nodejs / nodejs/performance

TextDecode Regression

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Description

TextDecoder.decode() has drastically regressed in Node.js 22 (in comparisson to with Node.js 20)

image

Refs: https://nodesource.com/blog/State-of-Nodejs-Performance-2024

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the TextDecoder.decode() comparison described in the issue with Node.js 20 and Node.js 22, using the linked performance reference for context. Determine which benchmark or reproduction is represented by the screenshot; done means the regression is isolated and the issue has a confirmed, repeatable result or a clearly documented next step.

Written by the indexing model from the issue text.

Assessment

Tech stack
node.js
Domain
performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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