c++ Programming Glossary: architectures
Is < faster than <=? [closed] http://stackoverflow.com/questions/12135518/is-faster-than improve this question No it will not be faster on most architectures. You didn't specify but on x86 all of the integral comparisons..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code improve this question Preliminaries Modern computer architectures feature complex memory hierarchies registers typically several.. takes only a handful of cycles. In modern computer architectures the performance bottleneck is leaving the CPU die e.g. accessing.. can be much larger. Avoid unpredictable branches Modern architectures feature pipelines and compilers are becoming very good at reordering..
Difference between float and double http://stackoverflow.com/questions/2386772/difference-between-float-and-double as IEEE double precision. Nevertheless for most architectures gcc MSVC x86 x64 ARM float is indeed a IEEE single precision..
Performance of built-in types : char vs short vs int vs. float vs. double http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double on modern CPUs but this varies quite a bit between architectures. Also remember that you can't consider the speed of a CPU in..
Operator Precedence vs Order of Evaluation http://stackoverflow.com/questions/5473107/operator-precedence-vs-order-of-evaluation point. Edit though it's not exactly threading some architectures do allow such parallel execution. For a couple of examples the.. in parallel just like if you used multiple threads on architectures with which most of us are more familiar. Summary Order of evaluation..
size of int, long, etc http://stackoverflow.com/questions/589575/size-of-int-long-etc float and other types I didn't think of under different architectures and compilers. c c faq share improve this question The..
C++: Pointer to class data member http://stackoverflow.com/questions/670734/c-pointer-to-class-data-member data. Pointer to member functions can be used in pluggable architectures but once again producing an example in a small space defeats..
Exotic architectures the standards committees care about http://stackoverflow.com/questions/6971886/exotic-architectures-the-standards-committees-care-about architectures the standards committees care about I know that the C and C.. its own unique specification. However I don't know of any architectures used today where CHAR_BIT 8 signed is not two's complement I.. any specific architecture myself. So the question is what architectures exhibit the above properties uint _t s are optional. c c architecture..
Why would one replace default new and delete operators? http://stackoverflow.com/questions/7149461/why-would-one-replace-default-new-and-delete-operators for suboptimal memory alignment in new Many computer architectures require that data of particular types be placed in memory at.. can lead to hardware exceptions at run time. Other architectures are more forgiving and may allow it to work though reducing..
Fast Cross-Platform C/C++ Image Processing Libraries http://stackoverflow.com/questions/796364/fast-cross-platform-c-c-image-processing-libraries directly. IPP was designed with high performance on Intel architectures as a goal. It is optimized to use the intel SIMD instructions...
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle if grouped in 3's it suddenly works like magic. Other architectures possibly Sandy Bridge and others appear to be able to execute..
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 interesting to point out the differences between CPU cache architectures by providing a similar graph for these CPUs. PPS The full code..
Memcached on Windows (x64) http://stackoverflow.com/questions/8896/memcached-on-windows-x64 least because of the intricate differences in 32 and 64bit architectures but I'm wondering if anyone is workng on getting this off the..
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