The Day the Language Became the Bottleneck
The article discusses the challenges faced when scaling a game engine built in Go, which struggled with garbage collection and latency issues. To address these problems, the core event loop was rewritten in Rust, resulting in significant performance improvements. The author reflects on the lessons learned from the transition and suggests a more cautious approach for future language changes.
- ▪The original game engine was built in Go, but faced latency issues under high load.
- ▪After rewriting the core in Rust, latency dropped significantly and memory usage improved.
- ▪The author advises prototyping language changes on a smaller scale to avoid major outages.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3942594) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } pretty ncube Posted on May 27 The Day the Language Became the Bottleneck #webdev #programming #rust #performance The Problem We Were Actually Solving It wasnt supposed to be a language swap. We had built the Treasure Hunt Engine on Go 1.20, using channels and sync.Pool to keep each players state off the GC. At 100k concurrent hunters, the p99 latency sat at 34 ms and allocations were 42 MB/s.
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