http://www.cnblogs.com/fullhouse/archive/2012/01/05/2313105.html http://www.cnblogs.com/fullhouse/archive/2012/01/05/2312953.html http://www.cnblogs.com/fullhouse/archive/2012/01/05/2312956.html http://www.cnblogs.com/tonyssc/p/3393221.html http://ww…

Chrome DevTools & performance & keywords performance / 优化性能 https://developers.google.com/web/updates/2020/05/devtools utm_source https://developers.google.com/web/updates/2020/05/devtools?utm_source=devtools#performance 以用户为中心的性能指标 https://github…

Use an append-only store to record the full series of events that describe actions taken on data in a domain, rather than storing just the current state, so that the store can be used to materialize the domain objects. This pattern can simplify tasks…

在进行ETL开发时,数据类型(Data Type)是最基础的,但也容易被忽略,楼主使用的SQL Server 版本是2012,用此博文记录,常用的SSIS数据类型和TSQL数据类型的映射.SSIS的数据类型,是指数据流组件使用的数据类型和变量的数据类型(Data Flow 和 Variable). 当数据进入Package的data flow task中时,SSIS 通过数据源组件从数据源抽取(extract)数据,获取元数据类型,并转换成SSIS支持的数据类型,SSIS的数据类型主要分为三类:…

Segregate operations that read data from operations that update data by using separate interfaces. This pattern can maximize performance, scalability, and security; support evolution of the system over time through higher flexibility; and prevent upd…

Updating related data¶ 7 of 7 people found this helpful The Contoso University sample web application demonstrates how to create ASP.NET Core 1.0 MVC web applications using Entity Framework Core 1.0 and Visual Studio 2015. For information about the t…

好久没折腾电脑了,这几天在E盘装了个64位Windows 10 TH2 专业版,从MSDN官网下载的英文原版镜像,用kms10未能激活,一看日志文件,说我这是零售版,后面就关掉了什么监听端口,然后就完事了.slmgr /xpr 显示windows is in notification mode, 再看系统信息, 显示无法连接激活服务器.今天换了个激活软件终于激活,看了一下任务计划里面,每分钟执行一次那个激活程序,这样就保持一直激活,而不再是180天后过期.不过每分钟激活一次,至于这样吗? 想把计…

https://en.wikipedia.org/wiki/Symmetric_multiprocessor_system A symmetric multiprocessor system (SMP) is a multiprocessor system with centralized shared memory called main memory (MM) operating under a single operating system with two or more homogen…

Abstract – In many practical data mining applications such as web page classification, unlabeled training examples are readily available but labeled ones are fairly expensive to obtain. Therefore, semi-supervised learning algorithms such as co-traini…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…