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c++ Programming Glossary: misseshttp://stackoverflow.com/questions/12710801/c-operator-guarantees in the type of the result a b b a b is equal to a. Which misses the last sentence. So the part a b b a b is equal to a Is the..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code to prefetch data. This will indirectly lead to more cache misses. This is explained very well here thanks to @0x90 for the link.. represent a controversial issue with regard to cache misses a general consensus exists that they should be avoided when.. terms of performance . Virtual functions can induce cache misses during look up but this only happens if the specific function..
1D or 2D array, what's faster? http://stackoverflow.com/questions/17259877/1d-or-2d-array-whats-faster the 2D data see below you'll avoid facing a lot of cache misses would happen to be the case if you decide to go for 2D . 1...
Linux C++: how to profile time wasted due to cache misses? http://stackoverflow.com/questions/2486840/linux-c-how-to-profile-time-wasted-due-to-cache-misses C how to profile time wasted due to cache misses I know that I can use gprof to benchmark my code. However I.. there a way to measure the time my CPU wastes due to cache misses Thanks c linux caching profiling share improve this question..
http://stackoverflow.com/questions/2504178/lru-cache-design follows 1 find the item as fast as we can 2 Once a cache misses and a cache is full we need to replace the least recently used..
What the heque is going on with the memory overhead of std::deque? http://stackoverflow.com/questions/4088999/what-the-heque-is-going-on-with-the-memory-overhead-of-stddeque fact that it has such a huge overhead resulting in cache misses page faults etc. and that the cost of copying std vector elements..
Use of typename keyword with template function parameters http://stackoverflow.com/questions/4347730/use-of-typename-keyword-with-template-function-parameters a function declaration with an invalid parameter name that misses its type A parameter's name is parsed by a declarator id which..
How many and which are the uses of “const” in C++? http://stackoverflow.com/questions/455518/how-many-and-which-are-the-uses-of-const-in-c destructor of Derived is called correctly. The above code misses some small details but that's the big deal with it. Use const..
Which one will execute faster, if (flag==0) or if (0==flag)? http://stackoverflow.com/questions/4624536/which-one-will-execute-faster-if-flag-0-or-if-0-flag if not zero or some equivalent. I'd doubt the compiler misses such an obvious optimization even with optimizations turned..
Safely override C++ virtual functions http://stackoverflow.com/questions/497630/safely-override-c-virtual-functions instead of child handle_event because the child's method misses the const declaration and therefore declares a new method. This..
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 your data come from cache instead of taking frequent cache misses then the faster memory access will trump the slower operation..
http://stackoverflow.com/questions/5232198/about-vectors-growth the Article 6.3 How a vector Grows Itself this Program misses a in the couts The program given is #include vector #include..
Best way to determine if two path reference to same file in C/C++ http://stackoverflow.com/questions/562701/best-way-to-determine-if-two-path-reference-to-same-file-in-c-c Win32 using C C While this will handle a lot of cases it misses some things _tcsicmp szPath1 szPath2 0 For example forward slashes..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords x is taken as non type but as an expression the following misses an operator between the two names or a semicolon separating..
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 does. My timings control for the influence of icache misses on execution deliberately since I was trying to examine the..
Should we still be optimizing “in the small”? http://stackoverflow.com/questions/763656/should-we-still-be-optimizing-in-the-small in a larger executable and more instruction cache misses. Inlining is always a tradeoff and often the compiler is better..
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