Performance measurements of a user-space DAFS server with a database workload

摘要

We evaluate the performance of a user-space Direct Access File System (DAFS) server and Oracle Disk Manager (ODM) client using two synthetic test codes as well as the Oracle database. Tests were run on 4-processor Intel Xeon-based systems running Windows 2000. The systems were connected with ServerNet II, a Virtual Interface Architecture (VIA) compliant system area network. We compare the performance of DAFS/ODM and local-disk based I/O, measuring I/O bandwidth and latency. We also compare the runtime and CPU utilization of the Oracle database running the TPC-H benchmark over DAFS/ODM and local disk.