| 词条 | Performance operational analysis |
| 释义 |
}} In performance engineering, operational analysis[1] is a set of basic quantitative relationships between performance quantities. Basically the Operational Analysis is based on operational laws, e.g. Utilization Law, Service Demand Law, The Forced Flow Law, Little's Law and Interactive Response Time Law and is used to predict the response time, throughput, availability, reliability, security, scalability and extensibility. Simple example: utilization law for a single server systemFollowing Denning, consider a single server queuing system. It has a stream of arriving requests, which first go into a queue and then into a server --- eventually completing. This system has four basic quantities that can be observed in a finite period:
From those we can derive some more quantities:
The utilization law is U = XS. This is established by nothing more than algebra. There is a corresponding law in more general settings. See also
References1. ^The operational analysis of queuing network models External links
1 : Performance management |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。