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How to determine CPU and memory consumption from inside a process?
... now;
lastUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
Linux
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the kern...
How do I check to see if a value is an integer in MySQL?
...lar expression. Simply do
select field from table where field REGEXP '^-?[0-9]+$';
this is reasonably fast. If your field is numeric, just test for
ceil(field) = field
instead.
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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
When passing argument to main() in a C or C++ application, will argv[0] always be the name of the executable? Or is this just a common convention and not guaranteed to be true 100% of the time?
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How to get line count of a large file cheaply in Python?
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How to access the local Django webserver from outside world
...o successfully run it using python manage.py runserver . If I access 127.0.0.1:port locally from the webserver, I get the Django page indicating it worked.
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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...Cleanup，所以我在Cleanup的最后执行MySetFileDate(DokanFileInfo, 0)来清空标志，而没有在CreateFile里清空标志。
7.MoveFile: 这个回调函数仅在移动虚拟磁盘里的文件到另一个虚拟磁盘目录中去时才触发，故实现在远程目录中同步移动文件后...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...ersion v2.4.6
……..
[initandlisten] waiting for connections on port 27017
[websvr] admin web console waiting for connections on port 28017
mongodb默认自带提供了web访问接口，通过 IP + 端口的形式可以访问。
http://192.168.0.1:28017/
二、主从模式。使用mysql数...
Python 3.x rounding behavior
I was just re-reading What’s New In Python 3.0 and it states:
11 Answers
11
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What's the best way to send a signal to all members of a process group?
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308
You don't say if the tree you want to kill is a single process group. (This is often the case ...
Numpy first occurrence of value greater than existing value
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207
This is a little faster (and looks nicer)
np.argmax(aa>5)
Since argmax will stop at the f...