Performance of Migrated HP e3000 Applications
page 267/22/2008
Database
• Another area requiring attention is the locking strategy.
• Many IMAGE applications use predicate-level locking,
and only lock around database modifications (not
reads).
• Relational databases may use page-level locking,
and may also lock around read transactions.
• Both of these can have a negative performance
impact on a migrated HP e3000 application.