[UIMA-3662] reduce sync contention in get/release CASes from pools

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.5.0SDK
• Fix Version/s: 2.6.0SDK
• Component/s: Core Java Framework
• Assignee: Marshall Schor
• Reporter: Marshall Schor
• Created: 28/Feb/14 22:22
• Updated: 18/Mar/14 20:38
• Resolved: 18/Mar/14 20:38

Description

In high multi-core executions, sync contention is possible when getting and returning CASes, from CasPools. This can happen in two places: one within the UimaContext_ImplBase, and the other in the CasPool implementation. See what can be done to reduce contention. when shared instances are accessed on multiple threads.