René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"v8: GCProfiler reports minor mark-sweep collections as \"Unknown\"","articleBody":"### Version\n\nlatest main branch\n\n### Platform\n\n```text\n7.1.4-arch1-1\n```\n\n### Subsystem\n\nv8\n\n### What steps will reproduce the bug?\n\n  ```js\n  'use strict';\n\n  const { GCProfiler } = require('node:v8');\n\n  const profiler = new GCProfiler();\n  profiler.start();\n\n  globalThis.gc({\n    type: 'minor',\n    execution: 'sync',\n  });\n\n  const profile = profiler.stop();\n  console.log(profile.statistics.map(({ gcType }) => gcType));\n```\n\n  node --expose-gc --minor-ms repro.js\n\n### How often does it reproduce? Is there a required condition?\n\nEvery\n\n### What is the expected behavior? Why is that the expected behavior?\n\n [ 'MinorMarkSweep' ]\n\n### What do you see instead?\n\n [ 'Unknown' ]\n\n### Additional information\n\n_No response_","author":{"url":"https://github.com/Archkon","@type":"Person","name":"Archkon"},"datePublished":"2026-07-23T05:49:29Z","url":"https://github.com/nodejs/node/issues/64687"}