directory-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAVIBOT-11) Add a cache to replace the weakReferences
Date Fri, 23 Aug 2013 07:57:51 GMT

    [ https://issues.apache.org/jira/browse/MAVIBOT-11?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13748377#comment-13748377
] 

Emmanuel Lecharny commented on MAVIBOT-11:
------------------------------------------

Some interesting links :

http://www.codeinstructions.com/2008/09/weakhashmap-is-not-cache-understanding.html
http://en.wikipedia.org/wiki/Cache_algorithms
http://blog.mgm-tp.com/2013/03/garbage-collection-tuning/
                
> Add a cache to replace the weakReferences
> -----------------------------------------
>
>                 Key: MAVIBOT-11
>                 URL: https://issues.apache.org/jira/browse/MAVIBOT-11
>             Project: Mavibot
>          Issue Type: Improvement
>    Affects Versions: 1.0.0-M1
>            Reporter: Emmanuel Lecharny
>            Assignee: Emmanuel Lecharny
>            Priority: Critical
>             Fix For: 1.0.0-M2
>
>
> We currently use a WeakReference to hold elements in memory. This is convenient, but
when we have exhausted the memory, the GC takes forever to reclaim the weakReferences, slowing
down the code up to a point it's unusable.
> We should rather use a LRU Cache to store a limited amount of elements, and make it configurable.
> We should keep the WeakReferences for those having enough memory. (to be discussed)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message