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

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