Re: [ABOMINATION] x86: Fast interrupt return to userspace

[Steven Rostedt]

On Tue, 6 May 2014 14:48:50 -0700
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:


> Yeah, it's disgusting. I think it is worth fixing to get better
> numbers (it *would* be very interesting to hear whether this plus the
> kernel 'retq' thing actually makes real device interrupt overhead
> lower), but I'd be very wary of using it in production.

Darn it. I was actually hoping that someone else could have the
reputation of doing "I can't believe they actually did this" code in the
kernel.

-- Steve
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