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From "Claus Ibsen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-8994) Large memory use on Large core count(512) servers
Date Wed, 22 Jul 2015 08:08:04 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-8994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636473#comment-14636473
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Claus Ibsen commented on CAMEL-8994:
------------------------------------

The initial size has been dropped to 16 - for the other you will have to wait for when we
drop Java8

> Large memory use on Large core count(512) servers
> -------------------------------------------------
>
>                 Key: CAMEL-8994
>                 URL: https://issues.apache.org/jira/browse/CAMEL-8994
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-core
>    Affects Versions: 2.14.3
>            Reporter: Zoltan Farkas
>             Fix For: 2.16.0, 2.15.3, 2.14.4
>
>
> ConcurrentLinkedHashmap get huge on these servers (200 +Mb) 
> There are some CPU related defaults + Some padding that are the source of this, more
discussion at:
> https://github.com/ben-manes/concurrentlinkedhashmap/issues/43
> upgrading to a newer version should remove the padding and reduce memory usage...
> Another thing I noticed that is related, is that LRUCache 
> default initial size is equal with maximum size... which is 1000, would it make more
sense to have a lower default for initialSize? (64) 



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