EXPERT

Production Profiling, Memory Allocators & Tuning

Tune jemalloc vs mimalloc, eliminate bounds checks safely, and analyze cache miss bottlenecks with cargo-flamegraph and PMUs. Part of the free Rust Systems & AI Academy — every lesson below is open to everyone, no signup required.

2 lessons290 XP~34 min total100% free

// LESSONS IN THIS MODULE

  1. 01Memory Allocator Tuning: jemalloc vs mimalloc16 min · 140 XP

    Why the System Allocator Destroys Scalability The standard system allocator (glibc ptmalloc on Linux) uses centralized arenas that suffer severe lock...

  2. 02Eliminating Bounds Checks Safely & CPU PMU Profiling18 min · 150 XP

    The Cost of Runtime Bounds Checks To guarantee memory safety, Rust automatically inserts bounds checks ( if index >= len { panic!() } ) on slice index...

Explore the full Rust Systems & AI Academy