c++ Programming Glossary: denormals

http://stackoverflow.com/questions/2051534/floating-point-math-execution-time

operands. As for how to avoid this if you can't flush denormals do what you can to make sure your data is scaled appropriately.. your data is scaled appropriately and you don't encounter denormals in the first place. Usually this means delaying applying some..

Why is one loop so much slower than two loops?

http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops

d1 c1 n #endif Zero the data to prevent any chance of denormals. memset a1 0 n sizeof double memset b1 0 n sizeof double memset..

Why does changing 0.1f to 0 slow down performance by 10x?

http://stackoverflow.com/questions/9314534/why-does-changing-0-1f-to-0-slow-down-performance-by-10x

has everything to do with denormalized numbers if we flush denormals to zero by adding this to the start of the code _MM_SET_FLUSH_ZERO_MODE.. to zero instead. Timings Core i7 920 @ 3.5 GHz Don't flush denormals to zero. 0.1f 0.564067 0 26.7669 Flush denormals to zero. 0.1f.. flush denormals to zero. 0.1f 0.564067 0 26.7669 Flush denormals to zero. 0.1f 0.587117 0 0.341406 In the end this really has..