Perfomance & ScalingLesson 85Free preview

Node Performance

This lesson is part of Node.js · All levels

Summary

This lesson discusses application performance optimization: understanding event loops, avoiding block work on the main thread, and using caching. You also learn the techniques of streaming, pooling connections, and measurement with built-in tools. Good performance means low latency and healthy resource use. (Node.js)

Key points

Single-threaded for I/O; heavy CPU work can block event loops. (Node.js)
Delegate the heavy computing to worker_threads or separate processes.
Caching (in-memory, Redis) reduces repeated queries to the database.
Use streaming pipelines for large files to save memory.
Use pooling and pooling connections to the database capacity.

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