How to Design a Live Scoreboard Without Overloading Your Backend
A live scoreboard looks simple until traffic arrives. The product needs to show current match state,...
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A live scoreboard looks simple until traffic arrives. The product needs to show current match state,...

1. What Is the Thundering Herd Problem? The thundering herd problem (also called a cache...
How TopVideoHub replaced cache-invalidation polling with Postgres LISTEN/NOTIFY: a trigger, a Go rel

I turned on prompt caching for an agent I run all day, watched the next invoice, and the number went...
The problem A cache hit rate of 99% sounds like a solved problem. Most dashboards stop...
How we replaced short cache TTLs and polling with Postgres LISTEN/NOTIFY to invalidate watch pages,

Vendors publish a prompt-cache token minimum. Measured across LLM families, auto-cache needs 1.4–2.4x more than the docs say; Claude's explicit cache is exact.
You're building a Spring Boot app and notice session management is a bit sluggish. Why not offload...

GPT-5.6's two cost levers, measured: explicit breakpoints bill cached input at 10% of the rate, and not sending reasoning_effort bills 1.5x as much as none.
You're probably using Redis for caching in your Spring Boot app, right? Great choice. But I've seen...
In the competitive landscape of e-commerce and web development, speed is not just a luxury; it's a...
Stale data và cache stampede: vì sao TTL một mình không đủ và vì sao origin sập khi key hết...