lkml.org 
[lkml]   [2019]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH 0/2] Optimise io_uring completion waiting
From
Date
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

\
 
 \ /
  Last update: 2019-09-14 02:31    [W:0.232 / U:1.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site