wineport: Use a lookup table to make our slow ffs() a bit faster.
david at l8s.co.uk
Fri Mar 11 11:39:13 CST 2011
On Fri, Mar 11, 2011 at 05:51:27AM -0800, Dan Kegel wrote:
> Large lookup tables can dirty the L1 cache and slow other things down.
And even small tables can also be a slow data cache miss in the
Of course, when benchmarking, the table is all in the cache!
In real life it is likely to be absent (unless you are doing
a lot of lookups together).
David Laight: david at l8s.co.uk
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