The Influence of the Network on Performance

As mentioned before, the productivity of a user in a classical online transaction processing system like SAP R/3 is affected mostly by the response time of the system (see Figure 7-1). Low response times are the Holy Grail of a infrastructure. From a user's perspective, response time is the time waiting for a system response after hitting the <Enter> key. Even seconds of delay easily accumulates to hours and days over time, especially when multiplied by hundreds of users. Therefore, IT investments keeping the network response time to a minimum are usually worthwhile.

Figure 7-1. Average End-to-End Response Time

In the chapter dedicated to sizing, we introduced the factors influencing the response ...

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