Re: [PATCH 0/3] readfile(2): a new syscall to make open/read/close faster

Pavel Machek
2020-07-14T06:51:16Z

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Hi!

> > At first, I thought that the proposed system call is capable of
> > reading *multiple* small files using a single system call - which
> > would help increase HDD/SSD queue utilization and increase IOPS (I/O
> > operations per second) - but that isn't the case and the proposed
> > system call can read just a single file.
>
> If you want to do this for multple files, use io_ring, that's what it
> was designed for. I think Jens was going to be adding support for the
> open/read/close pattern to it as well, after some other more pressing
> features/fixes were finished.

What about... just using io_uring for single file, too? I'm pretty
sure it can be wrapped in a library that is simple to use, avoiding
need for new syscall.
Pavel

--
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