René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"JIT coverage can be improved considerably","articleBody":"JIT coverage is still quite variable. For some benchmarks, e.g. richards it is close to 100%.\nFor others, much lower:\n\nhttps://github.com/savannahostrowski/pyperf_bench/blob/main/profiling/jit.svg\n\nNote: A fair bit of the time attributed to the interpreter is frame cleanup, so makes the interpreter fractions look larger than they are.\n\nWe can increase JIT coverage, by:\n* Treating dynamic exits, like side exits: warming up and compiling a new side trace.\n* Adding possible jit entry points at function entries, as well as backward edges.\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-143391\n* gh-143977\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/markshannon","@type":"Person","name":"markshannon"},"datePublished":"2025-12-19T15:46:03.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/142982/cpython/issues/142982"}