Messages in this thread | | | Subject | Re: [PATCH v7 3/3] nl80211/mac80211: Report signal average | From | Johannes Berg <> | Date | Wed, 17 Nov 2010 08:16:35 -0800 |
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On Wed, 2010-11-17 at 17:28 +0900, Bruno Randolf wrote:
> > Or am I missing something here and we have a compiler that is actually > > able to take care of this kind of optimizations by itself in the current > > ewma library design? Or is the unsigned long division with the expected > > weight values going to be fast enough to not justify caring about it > > even on any of the embedded boards anyway? > > I understand that this could be more efficient, but if it matters or not - > honestly, I don't know. Can a more knowledgeable person than me comment on > this?
Yes, it does matter -- think of an embedded MIPS board running at 500MHz and trying to push 11n speeds.
johannes
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