René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"#127648 introduced a ~12% performance regression in `python_startup_no_site` benchmark","articleBody":"# Bug report\n\n### Bug description:\n\nPlotting the Faster CPython team's weekly benchmarks, there is an obvious discontinuity in the python_startup_no_site benchmark:\n\n![Image](https://github.com/user-attachments/assets/2a5e72ff-acab-4708-949d-48df8e4d7e64)\n\nThis is between these two commits:\n\n2025-03-03 0.98 b3c18bf\n2025-03-08 0.85 a3990df\n\nBisecting over this range, it's reproducible that the first bad commit is https://github.com/python/cpython/commit/c6dd2348ca.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nLinux\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-132956\n* gh-132957\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/mdboom","@type":"Person","name":"mdboom"},"datePublished":"2025-04-25T15:30:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/132952/cpython/issues/132952"}