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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`select.poll.poll` should use `ppoll` when it's available","articleBody":"# Feature or enhancement\n\n### Proposal:\n\n`ppoll` is an extended version of `poll` that lets you set the timeout with nanosecond precision (it also supports setting a signal mask, but that's not important right now). It's available on [Linux](https://man7.org/linux/man-pages/man2/poll.2.html), [FreeBSD](https://man.freebsd.org/cgi/man.cgi?query=ppoll\u0026sektion=2\u0026manpath=FreeBSD+15.0-RELEASE+and+Ports), [OpenBSD](https://man.openbsd.org/poll.2), [NetBSD](https://man.netbsd.org/NetBSD-10.0/ppoll.2), and probably other Unix-likes.\n\nIt would be useful if the Python `poll` function would transparently use `ppoll` on systems where it is available to provide timeouts with nanosecond precision (as opposed to the default millisecond precision).\n\n### Has this already been discussed elsewhere?\n\nThis is a minor feature, which does not need previous discussion elsewhere\n\n### Links to previous discussion of this feature:\n\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-143529\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/SpecLad","@type":"Person","name":"SpecLad"},"datePublished":"2025-12-08T22:32:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/142434/cpython/issues/142434"}