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c++ Programming Glossary: measurements

HPET's frequency vs CPU frequency for measuring time

http://stackoverflow.com/questions/12971110/hpets-frequency-vs-cpu-frequency-for-measuring-time

frequency cannot be considered as a constant. This way measurements are only posible during constant phases. In fact none of the..

When should I use C++1y automatic return type deduction?

http://stackoverflow.com/questions/15737223/when-should-i-use-c1y-automatic-return-type-deduction

rely on. Occasionally someone tries to make some objective measurements. To the small extent that anyone ever comes up with any statistically..

How heavy is QObject really? [duplicate]

http://stackoverflow.com/questions/15763088/how-heavy-is-qobject-really

any clarity on how heavy is it exactly. So I did some measurements not very accurate all values are approximate. unused QObject..

How to analyze program running time

http://stackoverflow.com/questions/18194577/how-to-analyze-program-running-time

it is in the presentation of results . Statistics and measurements cannot tell you what a small selection of samples examined carefully..

Fast bignum square computation

http://stackoverflow.com/questions/18465326/fast-bignum-square-computation

down even more. NTT is for my purposes also unusable some measurements a 0.98765588997654321000 389 32 bits looped 1x times sqr1 3.177..

modular arithmetics and NTT (finite field DFT) optimizations

http://stackoverflow.com/questions/18577076/modular-arithmetics-and-ntt-finite-field-dft-optimizations

constants use last N x convolution of original x .y some measurements before optimizations non Class NTT a 0.98765588997654321000.. mul2 3.172 ms karatsuba mul mul3 1053.382 ms NTT mul some measurements after my optimizations current code lower recursion parameter.. now the same as my optimized DFFT on 64bit doubles. some measurements a 0.98765588997654321000 1553 32bits looped 1x times mul2 28.585..

C++ Array vs vector

http://stackoverflow.com/questions/1945777/c-array-vs-vector

performance optimizations and compiler settings I did some measurements this morning. I had to set size 3000 so I did my measurements.. this morning. I had to set size 3000 so I did my measurements with roughly a tenth of the original entries. All measurements.. with roughly a tenth of the original entries. All measurements performed on a 2.66 GHz Xeon With debug settings in Visual Studio..

How to estimate the thread context switching overhead?

http://stackoverflow.com/questions/304752/how-to-estimate-the-thread-context-switching-overhead

is twofold If exists at all where can I find any actual measurements of the cost of switching thread context Without spending time..

Qt: Best way to implement “oscilloscope-like” realtime-plotting

http://stackoverflow.com/questions/3848427/qt-best-way-to-implement-oscilloscope-like-realtime-plotting

I'm working on a Gui Module for Qt to plot realtime measurements like in an digital oscilloscope based on Qwt . Everything works.. storage more to be more independent on working with the measurements. Therefore it would be nice to add a seperate List of time coordinates.. is Is this smart 20 or 30 QObjects containing each 10000 measurements 10000 time values plus a seperate memory region of similar size..

C++ performance challenge: integer to std::string conversion

http://stackoverflow.com/questions/4351371/c-performance-challenge-integer-to-stdstring-conversion

doesn't http ideone.com T5Wim I'll post my performance measurements as an answer shortly. Rules for algorithms Provide code for..

How much footprint does C++ exception handling add

http://stackoverflow.com/questions/691168/how-much-footprint-does-c-exception-handling-add

your compiler for the exception handling if you have such measurements Is the exception handling really more expensive many say that..

Efficiency of std::copy vs memcpy

http://stackoverflow.com/questions/7285952/efficiency-of-stdcopy-vs-memcpy

Hoisting the dynamic type out of a loop (a.k.a. doing Java the C++ way)

http://stackoverflow.com/questions/7451442/hoisting-the-dynamic-type-out-of-a-loop-a-k-a-doing-java-the-c-way

will drown out any gains or just in pure noise of the measurements. So to answer the question. No the address of the function is..