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Performance testing
HP continues to upgrade existing HP ProLiant servers and introduce new servers to meet particular
business needs. To help customers select the appropriate server for their particular HP SBC
environment, HP publishes this and other performance briefs to characterize individual server
performance and scalability.
This section describes the test environment and test scenarios used to determine the optimal number of
users supported by an HP ProLiant BL35p server blade in an HP SBC environment.
Note:
HP makes a distinction between the optimal number of users that
can be supported on a particular server configuration and the
maximum number. The optimal number is a more practical metric
that reflects the number of users that can be supported without
impacting user response times.
Historically, HP has defined the optimal value as the number of
users that are active when processor utilization reaches 80%. After
processor utilization passes 80%, additional users are supported;
however, response times may become unacceptable.
Scalability metrics specified in this Performance Brief reflect the
optimal number of users.
Test tools and scripts
HP used a range of test tools and scripts to simulate typical HP SBC user workloads.
Tools
Terminal Services Scalability Planning Tools (TSScaling), a suite of tools developed by Microsoft®,
helps organizations with Microsoft Windows® Server 2003 Terminal Server capacity planning. These
tools facilitate the placement and management of simulated loads on an HP SBC server.
Table 2 outlines the components of the TSScaling suite.
Table 2: Components of TSScaling
TSScaling suite component Description
Robosrv.exe Drives the server-side of the load simulation Automation tools
Robocli.exe Helps drive the client-side of the load simulation
Qidle.exe Determines if any scripts have failed and require operator
intervention
Test tools
Tbscript.exe A script interpreter that helps drive the client-side load
simulation
TBScript.doc Terminal Server bench scripting documentation
TSScalingSetup.doc A scalability test environment set-up guide
Help files
TSScalingTesting.doc A testing guide
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