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c++ Programming Glossary: predictWhy 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..
Convert inline assembly code to C++ http://stackoverflow.com/questions/16142284/convert-inline-assembly-code-to-c neither Win64 x64 nor the UN X x86_64 conventions allow to predict both the locations and total stack memory usage of all arguments..
Embedded C++ : to use STL or not? http://stackoverflow.com/questions/2226252/embedded-c-to-use-stl-or-not so powerful processors there's the subjective bit I cannot predict which. I have read quite a bit about debate about using STL..
Floating point vs integer calculations on modern hardware http://stackoverflow.com/questions/2550281/floating-point-vs-integer-calculations-on-modern-hardware assumption. I realize that it would be impossible to predict the exact outcome for us short of doing all the work and profiling..
How to read a line from a text file in c/c++? [duplicate] http://stackoverflow.com/questions/3081289/how-to-read-a-line-from-a-text-file-in-c-c if I don't know what the length of each line is and cannot predict what the size may be Also what is it's equivalent in C Is there..
What's the usual way of controlling frame rate? http://stackoverflow.com/questions/5508922/whats-the-usual-way-of-controlling-frame-rate and settings there are too many variations for you to predict or handle even half and make your game work with that instead..
Problem with EOF when determine stream end http://stackoverflow.com/questions/6029875/problem-with-eof-when-determine-stream-end variants it is as simple as that. You want it to somehow predict the next read will fail but that's not what it does it tells..
What is the performance cost of having a virtual method in a C++ class? http://stackoverflow.com/questions/667634/what-is-the-performance-cost-of-having-a-virtual-method-in-a-c-class cycle but that the indirect jump usually cannot be branch predicted. This can cause a large pipeline bubble as the processor cannot.. likely to be in cache and whether your architecture can predict static not virtual branches and fetch those instructions into..
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.. branch prediction slot on the CPU. If these two branches predict different each time the code will slow down. In the second loop.. enough to move one of the branches to a different branch prediction slot. To be sure you can give the Intel VTune analyzer or..
What does `std::kill_dependency` do, and why would I want to use it? http://stackoverflow.com/questions/7150395/what-does-stdkill-dependency-do-and-why-would-i-want-to-use-it for example by performing speculative optimizations that predict the value of a r2 . In order to make the call to do_something_with.. the compiler that it is allowed to effectively do this predicted_r2 x index unordered load r1 x ordered load r2 r1 index do_something_with.. load r1 x ordered load r2 r1 index do_something_with a predicted_r2 may be faster than waiting for r2's value to be available..
Is there any reason to use C instead of C++ for embedded development? http://stackoverflow.com/questions/812717/is-there-any-reason-to-use-c-instead-of-c-for-embedded-development and I will stick with C mainly because It is easier to predict actual code in C and this is really important if you have only..
What are the common causes for high CPU usage? http://stackoverflow.com/questions/9275262/what-are-the-common-causes-for-high-cpu-usage to be done by the thread but how does the OS compute or predict the amount of work before executing it completely I wonder what.. with high CPU usage . The OS scheduler pretty much doesn't predict the amount of work a thread will do. A thread is to over simplify.. idea is that a thread with a lot to do doesn't need to be predicted as compute heavy it will just always be available whenever..
How do you determine the size of an object in C++ ? http://stackoverflow.com/questions/937773/how-do-you-determine-the-size-of-an-object-in-c
cmake is not working in opencv c++ project http://stackoverflow.com/questions/9742052/cmake-is-not-working-in-opencv-c-project build vocabulary Scanning dependencies of target foodcam predict 16 Building CXX object CMakeFiles foodcam predict.dir foodcam_predict.cpp.o.. foodcam predict 16 Building CXX object CMakeFiles foodcam predict.dir foodcam_predict.cpp.o 25 Building CXX object CMakeFiles.. Building CXX object CMakeFiles foodcam predict.dir foodcam_predict.cpp.o 25 Building CXX object CMakeFiles foodcam predict.dir..
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