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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: ...
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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: ...
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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...
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Find files containing a given text

...| edited May 27 '11 at 14:05 answered May 27 '11 at 13:58 M...
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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)...
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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...
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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...
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Get item in the list in Scala?

...new one. – Rex Kerr Feb 13 '11 at 1:05 ...
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How to have no pagebreak after \include in LaTeX

... answered Jul 31 '09 at 0:05 Léo Léopold Hertz 준영Léo Léopold Hertz 준영 114k154154 gold badges410410 silver badges644644 bronze badges ...
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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 ...