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c++ Programming Glossary: microhttp://stackoverflow.com/questions/1032243/should-i-return-stdstrings a meaningful performance difference I'd argue that it's a micro optimization that only exists in your imagination. It took many..
Windows Phone 8: Media file access http://stackoverflow.com/questions/13467701/windows-phone-8-media-file-access are not implemented on the WP8 http msdn.microsoft.com en us library windows apps hh967755.aspx I need access.. for specific file extensions and read those from the micro SD card. Documents No read write access. But starting WP8 developers..
C++ Which is faster: Stack allocation or Heap allocation http://stackoverflow.com/questions/161053/c-which-is-faster-stack-allocation-or-heap-allocation Or are the differences so minute it becomes pointless micro optimization. c performance memory share improve this question..
http://stackoverflow.com/questions/1783822/format-of-for-loops loop share improve this question Everybody loves their micro optimizations but this would not make a difference as far as..
C++ high precision time measurement in Windows http://stackoverflow.com/questions/1825720/c-high-precision-time-measurement-in-windows If it isn't is it possible to get the specific time in microseconds at least . Any library should do unless I suppose it's.. timer on windows that kan be used to time thing with micro second precision at least not when running on a multicore computer..
How to Calculate Execution Time of a Code Snippet in C++ http://stackoverflow.com/questions/1861294/how-to-calculate-execution-time-of-a-code-snippet-in-c tv gettimeofday tv NULL uint64 ret tv.tv_usec Convert from micro seconds 10^ 6 to milliseconds 10^ 3 ret 1000 Adds the seconds.. 1000 return ret #endif You can modify it to return microseconds instead of milliseconds if you want. share improve this..
Why does gcc generate 15-20% faster code if I optimize for SIZE instead of speed? http://stackoverflow.com/questions/19470873/why-does-gcc-generate-15-20-faster-code-if-i-optimize-for-size-instead-of-speed Why and how The noise it makes pretty much makes timing micro optimizations impossible. How can I make sure that such accidental.. lucky unlucky alignments are not interfering when I do micro optimizations unrelated to stack alignment on C or C source..
At what point is it worth using a database? http://stackoverflow.com/questions/2648802/at-what-point-is-it-worth-using-a-database a GUI for a single user on a desktop to interface with a micro controller for monitoring and configuration purposes. I decided..
How can I compare the performance of log() and fp division in C++? http://stackoverflow.com/questions/2858483/how-can-i-compare-the-performance-of-log-and-fp-division-in-c it's not only compiler and architecture dependent but also micro architecture and data dependent. On your particular platform..
Floating point division vs floating point multiplication http://stackoverflow.com/questions/4125033/floating-point-division-vs-floating-point-multiplication vs floating point multiplication Is there any non microoptimization performance gain by coding float f1 200f 2 in comparision.. in hardware than multiplication c floating point micro optimization share improve this question Yes many CPUs can..
http://stackoverflow.com/questions/4340396/does-the-c-standard-mandate-poor-performance-for-iostreams-or-am-i-just-deali test it It isn't being used polymorphically in this simple micro benchmark so that doesn't explain it. c performance iostream..
How do I get started in embedded programming? [closed] http://stackoverflow.com/questions/45247/how-do-i-get-started-in-embedded-programming are some tips to get started in embedded systems. Get a micro controller. Try starting with a demonstration board . they are..
http://stackoverflow.com/questions/6320789/c-aliasing-rules y interwoven operations on x y... I'm not trying to micro optimise but I'm wondering if it's currently better to pass..
http://stackoverflow.com/questions/6432669/variance-in-rdtsc-overhead in RDTSC overhead I'm constructing a micro benchmark to measure performance changes as I experiment with.. image processing operations. However writing useful micro benchmarks is difficult so I'd like to first understand and.. for this code. I'm not enough of a guru on the Core2 microarchitecture to say exactly why you're getting this bimodal distribution..
What is the best Evaluation Kit for Learning Embedded C/C++ Development? [closed] http://stackoverflow.com/questions/644889/what-is-the-best-evaluation-kit-for-learning-embedded-c-c-development an STM32 with more FLASH and RAM on chip that also has a micro SD card connector and a larger LCD that includes a resistive..
Fast multiplication/division by 2 for floats and doubles (C/C++) http://stackoverflow.com/questions/7720668/fast-multiplication-division-by-2-for-floats-and-doubles-c-c D ldexp d 5 is much slower 6000 ms . I know that this is a micro benchmark and that suddenly my RAM has exploded because Chrome..
Handle arbitrary length integers in C++ http://stackoverflow.com/questions/8146938/handle-arbitrary-length-integers-in-c with libraries for days like i did in an easy step by step micro guide. Stuff i was using keep this in mind to follow the guide..
What is the fastest Dijkstra implementation you know (in C++)? http://stackoverflow.com/questions/938338/what-is-the-fastest-dijkstra-implementation-you-know-in-c networks 1 million nodes have query times expressed in micro seconds. See for more details the 9th DIMACS Implementation..
What can cause D3D11CreateDevice() to fail with E_FAIL? http://stackoverflow.com/questions/10586956/what-can-cause-d3d11createdevice-to-fail-with-e-fail First chance exception at 0x7590b9bc in Init Direct3D.exe Microsoft C exception _com_error at memory location 0x0049ec64.. c.. Card name ATI Radeon HD 5670 Manufacturer Advanced Micro Devices Inc. Chip type ATI display adapter 0x68D8 DAC type Internal.. Enabled Card name ATI Radeon HD 5670 Manufacturer Advanced Micro Devices Inc. Chip type ATI display adapter 0x68D8 DAC type Internal..
Can C++ compilers optimize “if” statements inside “for” loops? http://stackoverflow.com/questions/1462710/can-c-compilers-optimize-if-statements-inside-for-loops generated by going over the assembly the compiler outputs. Micro optimizations like this you should always just leave to the..
Avoiding denormal values in C++ http://stackoverflow.com/questions/2487653/avoiding-denormal-values-in-c want is a sample based analyzer like Shark VTune or Zoom . Micro optimization even more than other optimizations is totally hopeless..
What is the best Evaluation Kit for Learning Embedded C/C++ Development? [closed] http://stackoverflow.com/questions/644889/what-is-the-best-evaluation-kit-for-learning-embedded-c-c-development c c embedded arm share improve this question ST Micro has a very attractively priced and packaged too kit for their.. runs just over 100 if you can find it in stock. Luminary Micro has a number of inexpensive demo eval board kits as well. The.. in SoC and MCU scale devices seem to like the Luminary Micro product line but I have no personal experience with them. share..
How to realise long-term high-resolution timing on windows using C++? http://stackoverflow.com/questions/7583074/how-to-realise-long-term-high-resolution-timing-on-windows-using-c not exactly precise but still quite usable . See also Micro Second resolution timestamps on windows share improve this..
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