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微软正式推送Win10,不满意或者不习惯可以回滚至旧版 - 资讯 - 清泛网 - 专...
微软正式推送Win10,不满意或者不习惯可以回滚至旧版今天无疑是微软新款操作系统Win10的大日子,被视作继Win7之后又一个能够带微软重回巅峰的系统作品,Win10推送全面开启,Win7、Win8用户从今日零点起就可以免费升级到Win10,...
探讨nginx与php-fpm是不是以多进程多线程方式运行的 - 更多技术 - 清泛网 -...
...不是以多进程多线程方式运行的Nginx在nginx的配置文件中可以设置开启多少个nginx进程,如下:worker_processes 2;同时也可以设置每个进程的最大连接数,如下:worker_co Nginx
在nginx的配置文件中可以设置开启多少个nginx进程,如下:...
Linux C++程序内存占用过高的原因分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...为0的话,考虑可能是内存碎片过多导致的,这种情况下可以考虑使用 jemalloc,使用preload方式载入 jemalloc,接替系统的内存分配函数,可极大消除内存碎片问题。
valgrind 内存泄漏 jemalloc
控件重绘函数/消息OnPaint,OnDraw,OnDrawItem,DrawItem的区别 - C/C++ - 清...
...自画,你就必须重载CListBox的DrawItem方法和MeasureItem方法才可以,但象菜单,按钮等的自画则会调用OnDrawItem。
OnPaint和OnDrawItem不在一个范畴内,他是WM_PAINT的响应函数,凡是基于CWnd的类都有OnPaint事件发生,就是说凡是窗口都有WM...
开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...性能上大约比sendmail快三倍。一部运行postfix的台式PC每天可以收发上百万封邮件。
3. 兼容性好:
postfix是sendmail兼容的,从而使sendmail用户可以很方便地迁移到postfix。Postfix支持/var[/spool]/mail、/etc/aliases、 NIS、和 ~/.forward 文件。 ...
What is a good regular expression to match a URL? [duplicate]
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function isURL(str) {
var urlRegex = '^(?!mailto:)(?:(?:http|https|ftp)://)(?:\\S+(?::\\S*)?@)?(?:(?:(?:[1-9]\\d?|1\\d\\d|2[01]\\d|22[0-3])(?:\\.(?:1?\\d{1,2}|2[0-4]\\d|25[0-5])){2}(?:\\.(?:[0-9]\\d?|1\\d\\d|2[0-4]\\d|25[0-4]))|(?:(?:[a-z\\u00a1-\\uffff0-9]+-?)*[a-z\\u00a1-\\uffff0-9]+)(?:\\...
How to add http:// if it doesn't exist in the URL?
...L if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answers
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Main differences between SOAP and RESTful web services in Java [duplicate]
...describing Web services and how to access them. It will run on SMTP, HTTP, FTP, etc. It requires middleware support and well-defined mechanism to define services like WSDL+XSD and WS-Policy.
SOAP will return XML based data
REST
Representational State Transfer (RESTful) web services. They are seco...
笨法玩电商网站秒杀 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...因素直线下降,在这种场景下,单纯的关闭死锁检测虽然可以提升一定的性能,但这顶多是治标而已,如何治本?淘宝给出来两个改进方法:
请求排队:如果请求一股脑的涌入数据库,势必会由于争抢资源造成性能下降,通...
How to get error information when HttpWebRequest.GetResponse() fails
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I came across this question when trying to check if a file existed on an FTP site or not. If the file doesn't exist there will be an error when trying to check its timestamp. But I want to make sure the error is not something else, by checking its type.
The Response property on WebException will ...
