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What is data oriented design?

... though you don't need them. Cache Usage Example Say each ball takes up 64 bytes and a Point takes 4 bytes. A cache slot takes, say, 64 bytes as well. If I want to update the position of 10 balls, I have to pull in 10*64 = 640 bytes of memory into cache and get 10 cache misses. If however I can w...
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How to build & install GLFW 3 and use it in a Linux project

...W 3 on your system with CMAKE For this install, I was using KUbuntu 13.04, 64bit. The first step is to download the latest version (assuming versions in the future work in a similar way) from www.glfw.org, probably using this link. The next step is to extract the archive, and open a terminal. cd int...
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Is it better to use std::memcpy() or std::copy() in terms to performance?

...of std::copy over memcpy: 2.99% My compiler is gcc 4.6.3 on Fedora 16 x86_64. My optimization flags are -Ofast -march=native -funsafe-loop-optimizations. Code for my SHA-2 implementations. I decided to run a test on my MD5 implementation as well. The results were much less stable, so I decided to...
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Resetting generator object in Python

... Hank Gay 64.2k2929 gold badges144144 silver badges216216 bronze badges answered Aug 13 '09 at 11:18 nosklonosk...
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Twitter image encoding challenge [closed]

...stead, I store a heavily quantized color (the palette has only 4 * 4 * 4 = 64 colors) that simply gets blended in in some proportion. Mathematically, this is equivalent to a variable brightness and constant contrast adjustment for each color. Unfortunately, it also means there's no negative contra...
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What's the difference between a file descriptor and file pointer?

... unwindunwind 353k5959 gold badges436436 silver badges567567 bronze badges ...
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Mac SQLite editor [closed]

... 64 You may like SQLPro for SQLite (previously SQLite Professional - App Store). The app has a few...
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Why isn't the size of an array parameter the same as within main?

...func, it will immediately decay into a pointer to its first element. (On a 64-bit system, a 64-bit pointer is twice as large as a 32-bit int, so your sizeof ratio returns 2.) The only purpose of this rule is to maintain backwards compatibility with historical compilers that did not support passing ...
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How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

...Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc? – Thomas Dec 14 '14 at 16:11 ...
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How do I enable file editing in Visual Studio's debug mode?

...e ENC by default and it must be explicitly enabled You may be running on a 64 bit OS and have your .Net app set to "Any CPU". ENC is not available on 64 bit (CLR limitation). You'll have to set the app back to x86 for ENC to work ...