Messages in this thread | | | Date | Tue, 4 Dec 2012 16:06:18 +0000 | From | Alan Cox <> | Subject | Re: [char-misc-next 07/15] mei: use wrietl/readl instead of io wrappers |
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On Tue, 4 Dec 2012 16:02:17 +0000 "Winkler, Tomas" <tomas.winkler@intel.com> wrote:
> > > > As to overhead. I'd love to see a measurement that can detect > > > > the difference. Do you have a benchmark that shows it ? > > > > > > Don't have any numbers but it seems reasonable to me. > > > > Processors are pretty good at prediction these days. I've not seen > > any evidence to support the assumption. > > I don't have strong opinion about it, yet what would be benefit of > keeping the io abstraction layer, In case we are sure it is not used > with io ports?
Less changes to existing working code being the obvious one.
Alan
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