Pipe FMODE_NOWAIT Support Sent In For Linux 6.4 As A 10~23x Performance Improvement

[phoronix]

Phoronix: Pipe FMODE_NOWAIT Support Sent In For Linux 6.4 As A 10~23x Performance Improvement

While the Linux 6.4 merge window is closing this weekend, today on the last full day of the period is Jens Axboe submitting pipe FMODE_NOWAIT support as what he's described as a big performance and efficiency improvement...

https://www.phoronix.com/news/Pipe-FMODE_NOWAIT-Linux-6.4

[EphemeralEft]

I’m confused, have these performance improvements already been added to the kernel in previous patches? Or do the patches today multiply performance by 1-2.3x? Or something else?

[rene]

sounds like performance mostly only for still rare, explicit io_uring, no?

[NobodyXu]

sounds like performance mostly only for still rare, explicit io_uring, no?

Yes, I think this feature is motivated by https://github.com/axboe/liburing/issues/830