Amazon CEO and brilliant prick Jeff Bezos seems to have lost his magic touch lately. Investors, employees, and authors are all lashing out against different elements of Bezos' business practices. Don't worry, Jeff: Amazon has just the thing to improv…

原文地址:http://www.codeproject.com/Tips/1023621/SQL-Performance-Improvement-Techniques This article provides various options to improve the performance in database. 1) Re-Write Query: If any query is taking much time to execute then the first step is to…

BACKGROUND OF THE INVENTION A conventional virtual-machine monitor (VMM) typically runs on a computer and presents to other software the abstraction of one or more virtual machines. Each virtual machine may function as a self-contained platform, runn…

Summary Spark does not have a good mechanism to select reasonable RDDs to cache their partitions in limited memory.  --> Propose a novel selection algorithm, by which Spark can automatically select the RDDs to cache their partitions in memory accordi…

Ceilometer的数据采集agent会定期对nova/keystone/neutron/cinder等服务调用其API的获取信息,默认是20秒一次, # Polling interval for pipeline file configuration in seconds. # (integer value) #pipeline_polling_interval = 这在大规模部署中会对OpenStack服务节点造成很大压力,增加节点CPU负载. 在Ceilometer的L版本中有一个针对性…

http://queue.acm.org/detail.cfm?id=1854041 The July/August issue of acmqueue is out now acmqueue is free for ACM professional members. Non-members can purchase an annual subscription for $19.99 or a single issue for $6.99. Download the app from iTune…

本文转自:https://www.mgt-commerce.com/blog/magento-on-steroids-best-practice-for-highest-performance/ There are plenty of blog posts with tips how to increase the performance of a magento store this shows us how important the speed of a magento store is.…

http://www.wenxuecity.com/news/2016/12/01/5813342.html 首先,让我们来回顾一下这起事件.两天前在某论坛中,有同学发了这么一个帖子,大致意思是说有一个在Amazon工作的年轻工程师,被中东上司刁难后不幸被pip.他在给全公司发出一封群发邮件后选择跳楼轻生(根据Bloomberg消息),最后自杀未遂被送往医院救治. 前情提要 事件发生后的第一时间,我们找到了同在Amazon工作的朋友们了解了一些关于Amazon公司文化的一些的不合理之处.这里先为…

原文:http://www.javaworld.com/article/2077523/build-ci-sdlc/java-tip-26--how-to-improve-java-s-i-o-performance.html JDK 1.0.2 的 java.io 包暴露了非常多I/O性能问题.这里将介绍一个优化方案,附加一个关闭同步的方法. Java的I/O性能以前是非常多Java应用的瓶颈.主要原因就是JDK1.0.2的java.io包的不良设计和实现.关键问题是缓冲.绝大多数java.i…

转自:http://www.alexecollins.com/spring-boot-performance/ 官方优化文档: https://spring.io/blog/2015/12/10/spring-boot-memory-performance SPRING BOOT PERFORMANCE This is an article on how to improve the performance of Spring Boot applications. I've recently b…