КАК IF УБИВАЕТ ПЕРФОРМАНС: Твой процессор тебя ненавидит | Branch Predictor

Telegram channel: https://t.me/mrteamlead Support the channel: https://boosty.to/mrteamlead 🚀 My Rust course (Second Stream): https://blazing.academy/ Why can the same Rust code run twice as fast or slow? Today we'll explore one of the most insidious topics in low-level optimization—Branch Predictor. We'll see how a simple if statement can send a modern processor into a panic, forcing it to flush the entire instruction pipeline. We'll learn what speculative execution is, why the CPU frontend "guesses" your future, and how to force the Rust compiler to collapse your code to the fastest possible state without branches. That's the basics, folks. Sit back and let's get started figuring out why your CPU hates you (and how to fix it). #rust #programming #cpu #performance #computerscience #science #mrteamlead #backend #asm #branchpredictor #asm #backend #computer #coding