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When to use LinkedList over ArrayList in Java?
...hough the CMS collector takes more resources and does not achieve the same raw throughput, it is a much better choice because it has more predictable and smaller latency.
ArrayList is only a better choice for performance if all you mean by performance is throughput and you can ignore latency. In m...
How do function pointers in C work?
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@ajay It looks like he's writing raw hexidecimal values (for instance '\x00' is the same as '/0', they're both equal to 0) into a string, then casting the string into a C function pointer, then executing the C function pointer because he's the devil.
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?
...are generally suited for photographs. It is not suited for illustrations, drawings and text, as compression artifacts from compressing the image will standout. Lossy compression, as its name implies, does not encode all the information of the file, so when it is recovered into an image, it will not ...
How do I get Windows to go as fast as Linux for compiling C++?
...0% of disk partitions is much faster than the rest of the disk in terms of raw transfer time. Narrower partitions also help minimize seek times.
Are you using RAID? If so, you may need to optimize your choice of RAID type (RAID-5 is bad for write-heavy operations like compiling)
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How do you convert a byte array to a hexadecimal string, and vice versa?
...u need to do these conversion, you tend to do them a lot. If someone needs raw speed, they just run the benchmarks with some appropriate test data in their desired computing environment. Then, tuck that method away into an extension method where you never look its implementation again (e.g., bytes.T...
Is it possible to print a variable's type in standard C++?
...k. Additionally, the output of this depends on the compiler. It might be a raw type name or a name mangling symbol or anything in between.
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Best Practices: Salting & peppering passwords?
...uite easy to shoot yourself in the foot. For 99.9% of the users out there, raw bcrypt is more than sufficient for all but the simplest passwords...
– ircmaxell
Jun 4 '13 at 14:56
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传感器组件 · App Inventor 2 中文网
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检测简单步数时(简单步数,距离)
当检测到原始步骤(raw step)时运行此事件。
检测行走步数时(行走步数,距离)
当检测到步行步骤(walking step)时触发此事件。步行步骤是看起来涉及向前运动的步骤。
方法
复位()
重置...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
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CCM: A nonce-based AEAD scheme that combines CTR mode encryption and the raw
CBC-MAC. Inherently serial, limiting speed in some contexts. Provably secure, with good bounds, assuming the underlying blockcipher is a good PRP. Ungainly construction that demonstrably does the job. Simpler to implement...
How do emulators work and how are they written? [closed]
...nclude code that interfaces with the host system's OS, for example to use drawing and sound.
Considering the very slow performance of old video games (NES/SNES, etc.), emulation is quite easy on modern systems. In fact, it's even more amazing that you could just download a set of every SNES game ev...