Wanted to share this, perhaps I'm missing/misunderstanding something:
I was running a Ktor 2.0
testApplication
test with 100 async calls by a client . However, it started locking up quite quickly and not even sending the remaining calls to the server.
At first I thought this problem must be in my service. But in the end it even happened if the service did nothing.
I solved it by configuring the CIO engine for the client