JIT: so you want to be faster than an interpreter on modern CPUs…

Hi Since my previous blog entry about JIT compiler for PostgreSQL, sadly not much happened due to a lack of time, but still some things were done (biggest improvement was the port to ARM64, a few optimizations, implementing more opcodes…). But I am often asking myself how to really beat the interpreter… And on “modern” CPUs, …

Look ma, I wrote a new JIT compiler for PostgreSQL

Sometimes, I don’t know why I do things. It’s one of these times. A few months ago, Python 3.13 got its JIT engine, built with a new JIT compiler construction methodology (copy-patch, cf. research paper). After reading the paper, I was sold and I just had to try it with PostgreSQL. And what a fun …