When we are talking about performance of Kafka Producer, we are really talking about two different things: latency: how much time passes from the time KafkaProducer.send() was called until the message shows up in a Kafka broker. throughput: how many…
In this Document Purpose Scope Details A) Database Init.ora Parameters B) Concurrent Program Controls setup C) General Ledger Optimizer program C.1) To create and drop indexes for your chart of accounts segments: C.2) To update statis…
This section provides solutions to some performance problems, and describes configuration best practices. Important: If you are running CDH over 10Gbps Ethernet, improperly set network configuration or improperly applied NIC firmware or drivers can…
终于结束这本书了,最后两章的内容在官方文档中都有详细介绍,简单过一遍.. 首先是数据备份,最简单直接的就是用 mysql 的内置工具 mysqldump MySQL 8.0 Reference Manual / Backup and Recovery / Using mysqldump for Backups / Dumping Data in SQL Format with mysqldump 导入也巨简单,因为导出文件是 .sql 直接用 source 就 ok 了. 另外,需要…
https://msdn.microsoft.com/en-us/library/ff647787.aspx Retired Content This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that we…
When a golf player is first learning to play golf, they usually spend most of their time developing a basic swing. Only gradually do they develop other shots, learning to chip, draw and fade the ball, building on and modifying their basic swing. In a…
BACKGROUND OF THE INVENTION The use of a cache memory with a processor facilitates the reduction of memory access time. The fundamental idea of cache organization is that by keeping the most frequently accessed instructions and data in the fast cache…
compared all possibilities with a long test sheet: 0,140625 sec for lastrow = calcws.Cells.Find("*", [A1], , , xlByColumns, xlPrevious).row 0 sec for iLastRow = calcws.Cells(rows.count, "a").End(xlUp).row and numofrows = calcws.Cells.S…
Performance Considerations for Entity Framework 5 By David Obando, Eric Dettinger and others Published: April 2012 1. Introduction Object-Relational Mapping frameworks are a convenient way to provide an abstraction for data access in an object-orient…
1. Weakly Named Assembly vs Strong Named Assembly Weakly named assemblies and strongly named assemblies are structurally identical—that is, they use the same portable executable (PE) file format, PE32(+) header, CLR header, metadata, manifest…
超文本传输协议版本 2 IETF HTTP2草案(draft-ietf-httpbis-http2-13) 摘要 本规范描述了一种优化的超文本传输协议(HTTP).HTTP/2通过引进报头字段压缩以及多路复用来更有效利用网络资源.减少感知延迟.另外还介绍了服务器推送规范. 本文档保持对HTTP/1.1的后向兼容,HTTP的现有的语义保持不变. 1 介绍 The Hypertext Transfer Protocol (HTTP) is a wildly successful protocol.…
11 Clever Methods of Overfitting and how to avoid them Overfitting is the bane of Data Science in the age of Big Data. John Langford reviews "clever" methods of overfitting, including traditional, parameter tweak, brittle measures, bad statistic…
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…
Web service standards: SOAP, REST, OData, and more So far, we've covered the components of a web service, the messaging format and transport protocols. But in the eye of the developer, the development manager, and the IT professional,the real choice…
P6 Professional Installation and Configuration Guide (Microsoft SQL Server Database) 16 R1 May 2016 Contents About This Guide...................................................................................... 11 Shared Topics in This Guide .…
Adit Deshpande CS Undergrad at UCLA ('19) Blog About The 9 Deep Learning Papers You Need To Know About (Understanding CNNs Part 3) Introduction Link to Part 1Link to Part 2 In this post, we’ll go into summarizing a lot of the new and important develo…
The Exceptional Performance team has identified a number of best practices for making web pages fast. The list includes 35 best practices divided into 7 categories. Looking to optimize your mobile app experience? Check out Flurry Analytics. Filter by…
原文地址: LMAX is a new retail financial trading platform. As a result it has to process many trades with low latency. The system is built on the JVM platform and centers on a Business Logic Processor that can handle 6 million orders per second on a sing…
http://highscalability.com/blog/2016/1/25/design-of-a-modern-cache.html MONDAY, JANUARY 25, 2016 AT 8:56AM This is a guest post by Benjamin Manes, who did engineery things for Google and is now doing engineery things for a new load documentation star…
不要未经书面许可转载 第三章是长,因为,我会分几个部分来翻译. Advanced Playbooks So far the playbooks that we have looked at are simple and just run a number of modules in order. Ansible allows much more control over the execution of your playbook. Using the following techniques,…
Event Sourcing pattern Instead of storing just the current state of the data in a domain, use an append-only store to record the full series of actions taken on that data.The store acts as the system of record and can be used to materialize the domai…
