Linus Torvalds Lands A 2.6% Performance Improvement With Minor Linux Kernel Patch

[marios]

More secure critical systems - oh, the humanity!

More undefined critical systems, I would say, since rust is undefined (there is no definition on how the binary generated by Rust code should behave).
I had no intention to flame Rust once more, but you asked for it...

Enlighten us, o Nostradamus of Phoronix - what are these known reasons? And surely the lines with the same mitigation in the lib/usercopy.c were not related?

lol, looks like someone does not know the meaning of "I am not certain it is true" and "if".

More seriously - Linux kernel code is messy. It's a wonderful piece of software, but the code quality in the kernel... highly varies, to say the least. Also, ultimately, all large software is bound to have some code smells and bugs. This is a mix of that, plus hardware issues with CPU speculation. See this post for seemingly the context of these changes: https://www.phoronix.com/news/Torval...rated-Buggy-HW

I agree with that.

[asmboid]

So funny that people praise O Mighty Linus so much when he only took the idea of Josh Poimboeuf and put his name on it. At least phoronix mentioned the name of the original author, sometimes articles miss even that.