Compaq 108164-003 - ProLiant - 800 White Paper page 8

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Table 2: ILS Operations Measured
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ILS Operation Definition and Comments
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Connect Connection to the ILS directory service. This operation must be done before any
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application can use ILS and is always done at least once by all ILS applications. The
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performance of the LDAP command sequence CONNECT, BINDSIMPLE
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ANONYMOUS, and QUIT was measured to simulate this operation. Note, LDAP
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requires that CONNECT and a form of BIND are always paired and that a QUIT
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must be issued before another CONNECT from the same client.
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**
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Add Add a new online user to the ILS directory. This operation is done after a Connect
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operation to make the new user accessible to ILS applications. It is done only once
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by an ILS application, typically just after the connection is made. We measured
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performance by doing one LDAP CONNECT and one BINDSIMPLE
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ANONYMOUS, then issuing 100 LDAP ADD commands, and then issuing an
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LDAP QUIT command.
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**
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Direct Search the ILS directory for a specified user. It must be done after a Connect
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Lookup operation. This is typically the most frequent ILS operation. We measured
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performance by doing one LDAP CONNECT and one BINDSIMPLE
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ANONYMOUS, then issuing 100 ILS SEARCH RETURN ALL commands looking
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for a random user, and then issuing an LDAP QUIT command.
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**
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** Disk performance is not a significant factor affecting ILS performance, and the amount of
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memory on a system is not a significant factor affecting PS performance.
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ILS User Scenario
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With a goal of determining how many users the SUT can support, a scenario to represent a typical
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ILS user was developed (see Table 3).
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Table 3: ILS User Scenario
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Operation #
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1
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2
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3
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5
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6
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7
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8
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9
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Other user scenarios are possible and different scenarios may produce varied platform transaction
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capacities. For this reason, an Excel spreadsheet computing platform transaction capacities based
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on different user scenarios has been provided in Appendix A of this paper.
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8
ILS Command
Connect
Bind anonymous
Retrieve directory
Direct Lookup
Direct Lookup
Direct Lookup
Direct Lookup
Direct Lookup
Direct Lookup
Comment
Connect to the ILS server
Start ILS services
Get a listing of all online
users
Find a specific user
Find a specific user
Find a specific user
Find a specific user
Keep this user online
Keep this user online