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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...下文的,最好放在MongoDB的启动脚本里。
有时候,MongoDB连接数过多的话,会拖累性能,可以通过serverStatus查询连接数:
mongo> db.serverStatus().connections
每个连接都是一个线程,需要一个Stack,Linux下缺省的Stack设置一般比较大:
...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...下文的,最好放在MongoDB的启动脚本里。
有时候,MongoDB连接数过多的话,会拖累性能,可以通过serverStatus查询连接数:
mongo> db.serverStatus().connections
每个连接都是一个线程,需要一个Stack,Linux下缺省的Stack设置一般比较大:
...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...存管理算法会带来明显的性能提升。比如nginx, 它在每个连接accept后
需求
系统的物理内存是有限的,而对内存的需求是变化的, 程序的动态性越强,内存管理就越重要,选择合适的内存管理算法会带来明显的性能提升。
比...
Find files containing a given text
...|
edited May 27 '11 at 14:05
answered May 27 '11 at 13:58
M...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...7,32767);
m_allmsg.ReplaceSel(msg);
}else{
MessageBox("无法连接到服务器!");
closesocket(sock);
WSACleanup();
}
}
GetDlgItem(IDC_DISCONNECT)->EnableWindow(TRUE);
GetDlgItem(IDC_SEND)->EnableWindow(TRUE);
GetDlgItem(IDC_CHANGENAME)->EnableWindow(TRUE)...
How to convert a Title to a URL slug in jQuery?
...d try
slug($('#field').val())
original by: http://dense13.com/blog/2009/05/03/converting-string-to-slug-javascript/
EDIT:
extended for more language specific chars:
var from = "ÁÄÂÀÃÅČÇĆĎÉĚËÈÊẼĔȆĞÍÌÎÏİŇÑÓÖÒÔÕØŘŔŠŞŤÚŮÜÙÛÝŸŽáäâàãåčçćďéě...
What encoding/code page is cmd.exe using?
...out), _O_U16TEXT) which was introduced in VS2008. See stackoverflow.com/a/9051543, and stackoverflow.com/a/12015918, and msdn.microsoft.com/en-us/library/tw4k6df8(v=vs.90).aspx Besides obvious portability differences between _setmode() and SetConsoleOutputCP(), there may also be other subtleties and...
Get item in the list in Scala?
...new one.
– Rex Kerr
Feb 13 '11 at 1:05
...
How to have no pagebreak after \include in LaTeX
...
answered Jul 31 '09 at 0:05
Léo Léopold Hertz 준영Léo Léopold Hertz 준영
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How do I set a variable to the output of a command in Bash?
...ion, shorter or quicker, more or less system friendly...
3rd Edit: 2020-09-05: About {fdname}<> syntax under bash See at top of bash features section.
2nd Edit 2018-02-12: Added a different way, search at the bottom of this for long-running tasks!
2018-01-25 Edit: added a sample function (for ...