Dev Tools · 1h ago
V.E.L.O.C.I.T.Y.-OS JIT Compiles x86-64 Machine Code for Scalar Loops
The V.E.L.O.C.I.T.Y.-OS project now compiles scalar AST blocks directly into x86-64 machine instructions at runtime, bypassing closure dispatch overhead. The JIT detector identifies pure scalar operations and emits raw machine code into executable memory pages. This optimization aims to make scalar loops run faster than native Rust closures.
Meridian48 take
While impressive as a hobby OS project, the performance claims lack independent benchmarks and the approach is highly specialized for niche use cases.
Read the full reporting
V.E.L.O.C.I.T.Y.-OS: The x86-64 Machine-Code JIT & SCEV-Lite (Part 6) →
DEV Community
jit-compileroperating-system