Popular Scalability Articles

Scalability is the ability of a software system to handle growth without unacceptable performance degradation. Growth can mean more users, more requests, more data, more tenants, more background jobs, or more complex queries.

AWS Lambda concurrency is one of the most important concepts to understand before running serverless applications in production. Lambda can scale quickly, but that does not mean every downstream system can handle unlimited parallel requests.

Cloning is the first and often most practical way to scale a system: run more identical copies of the same application so more requests can be handled in parallel.

Caching is one of the most important patterns for building scalable systems. It reduces latency, lowers database load, absorbs traffic spikes, and helps systems serve repeated requests faster.