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Hitting Peak File IO Performance with Zig

(steelcake.com)
129 points ozgrakkurt | 1 comments | 04 Sep 25 19:15 UTC | HN request time: 0.216s | source
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marginalia_nu ◴[07 Sep 25 08:26 UTC] No.45156429[source]▶
I'm not very familiar with zig and was kind a struggling to follow the code and maybe that's why I couldn't find where the setting was being set up, but in case it's not, be sure to also use registered file descriptors with io_uring as they make a fairly big difference.
replies(1): >>45163298 #
1. ozgrakkurt ◴[07 Sep 25 23:47 UTC] No.45163298[source]▶
I added registering file descriptors now.

It didn't make any difference when I was benchmarking with fio but I didn't use many threads so not sure.

I added it anyway since I saw this comment and also the io_uring document says it should make a difference.