2 posts with tag systems-programming

• rust
• concurrency
• lock-free
• cache-coherence
• false-sharing
• data-layout
• memory-alignment
• ring-buffer
• systems-programming
• performance

How to lay out a shared Rust struct by who-touches-what - zoning fields by write owner and frequency, then padding the cross-core ones to avoid false sharing and prefetcher-induced contention.

• rust
• concurrency
• lock-free
• spsc
• ring-buffer
• cache-coherence
• false-sharing
• systems-programming
• performance
• scalability
• optimization

The opening post of a Low-Level Systems Design in Rust series, arguing that the biggest performance win is structural: replace a shared multi-producer cursor that serializes cores through cache-coherence traffic with one private single-writer SPSC ring per producer, converting quadratic writer contention into a cheap O(N) consumer sweep.