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

[Måns Rullgård]

Steven Rostedt <rostedt@xxxxxxxxxxx> writes:

> 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.

Hey, I tried: http://article.gmane.org/gmane.linux.kernel/1594134

-- 
Måns Rullgård
mans@xxxxxxxxx
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