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Derek Lane 2

Date: January 3, 2006 5:52:36 AM PST

Title:Accelerated acceleration for the XMLFile implementation of

EIMS ( is a web-accessible EPA catalog of projects
and products. We provide access to our records via OAI-PMH2. mostly to
the National Science Digitatl Library (NSDL).
We needed a pre-tested implementation of the protocol, and chose Hussein
Suleman's XMLFile ( Perl
While exploring the implementation, we found that large numbers (tens of
thousands) of records could only be published very slowly. We quickly
show how to accelerate this implementation ~20 times in our environment,
with some real-world trade-offs.

--Derek Lane
CSC contractor to EPA to4047 eims/nsdi support
(919) 380 4540