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What is the optimal length for user password salt? [closed]
...pical three strikes locked out for 15 minutes is better. Are you "wasting" CPU cycles to do this? Yeah, whatever. The CPU spends more time idle than not on most websites anyway, so what does it matter? If you're running into performance issues, scale out.
– Randolpho
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How to detect DIV's dimension changed?
...ion. It uses an event-based approach, so it's damn fast and doesn't waste CPU time.
Example:
new ResizeSensor(jQuery('#divId'), function(){
console.log('content dimension changed');
});
Please do not use the jQuery onresize plugin as it uses setTimeout() in combination with reading the DOM...
Performance of Java matrix math libraries? [closed]
...composition of a random 1024x1024 matrix.
Machine: Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz, linux x64
Octave code: A=rand(1024); tic;[U,S,V]=svd(A);toc
results execution time
---------------------------------------------------------
Octave ...
Volatile vs Static in Java
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What is the cache when you say "locally cached"? CPU cache, some kind of JVM cache?
– mert inan
Dec 17 '12 at 21:15
6
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Why does this code using random strings print “hello world”?
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I'll just leave it here. Whoever has a lot of (CPU) time to spare, feel free to experiment :) Also, if you have mastered some fork-join-fu to make this thing burn all CPU cores (just threads are boring, right?), please share your code. I would greatly appreciate it.
publ...
Is memcached a dinosaur in comparison to Redis? [closed]
...ance peak with only a few concurrent requests since it only makes use of 1 cpu core/thread. The suggested method of circumventing this is to run multiple instances of Redis on one machine with consistent hashing, but this is a really poor solution. So if you need high concurrency and have multi-core...
站长投放广告绝对不做的事:Google Adsense和百度联盟广告违规分析 - 更多技...
...告，这样的行为是被Google Adsense禁止的。
二、1、版权问题的网站博客禁止投放Google Adsense。主要是音乐MP3、视频、新闻组和图像结果等内容的网页上。例如电影类的网站、纯粹的新闻网站、纯粹的图片网站、引用第三方的视频...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
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My data is not sorted and my tests are on iPhone arm CPU. Your results with different data and CPU may differ.
– jjxtra
Feb 3 '17 at 14:24
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Should I embed images as data/base64 in CSS or HTML
...a terrible strain on the server's resources! Images are traditionally very CPU intensive to compress, with very little reduction in size.
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What is the native keyword in Java for?
...is could be used to:
write faster code on a critical section with better CPU assembly instructions (not CPU portable)
make direct system calls (not OS portable)
with the tradeoff of lower portability.
It is also possible for you to call Java from C, but you must first create a JVM in C: How to ...