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SubjectRe: [RFC PATCH 0/2] Optimise io_uring completion waiting
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On 9/13/19 4:28 PM, Pavel Begunkov (Silence) wrote:
> From: Pavel Begunkov <asml.silence@gmail.com>
>
> There could be a lot of overhead within generic wait_event_*() used for
> waiting for large number of completions. The patchset removes much of
> it by using custom wait event (wait_threshold).
>
> Synthetic test showed ~40% performance boost. (see patch 2)

Nifty, from an io_uring perspective, I like this a lot.

The core changes needed to support it look fine as well. I'll await
Peter/Ingo's comments on it.

--
Jens Axboe

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