[
https://issues.apache.org/jira/browse/JCS-119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13984746#comment-13984746
]
Thomas Vandahl commented on JCS-119:
------------------------------------
Several of these places should be tested carefully for actual performance
gains. Patches are always welcome.
> replace synchronized blocks by java locks or concurrenhashmap
> -------------------------------------------------------------
>
> Key: JCS-119
> URL: https://issues.apache.org/jira/browse/JCS-119
> Project: Commons JCS
> Issue Type: Improvement
> Reporter: Romain Manni-Bucau
>
> A cache is typically used in a concurrent environment. Since Java 6 using a
> ReentrantLock is faster than synchronized so can be interesting to replace
> synchronized blocks by a lock.
> Places i'm thinking about:
> * CompositeCache
> * AbstractDoubleLinkedListMemoryCache
> * LHMLRUMemoryCache
> * DoubleLinkedList
> * LRUMap
> * SingleLinkedList
> * SortedPreferentialArray
> Some places where replacing a HashMap by a ConcurrentHashMap can allow to get
> rid of synchronized without needing a lock:
> * CacheEventQueue
> * AbstractDiskCache
> * CacheWatchRepairable
> There are other places but this is the main I saw.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
