When it comes to performance tuning of Node.js applications, there are several parameters you can adjust to optimize the performance of your application. Here are some of the most important ones:
You can use the Node.js garbage collector to manage the memory used by your application. The garbage collector frees up memory that is no longer being used by your application, which can help improve performance.
Node.js is single-threaded, which means it can only use one CPU core at a time. However, you can use the cluster module to create multiple worker processes that can utilize multiple CPU cores, which can help improve performance.
The Node.js event loop is responsible for handling I/O operations and executing callbacks. By optimizing the event loop, you can improve the performance of your application.
Node.js uses a non-blocking I/O model, which means that file system operations can be slow. You can use the fs module to perform asynchronous file system operations, which can help improve performance.
Node.js is often used to build network applications, so network performance is critical. You can use the built-in networking modules, such as net and http, to optimize network performance.
You can use caching to store frequently accessed data in memory, which can help reduce the number of database or file system operations and improve performance.
Monitoring
It's important to monitor your Node.js application to identify performance bottlenecks and other issues. You can use tools like Node.js's built-in performance monitoring or third-party monitoring tools to monitor your application.