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Why are primes important in cryptography?
... @stujo: same principles will rule when all of us use Quantum CPUs, as primes can keep growing, its all about finding larger, impractical for quantum CPUs, the problem exists if some use regular CPUS to create keys, and some use Quantum CPUs to break those. The power of quantum CPUs, as...
Best way to check if object exists in Entity Framework?
...housands of database calls were being made to check for duplicates (so the CPU sent a lot of time at 100%). In the end I decided to keep the last 100,000 records cached in memory. This way I could check for duplicates against the cached records which was extremely fast when compared to a LINQ quer...
SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...本不能高于SSMS的版本，否则会出现各种各样意想不到的问题。
SSMS2008一般采用VS2005或VS2008开发，SSMS2012采用VS2012开发。SSMS2008与SSMS2012一些获取对象等细节方面也有少量差异。最好使用各自的VS版本生成基本代码后，再添砖加瓦...
Java logical operator short-circuiting
... short-circuiting.
Note that this is more than an attempt at saving a few CPU cycles: in expressions like this
if (mystring != null && mystring.indexOf('+') > 0) {
...
}
short-circuiting means a difference between correct operation and a crash (in the case where mystring is null)....
Visual studio long compilation when replacing int with double
...ibrary routines to do the translation, while integer math can just use the CPU instructions. At the time the IEEE defined the standard, they made some choices that were very uncommon in implementation, and especially that long ago much more expensive to implement in microcode, and of course the curr...
GIF Animated 扩展：可点击透明背景动画GIF播放器 · App Inventor 2 中文网
...机测试，就会发现图片不会动，只会展示静态图片。那么问题来了，如何展示动图/动画效果呢？有2种思路参考这里。
当然，也可以使用本文介绍的这款拓展~
Gif 动画扩展，可点击，可设置透明背景，效果如下：
参考代码块...
Why is my program slow when looping over exactly 8192 elements?
...e div per pixel. Each loop using less local var than there are register in CPU. The other require 7 increments, 6 decrements, 1 div and between 10 to 20 mul for addressing depending on compiler optimization. Also each instruction in the loop require the result of the previous instruction, this disca...
How do I generate a random int number?
...GCryptoServiceProvider” class.
Random class takes seed values from your CPU clock which is very much predictable. So in other words RANDOM class of C# generates pseudo random numbers , below is the code for the same.
var random = new Random();
int randomnumber = random.Next()
While the RNGCrypt...
What is a deadlock?
...resource A and having a long process. Thread B waiting to lock resource A. CPU time usage : 20%, can you consider that a deadlock situation?
– rickyProgrammer
Sep 28 '17 at 16:37
2...
Sending a message to nil in Objective-C
... but you save programmer time, which is a far more expensive resource than CPU time. In addition, you're eliminating more code and more conditional complexity from your application.
Clarifying for downvoters: you may think this is not a good way to go, but it's how the language is implemented, and ...