I have a dynamic programming algorithm for Knapsack in C++. When it was implemented as a function and accessing variables passed into it, it was taking 22 seconds to run on a particular instance. When
I was playing around today with some timing code and discovered that when asigning a string literal to std::string, that it was around 10% faster (with a short 12 char string, so likly even bigger dif
The return value of a function is usually stored on the stack or in a register. But for a large structure, it has to be on the stack. How much copying has to happen in a real compiler for this code? O
So I was reading about the memory model that is part of the upcoming C++0x standard. However, I\'m a bit confused about some of the restrictions for what the compiler is allowed to do, specifically ab
Just to make it clear, I\'m not going for any sort of portability here, so any solutions that will tie me to a certain box is fine.
If you were con开发者_Go百科structing a compiler, what optimization at the AST level would be the nicest to have?Mostly you can\'t do interesting optimizations at the AST level, because you need infor
As the title says, what are the compiler, CLR or CPU optimizations to be aware of when working with threads and non-blocking synchronization?
Are reordering and interleaving interchangeable开发者_开发问答 terms when it comes to code compilation, optimization and execution?I\'d say they describe a similar technique but mean something else at
I have a workspace built using MS-Visual Studio 20开发者_如何转开发05 with all C code.In that i see many functions which are not called but they are still compiled(they are not under any compile time
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