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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...：
shell> sysctl vm.drop_caches=1
平时可以通过mongo命令行来监控MongoDB的内存使用情况，如下所示：
mongo> db.serverStatus().mem:
{
"resident" : 22346,
"virtual" : 1938524,
"mapped" : 962283
}
还可以通过mongostat命令来监控MongoDB的内存使...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...：
shell> sysctl vm.drop_caches=1
平时可以通过mongo命令行来监控MongoDB的内存使用情况，如下所示：
mongo> db.serverStatus().mem:
{
"resident" : 22346,
"virtual" : 1938524,
"mapped" : 962283
}
还可以通过mongostat命令来监控MongoDB的内存使...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...是一个例子：
void main()
{
puts("hello");
// 定义受监控的代码模块
__try
{
puts("in try");
}
//定义异常处理模块
__except(1)
{
puts("in except");
}
puts("world");
}
1. 受监控的代码模块被执行（...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...跳过连接事件，继续保持睡眠节省电量。Supervision Time-out监控超时，是两次成功连接事件之间的最长时间。如果在此时间内没有成功的连接事件，设备将终止连接并返回到未连接状态。该参数值以10 ms为单位，监控超时值可以从...
What is the most accurate way to retrieve a user's correct IP address in PHP?
I know there are a plethora of $_SERVER variables headers available for IP address retrieval. I was wondering if there is a general consensus as to how to most accurately retrieve a user's real IP address (well knowing no method is perfect) using said variables?
...
Getting visitors country from their IP
I want to get visitors country via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... )
2...
How do I get user IP address in django?
How do I get user's IP in django?
11 Answers
11
...
Pointer to pointer clarification
...an address, it returns the object at that memory address. So when you do *ipp = ip2, what you are doing is *ipp get the object at the address held in ipp which is ip1 and then assign to ip1 the value stored in ip2, which is the address of j.
Simply
& --> Address of
* --> Value at
...
Get the client IP address using PHP [duplicate]
I want to get the client IP address who uses my website. I am using the PHP $_SERVER superglobal:
5 Answers
...
How to validate IP address in Python? [duplicate]
What's the best way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
...