Overall impression and interpreted Java

[igouy]

interpret[t]ed with no compilation
…
compile hot code on the fly and then execute

You could contrast jit and interpreted directly by showing timings for both default java and java -Xint.

[attractivechaos]

Good idea. I believe node can be run in --jitless mode (inherited through v8):

--jitless                   disable runtime allocation of executable memory

At least with this option, node becomes much slower. I will probably add this and also quickjs.

[igouy]

https://v8.dev/blog/jitless

I don't pretend to understand --jitless and --no-opt

[attractivechaos]

The timing with --jitless vs with --jitless --no-opt is nearly identical. I will assume --jitless turns off the JIT completely. Fabrice Bellard seems to do the same when evaluating v8.