Scaling Infrastructure: The Edge, Horizontal Scale, and the Math Behind Them
Application-level fixes (kill the N+1, add the index) get you a long way, but…
Tag
#caching
16 posts
Backend Performance: Kill N+1, Add the Index, Cache What's Hot
Ask where a slow backend spends its time and the honest answer is almost always…
Redis — The In-Memory Data-Structure Store, End to End
Redis is one of the most-used pieces of infrastructure in the world — the fast…
Caching Patterns
Caching is why most teams adopt Redis: put a fast in-memory layer in front of a…
Design a URL Shortener (TinyURL/bit.ly)
A URL shortener looks trivial — map a long URL to a short code and redirect…
Scaling Pitfalls: Hotspots, Stampedes and Failure
A design that looks correct on the whiteboard can still collapse the first time…
Scaling Reads
Almost every system you will be asked to design is read-heavy. A social network…
Redis — Caching, Sessions, Pub/Sub
Redis is an in-memory data structure store that serves as a cache, message…
Redis — Caching, Sessions, Pub/Sub in Node.js
Why Redis for Node.js Redis is an in-memory data store that serves as a cache…
Cost Optimization for LLM Applications
Your LLM prototype costs $2/day. Your production system serving 10,000 users…
System Design Masterclass
System design is the skill that separates senior engineers from everyone else…
Scaling Reads — Caching, Replicas & CDN
Most real-world systems are read-heavy. Twitter serves 600K reads per second but…
Choosing Models & Building Production AI Apps
You have built prototypes. You have called APIs, written prompts, wired up RAG…
Deep Dive on Redis: Architecture, Data Structures, and Production Usage
“Redis is not just a cache. It’s a data structure server that happens to be…
Deep Dive on Caching: From Browser to Database
“There are only two hard things in Computer Science: cache invalidation and…
System Design Patterns for Scaling Reads
Most production systems are read-heavy. A typical web application sees 90-9…