c++ Programming Glossary: performanceWhy 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 independent terms the order should not matter. java c performance optimization branch prediction share improve this question.. some hacks if you are willing to sacrifice readability for performance. Replace if data c 128 sum data c with int t data c 128 31 sum..
Why isn't sizeof for a struct equal to the sum of sizeof of each member? http://stackoverflow.com/questions/119123/why-isnt-sizeof-for-a-struct-equal-to-the-sum-of-sizeof-of-each-member so that data members are optimally aligned for better performance. Many processors perform best when fundamental data types are..
Why is “using namespace std;” considered bad practice? http://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice in std namespace that much Or does this impact program performance noticeably as you get into writing larger applications c namespaces.. faq share improve this question This is not related to performance at all. But consider this You are using two libraries called..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new building a memory pool a garbage collector or simply when performance and exception safety are paramount there's no danger of allocation..
Is there a performance difference between i++ and ++i in C++? http://stackoverflow.com/questions/24901/is-there-a-performance-difference-between-i-and-i-in-c there a performance difference between i and i in C We looked at this answer for.. question http stackoverflow.com questions 24886 is there a performance difference between i and i in c What's the answer for C c optimization.. i and i in c What's the answer for C c optimization performance post increment pre increment share improve this question ..
Is it better in C++ to pass by value or pass by constant reference? http://stackoverflow.com/questions/270408/is-it-better-in-c-to-pass-by-value-or-pass-by-constant-reference that pass by constant reference should provide for better performance in the program because you are not making a copy of the variable...
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom of operator . Additionally we no longer have a performance penalty on non self assignments. And that is the copy and swap..
What can I use to profile C++ code in Linux? http://stackoverflow.com/questions/375913/what-can-i-use-to-profile-c-code-in-linux it's being subjectively slow there's a simple way to find performance problems. Just halt it several times and each time look at the.. is this will prove or disprove it. You may have multiple performance problems of different sizes. If you clean out any one of them.. the more likely you are to find that that is the cause of performance problems and the opportunity to get speedup . Added It might..
Why Switch/Case and not If/Else If? http://stackoverflow.com/questions/1028437/why-switch-case-and-not-if-else-if is difficult to maintain switch gives cleaner structure. Performance. For dense case values compiler generates jump table for sparse..
fastest c++ file compression library available? [closed] http://stackoverflow.com/questions/124239/fastest-c-file-compression-library-available files in the same archive. I am looking for a C C library. Performance is the key factor. The files that are being compressed are small..
Performance difference between ++iterator and iterator++? http://stackoverflow.com/questions/1303899/performance-difference-between-iterator-and-iterator difference between iterator and iterator My workmate claims..
How to get the cpu usage per thread on windows (win32) http://stackoverflow.com/questions/1393006/how-to-get-the-cpu-usage-per-thread-on-windows-win32
What are some good profilers for native C++ on Windows? http://stackoverflow.com/questions/153559/what-are-some-good-profilers-for-native-c-on-windows I've used Intel's VTune and Compuware's Devpartner Performance Analysis Community Edition. VTune seemed very powerful but it..
Best open XML parser for C++ [closed] http://stackoverflow.com/questions/170686/best-open-xml-parser-for-c throughput is about 1 billion characters per second. See Performance section in the Online Manual. Small memory footprint of the..
Why should exceptions be used conservatively? http://stackoverflow.com/questions/1744070/why-should-exceptions-be-used-conservatively conservative with how they are used Semantics Performance Complexity Aesthetics Convention I've seen some analysis on..
http://stackoverflow.com/questions/4340396/does-the-c-standard-mandate-poor-performance-for-iostreams-or-am-i-just-deali so much as the title the 2006 Technical Report on C Performance has an interesting section on IOStreams p.68 . Most relevant..
Performance of qsort vs std::sort? http://stackoverflow.com/questions/4708105/performance-of-qsort-vs-stdsort of qsort vs std sort According Scott Meyers in his Effective.. specific higher resolution timer like the Windows High Performance Timer. More than that the way that you call clock is that first..
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 of built in types char vs short vs int vs. float vs. double..
http://stackoverflow.com/questions/601558/multithreading-reference Sutter 䏭 Mill Effective Concurrency Understanding Parallel Performance Sutter 䏭 Mill Effective Concurrency Use Threads Correctly Isolation..
How to determine CPU and memory consumption from inside a process? http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process completeness. Others however need to be obtained from the Performance Data Helper libary PDH which is a bit unintuitive and takes..
Why doesn't delete set the pointer to NULL? http://stackoverflow.com/questions/704466/why-doesnt-delete-set-the-pointer-to-null couple of reasons why standard would have restricted this Performance An additional instruction could slow down the delete performance...
Of Memory Management, Heap Corruption, and C++ http://stackoverflow.com/questions/7525/of-memory-management-heap-corruption-and-c to the Windows equivalents. Think about using the Google Performance Tools as a replacement malloc new. Have you cleaned out all..
What XML parser should I use in C++? http://stackoverflow.com/questions/9387610/what-xml-parser-should-i-use-in-c thing to you in your XML work Maximum XML Parsing Performance Your application needs to take XML and turn it into C datastructures.. a header only library with no dependencies. I Care About Performance But Not Quite That Much Yes performance matters to you. But.. doesn't require so much user controlled memory management. Performance is still important but you want something a little less direct...
Advantage of switch over if-else statement http://stackoverflow.com/questions/97987/advantage-of-switch-over-if-else-statement an expected action that presently is the same action . Performance and space need to be considered but are not critical. I've abstracted..
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