Performance and scalability are two sides of the same coin. Poor performance may be indicative of a scalability problem, and scalability problems invariably lead to performance degradation. However, performance problems may also arise from causes having nothing to do with scalability, such as the inadequate deployment of system software or poorly designed applications. When looking specifically at performance risk, scalability is considered the number one factor. A company’s IT infrastructure must be able to handle the volume and types of activities, support the transaction levels it will experience after the business is up and running, manage activity spikes from the promotions, and remain accessible under unpredictable business conditions.
Periodic testing is an essential part of assessing the performance of the IT infrastructure. Benchmarks are one kind of synthetic test of performance. A benchmark procedure uses a predefined set of data and measures the results returned by the system. Benchmarks are intended to make comparisons easy. A caveat to benchmark designers, however, is that the data used may not accurately reflect what an actual end user may experience. A crucial design consideration for the benchmark program and the data employed is how to predict real-world performance. Benchmarks must be validated to prove the results are indicative of the performance experienced by the user. In order to evaluate this, the benchmark designers show that the data accurately models the workload encountered on these systems.
Perspective performance risk is significant because of its implications. If an organization cannot scale its systems to handle peak loads, end users may become aggravated and not visit the system again, leading to negative images within the organization or in the external marketplace. End users not only look for availability, but they also demand excellent performance. Performance is measured by quick response times and a fully functioning production/service line. If an organization cannot meet IT performance demands the end result will be that a company will lose money.
The following performance risks may arise through poor performance management:
Failure to manage performance risk can have the following impact:
You can find more information about IT performance risk on KnowledgeLeader by accessing the document IT Performance Risk Key Performance Indicators. Here are other KnowledgeLeader resources that might be of interest to you as well: