This one time, at band camp, Sandeep Bhasin said:
SB>We have been doing evaluation of Castor vs JDBC for database access.
SB>
SB>While retrieving objects in "Shared" mode we found that performance is
SB>almost 4 times slower than when objects are retrueved in "ReadOnly".
SB>
SB>I thought it may have been due to cache so I set <cache-type
SB>type="none"> but that didn't help.
SB>
SB>If you have any inputs on this, please let me know.
Sandeep,
Comparing Castor JDO with JDBC for performance reasons is like comparing
apples to horses - it is a HIGHLY unmatched test. Castor performs caching,
object relation managment, object transaction management, etc., etc. that
JDBC does not do at all. So there is cerainly going to be a big difference
in performance.
As far as improving performance there is no silver bullet for this. It
almost always needs to be guaged on a case by case basis. If you can
provide some additional relevant detail we may be able to make some
suggestions.
Bruce
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