CLAUDE CODE'S RENDERER IS MORE COMPLEX THAN A GAME ENGINE

Summary from the TLDR Dev newsletter

Through profiling, Claude Code was found to spend 70% of its time on `futex` calls and make 89,000 `sched_yield` calls, showing inefficient thread spinning rather than proper I/O waiting. Quantitatively, Claude Code executes billions of instructions per "frame" for text rendering and network I/O, an order of magnitude more than SM64 uses for its 3D world.