Glossary term
What is highWaterMark? Meaning for developers
The buffer size at which a stream counts as full, 64 KiB by default for byte streams and 16 objects in object mode.
Learn it properly · Node.js From ZeroLesson 3: Streams and BackpressureReadable, writable and transform streams, pipeline, backpressure shown with real memory numbers, and when streams beat reading whole files.