Sun Microsystems Portal Server 6 - Manual (Page 63)

Portal Sizing
Chapter 4 Pre-Deployment Considerations 63
2. Setup a controlled environment to minimize the margin of error (defined as
less than ten percent variation between identical runs).
By knowing the starting data measurement baseline, you can measure the
differences in data performance between sample gathering runs. Be sure
measurements are taken over an adequate period of time and that you are able
to capture and evaluate the results of these tests.
Plan to have a dedicated machine for generating load simulation which is
separate from the Portal Server machine. A dedicated machine helps you to
uncover the origin of performance problems.
See “Portal Sizing” on page 63 .
3. Develop and refine the prototype workload that closely simulates the
anticipated production environment agreed between you and the portal
administrators and portal developers.
See “Analysis Tools” on page 143
4. Monitor customized portal applications such as portlets.
Portal Sizing
You need to establish a baseline sizing figure for your Portal Server. With a
baseline figure established, you can then validate and refine that figure to account
for scalability, high availability, reliability, and good performance.
The portal sizing process consists of the following steps:
1. Establish Baseline Sizing Figures
2. Customize the Baseline Sizing Figures
3. Validate Baseline Sizing Figures
4. Refine Baseline Sizing Figures
5. Validate Your Final Figures
The following sections describe these steps.