Performance issues can seem very mysterious when first encountered and often the only way to solve them is to use a very methodical approach. I have touched on this before, but it seems relevant to add a little more detail. Continue reading ‘Performance problem solving process’ »
Posts tagged ‘performance’
It is interesting that the issue of how green IT can be viewed as is coming to the fore. I was recently sent a notification of the existence of the following site:
Among its articles is this one about the green IT:
http://www.businessgreen.com/financial-director/comment/2214911/emerald-city
The article concentrates surveys about the state of green IT, and the lack of trust that IT purchasers have in the “Green” claims of suppliers. The rush to green wash products is leaving many, me included, sceptical that the benefits extend to the environment and purchasers bank balance – rather than the suppliers. Continue reading ‘From the news: Green IT’ »
Table of contents for Performance Model Example
Having defined the key system functions and the user population it is now necessary to define how the users place a functional demand on the system. (The online version of this article has more detail again.) The first part of this definition is to lay out how the usage of the system varies over time. Thus the relative usage of the system needs to be defined. The initial definitions are on an intra-hour, hourly, daily, weekly and monthly basis. These figures effectively have no units and simply provide a relative level of usage. Thus any metrics that are available to allow calibration of this data can be used. As an example, estimated percentage utilisation of the system for the time period could be provided. Alternatively, there may be historical data available from a production system. Continue reading ‘Example: Usage Definition’ »
