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Center for Information Technology Integration
University of Michigan
519 West William Street
Ann Arbor, MI 48103-4943

CITI Technical Report 94?1

Adding 50,200 Users to a DCE Registry:

A Comparison of OSF DCE V1.0.2 and

IBM DCE/6000 V1.2

Mark R. Carter

[email protected]

This study compares two releases of the Distributed Computing Environment (DCE) dur-

ing the addition of 50,200 ?human users? to the cell registry. To conduct the study, we

configured a one-machine cell with DCE core services (RPC facility, initial security serv-

er, primary CDS server, and DTS local server). The study focuses on the secd paging

space, registry file space usage, and rgy_edit response time. Although resource con-

sumption increases linearly with the number of users added to the cell registry,

rgy_edit response time increases markedly during a registry checkpoint operation. The

registry performance statistics included in this study enable the DCE administrator to es-

tablish a resource usage baseline. However, further investigation is required to ascertain

whether security server replication will smooth the rgy_edit response time or exacer-

bate rgy_edit delays.

February 14, 1994