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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...oe的基础上增加了4）快速恢复
慢热启动算法 – Slow Start
首先，我们来看一下TCP的慢热启动。慢启动的意思是，刚刚加入网络的连接，一点一点地提速，不要一上来就像那些特权车一样霸道地把路占满。新同学上高速还是...
What is JavaScript's highest integer value that a number can go to without losing precision?
...
@ninjagecko, he starts at MAX_INT so the end is right there. Also using i+= 1000000000 would make it no longer an infinite loop. Try it.
– Ted Bigham
Jan 5 '16 at 0:52
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How to scale threads according to CPU cores?
...ing on what work you are doing and how you setup your thread.
yourThread.start();
}
For more information on creating your own thread, head to this tutorial. Also, you may want to look at Thread Pooling for the creation of the threads.
...
How to escape % in String.Format?
...Buffer();
while (m1.find())
m1.appendReplacement(buf, log.substring(m1.start(), m1.start(2)) + "%%" + log.substring(m1.end(2), m1.end()));
// Return the sanitised message
String escapedString = m1.appendTail(buf).toString();
This works with any number of formatting characters, so it will repl...
How do I integrate Ajax with Django applications?
...the SO spirit, I love this question, because I had the same trouble when I started, so I'll give you a quick guide. Obviously you don't understand the principles behind them (don't take it as an offense, but if you did you wouldn't be asking).
Django is server-side. It means, say a client goes to ...
What is the most elegant way to remove a path from the $PATH variable in Bash?
...es no different to the other cases? If the path already had colons at the start and end, we could simply search for our desired string wrapped with colons. As it is, we can easily add those colons and remove them afterwards.
# PATH => /bin:/opt/a dir/bin:/sbin
WORK=:$PATH:
# WORK => :/bin:/...
Where can I set environment variables that crontab will use?
...n using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The '~/.cronfile' is a variation on my profile for use by cron - rigorously non-interactive and no echoing for the sake of being noisy. You could arrange to execute the .profile and so on instead. (The REAL_HOME st...
Move the mouse pointer to a specific position?
...e between forced downloading into a sandbox and then userspace downloading started by user interaction. The security implications are actually very big.
– Martin Jespersen
Apr 12 '12 at 18:50
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Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...idea, but now i get this crazy error that is too long to post here, but it starts with warning: untitled.pyx:8:49: Buffer unpacking not optimized away.
– Noob Saibot
Feb 2 '13 at 2:32
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How do I determine k when using k-means clustering?
...ters" by Dan Pelleg and Andrew Moore in ICML 2000.
Another approach is to start with a large value for k and keep removing centroids (reducing k) until it no longer reduces the description length. See "MDL principle for robust vector quantisation" by Horst Bischof, Ales Leonardis, and Alexander Se...