But why is this important? Can't computers already do this? Even my 1978 TI pocket calculator can do logs very fast. It's not like this is an important unsolved mathematics puzzle.
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From the first sentence:
> Performance profiling of some of the eBay code base showed the logarithm (log) function to be consuming more CPU than expected.
There are a lot of different types of "very fast", and these guys needed a faster one.
I wonder why eBay is using the log function?
I'm more curious why they use it so extensively that tripling the speed of it is significant to them.
That's a much better way to phrase that, thanks.
Probably has to do with the weighting of search results, reviews, etc.