /proc/sys/net/ipv4/ip_local_port_range
Example: echo 10000 64000 > /proc/sys/net/ipv4/ip_local_port_range

[jvermillard]

Yes you are right. When I need to do these kinds of tests I often need to simulate the CoAP part (for example the registration) and also use some HTTP API to verify things on the server or trigger more commands like LWM2M reads. So that's why I'm exploring this way of load testing CoAP/LWM2M servers.

[sbernard31]

About thread limitation, using https://github.com/golioth/xk6-coap, which is Go-based (a similar solution to Java 21 virtual threads), will overcome this (with some extra benefits of the k6 performance framework)

Tell, me If I misunderstood : this is an alternative of "Using Leshan library to simulate several clients", if you use it then you don't use Leshan client at all ?