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io: reduce syscalls in poll_read #4840

Merged
merged 1 commit into from
Jul 26, 2022
Merged

io: reduce syscalls in poll_read #4840

merged 1 commit into from
Jul 26, 2022

Commits on Jul 26, 2022

  1. io: reduce syscalls in poll_read 

    As the [epoll documentation points out](https://man7.org/linux/man-pages/man7/epoll.7.html), a read that only partially fills a buffer is sufficient to show that the socket buffer has been drained.

We can take advantage of this by clearing readiness in this case, which seems to significantly improve performance under certain conditions.
    @carllerche @Noah-Kennedy
    carllerche authored and Noah-Kennedy committed Jul 26, 2022
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