This is the dude tasked with managing Linshits IO stack, including the fundamentally flawed muh zero-syscall pissring (#a), the fucked io_submit apis that never worked properly (incl io_cancel that spuriously returns EINVAL despite all magics matching); the retard who stuck to Linus's idea that MUH O_DIRECT IS LE EVIL YOU MUST USE MY CACHES REEE REEE (#b); and the retard who got indirectly called out by Linus as being apart of the database maintainers who Linus didn't/doesnt like and who wanted these APIs in the first place (#c).
#a
This dumb cunt can't even write a ring buffer. He thinks the solution to everything is spawn a thread, like the glibc and libuv retards.
He seems to think a ring buffer also magically hooks into a thread scheduler, and something something, orange lingo, muh zero syscall overhead as if the kernel should be/is constantly checking every thread for an arbitrary amount of IO ring buffers.
#b
"The whole notion of "direct IO" is totally braindamaged. Just say no.
This is your brain: O
This is your brain on O_DIRECT: .
Any questions?
I should have fought back harder. There really is no valid reason for EVER
using O_DIRECT. You need a buffer whatever IO you do, and it might as well
be the page cache. There are better ways to control the page cache than
play games and think that a page cache isn't necessary.
So don't use O_DIRECT."
- Commit Torbals, maintainer of toy academic kernels
#c
"AIO is a horrible ad-hoc design, with the main excuse being "other, less gifted people, made that design, and we are implementing it for compatibility because database people - who seldom have any shred of taste - actually use it". But AIO was always really really ugly."
- Commie Torbals, maintainer of toy academic kernels
"Jens works for Oracle"
- https://web.archive.org/web/20130402030321/https://events.linuxfoundation.org/jls06b
J Reece Wilson
21a2eae546