Node Profiler

Simple profiler for Node. Get a CPU Profile, Heap Profile or Heap Snapshot that can then be loaded into VSCode or Chrome DevTools.

Usage

Init the profiler with the desired type. Optionally, a filename prefix can be added (default is __) as the second argument.

import Profiler from '@eklingen/node-profiler'
const profiler = new Profiler('cpu') // Can be `cpu` (default), `heap` or `heap-snapshot`

Then start profiling.

profiler.start()

When enough data has been gathered, stop profiling. The results will be written to disk with the current timestamp and given prefix as filename. The filename will be returned.

const filename = profiler.stop() // Example: "__20240429121317474.cpuprofile"

Dependencies

None.

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Copyright (c) 2024 Elco Klingen. MIT License.