𝗪𝗵𝘆 𝗜 𝗦𝘄𝗶𝘁𝗰𝗵𝗲𝗱 𝗧𝗼 𝗥𝘂𝘀𝘁 𝗦𝗼𝗼𝗻𝗲𝗿

𝗪𝗵𝘆 𝗜 𝗦𝘄𝗶𝘁𝗰𝗵𝗲𝗱 𝗧𝗼 𝗥𝘂𝘀𝘁 𝗦𝗼𝗼𝗻𝗲𝗿

Our Treasure Hunt Engine kept crashing. It stalled often. The config layer caused the bottleneck.

GC pauses reached 1.2 seconds. We allocated 10 million objects per second.

We tried to fix it with patches. We reused objects. We added caching. We tuned the GC. These fixes failed.

I rewrote the layer in Rust. Rust handles memory safely. It removes garbage collection pauses.

The results:

• Average latency dropped from 500ms to 100ms.
• Max latency dropped from 2s to 200ms.
• Allocations fell to near zero.
• The system handled double the load.
• Crashes stopped.

Do not waste time on small patches. If the language limits you, change the language. Learn the tool before you need it.

Source: https://dev.to/built-from-africa/why-i-still-regret-not-rewriting-our-server-in-rust-sooner-370j