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MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...下，出于方便性的考虑，程序访问的都是虚拟内存地址，然后操作系统会通过Page Table机制把它翻译成物理内存地址，详细说明可以参考Understanding Memory和Understanding Virtual Memory，至于程序是如何使用虚拟内存的，可以参考Playing wit...
MyISAM versus InnoDB [closed]
... takes 5 seconds.
While the UPDATE is in progress, say 2.5 seconds in, hit Ctrl-C to interrupt it.
Observe the effects on the table. How many rows were updated? How many were not updated? Is the table even readable, or was it corrupted when you hit Ctrl-C?
Try the same experiment with UPDATE agai...
Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...rface注释
自己创建一个注释接口名字为@JavascriptInterface，然后将其引入。注意这个接口不能混淆。这种方式不推荐，大概在4.4之后有问题。
注，创建@JavascriptInterface代码
public @interface JavascriptInterface {
}
代码混淆问题
如...
How to resolve merge conflicts in Git?
...s is what gets saved in the repo
You can navigate among these views using ctrl+w. You can directly reach MERGED view using ctrl+w followed by j.
More info about vimdiff navigation here and here
Step 4. You could edit the MERGED view the following way
If you want to get changes from REMOTE
:diffg RE...
原子vector的一种实现源码(atomic-vector) - C/C++ - 清泛网 - 专注C/C++及内核技术
...成了独立运行的版本，代码比较简单，实现分配好空间，然后对元素进行原子交换，扩容采用链表的形式，代码可直接运行。
测试代码：
HPHP::AtomicVector<float> v_atom(2, 0.f);
void atom_vector_hphp() {
v_atom.exchange(0, 1);
v_atom.exchange(...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取数据，栈中的每个数据通过索引值进行定位，索引值为正时表示相对于栈底的偏移索引，索引值为负时表示相对于栈顶的偏移索引，索引值以1或-1为起始值，因此...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...d3/log
5、规划5个组件对应的端口号，由于一个机器需要同时部署 mongos、config server 、shard1、shard2、shard3，所以需要用端口进行区分。这个端口可以自由定义，在本文 mongos为 20000， config server 为 21000， shard1为 22001 ， shard2为22002...
Which commit has this blob?
... on first match, SIGPIPE’ing the git-ls-tree.) When I tried it, I had to Ctrl-C your script after 30 seconds; mine was done in 4.
– Aristotle Pagaltzis
Oct 22 '08 at 0:01
1
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How do I prompt for Yes/No/Cancel input in a Linux shell script?
...directory, than you could use readline's history commands, like Up, Down, Ctrl+r and others.
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How do I obtain a Query Execution Plan in SQL Server?
...oft SQL Server Management Studio
For Estimated Query Plan you can press Ctrl + L or the following button.
For Actual Query Plan, you can press Ctrl +
M or the following button before executing query.
For Live Query Plan, (only in SSMS 2016) use the following button before executing quer...