Tag

performance

All posts

Mastering the Durable Objects overloaded Error: Avoiding the 1,000-Requests-Per-Second Soft Limit and the Single-Thread Bottleneck

Durable Objects overloaded: The 1,000 req/s Limit

Published Jul 24, 2026

Cloudflare Durable Objects hit a 1,000 req/s soft limit, serialize on one thread, and can double-charge payments if alarm() retries aren't idempotent.

cloudflare durable-objects scaling performance

When Your Flutter App Only Stutters on First Launch: A Complete Guide to Shader Compilation Jank

Fixing Flutter Shader Compilation Jank

Published Jul 24, 2026

Shader jank only appears on real devices in release builds, never in debug. See the DevTools warning sign, and why SkSL warm-up broke in Flutter 3.32.

flutter performance rendering impeller