Performance

Table of Contents Introduction The Appeal of Shortcuts When the Library Does Much More Than You Need (Bloat) The Invisible Weight on Performance: Where Libraries Really Affect the Service 4.1. Initialization Overhead 4.2. Unnecessary Memory Consumption 4.3. Abstractions That Hide Costs 4.4. Accumulated Latency in Microservices Transitive Dependencies: The Silent Domino Effect Updating Is Easy — Until It Isn’t How to Decide If It’s Worth Using a Lib Best Practices to Reduce Risks Conclusion 1. Introduction In modern development, it’s almost natural to turn to external libraries for productivity gains. They reduce rework, accelerate delivery, and allow teams to focus energy on what truly generates value. However, this decision, which seems simple and pragmatic at first, carries a frequently ignored consequence: each import brings with it a future cost, especially when it comes to production performance. ...