[OPENJPA-1723] Improve the scalability of PreparedQueryCacheImpl

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0, 2.1.0
• Fix Version/s: 2.1.0
• Assignee: Richard G. Curtis
• Reporter: Richard G. Curtis
• Created: 12/Jul/10 21:20
• Updated: 20/Sep/10 15:40
• Resolved: 13/Jul/10 18:43

Description

On a large multicore machine (24+cores) there is a large amount of contention in the PreparedQueryCacheImpl lock.

In this JIRA I'm going to utilize the j.u.c.ReentrantReadWriteLock to improve read/write throughput.