Re: [PATCH] irqchip/gic-v3: do runtime cpu cap check only when necessary

[Puyou Lu]

On Sun, Aug 28, 2022 at 06:11:15PM +0100, Marc Zyngier wrote:
> Well, what you got wrong is that these instructions are stepped over
> two branches when the caps are finalised, and that doesn't appear in
> the disassembly (you need to look at the code that is actually
> executed).
> 
> Now, any optimisation of the sort must be backed by some performance
> numbers. If you can show that this has a meaningful impact on a given
> workload, I'm happy to look into it. But only if you can show that
> data.
> 
> Thanks,
> 
> 	M.
> 
> -- 
> Without deviation from the norm, progress is not possible.

Thank you very much for correcting me, and sorry for wasting your time, I
got it now.