[brancz]

Thanks for submitting! We know HN has a sweet spot for LuaJIT, so we figured it would eventually end up here.

Quick summary: this post dives into the gory details of how we implemented an eBPF based profiler for LuaJIT.

Let us know if you have any questions on this, we’ll keep an eye out on comments!

[neomantra]

Very deep dive, thank you for sharing it all. So cool it traverses callbacks too.

[brancz]

Glad you liked it! Yeah, we worked with a customer who really needs this badly and has done some unspeakable things to get by until now.