c++ Programming Glossary: prediction

Why is processing a sorted array faster than an unsorted array?

http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array

should not matter. java c performance optimization branch prediction share improve this question You are the victim of branch.. share improve this question You are the victim of branch prediction fail. What is Branch Prediction Consider a railroad junction.. time stalling rolling back and restarting. This is branch prediction. I admit it's not the best analogy since the train could just..

Fastest way in C to determine if an integer is between two integers (inclusive) with known sets of values

http://stackoverflow.com/questions/17095324/fastest-way-in-c-to-determine-if-an-integer-is-between-two-integers-inclusive

of branch instructions this also generally improves branch prediction. In this case the same branch is taken whether the number is..

Is using double faster than float?

http://stackoverflow.com/questions/3426165/is-using-double-faster-than-float

more marked. In the end you do have to benchmark but my prediction is that for reasonable i.e. large benchmarks you'll find advantage..

Portable branch prediction hints

http://stackoverflow.com/questions/3702903/portable-branch-prediction-hints

branch prediction hints Is there any portable way of doing branch prediction.. hints Is there any portable way of doing branch prediction hints Consider the following example if unlikely_condition ..A.... of the conditions c c optimization compiler branch prediction share improve this question The canonical way to do static..

How can adding code to a loop make it faster?

http://stackoverflow.com/questions/688325/how-can-adding-code-to-a-loop-make-it-faster

case two different branches end up in the same branch prediction slot on the CPU. If these two branches predict different each.. enough to move one of the branches to a different branch prediction slot. To be sure you can give the Intel VTune analyzer or the.. a different brand. EDIT If you want to read on the branch prediction give Agner Fog's excellent web site a try http www.agner.org..

STL vectors with uninitialized storage?

http://stackoverflow.com/questions/96579/stl-vectors-with-uninitialized-storage

more often than you need to. If you can make a good prediction as to the final size of the array it's better to reserve the..