From my tests v8 jitless was about 50% faster than QuickJS but still almost an order of magnitude slower than with JIT.

Note that I mistranscribed the numbers above: QuickJS was 18-24ms while v8 without warmup was 12-20ms (which I think is similar to jitless perf) and warmed jit was 2-4ms when I benchmarked a couple of years back. https://news.ycombinator.com/item?id=33793181

Thanks for the complexity warning. Sounds like I need to wait for an embedded JIT example using fixed executable range before I start playing around. But it would be fun to try and make Deno run inside it somehow, perhaps building on deno_runtime and hooking the http client user agent to make requests through Varnish. Deno's permission system should allow cleanly disabling unavailable functionality like access to the file system.

I see some examples that seem to use glibc but I was under the impression only musl binaries can be truly static? Can binaries built against glibc be used with TinyKVM?