When dealing with performance in Node.js, there are several metrics that can be vitally important when digging deep into how your Node.js apps are performing and how you can improve that performance.
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In a perfect world, you’d focus on preventing memory leaks rather than diagnosing and debugging them. Once a leak is present in your application, it can be extremely difficult to track down the root cause. You’ll need to take heap snapshots of your application over time and inspect them to really dig into the memory usage of your Node.js application.
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