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.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/built-from-africa/the-day-the-language-became-the-bottleneck-4dmn |
| Publication time | Wed, 27 May 2026 04:55:49 +0000 |
| Retrieval time | 2026-05-27T05:07:56.817Z |
| Last seen | 2026-05-27T05:07:56.817Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | epXZKLvevxeM |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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