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kotlinlang

Does Helidon have a request queue like Jetty (presumably) does?  I wonder if Helidon is more susceptible to burstiness, whereas Jetty's queue keeps the throughput more consistent.

I ask because the only built-in virtual thread executor has no thread cap.

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Moving to a thread...

I ask because because this service has a pretty sawtooth steady state usage.

Hmm. Could be that your service itself uses a bit of memory and the number of simultaneous requests being handled blows the limit?

So memory used not by loom stuff, but by things handling requests...