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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5361) Enable ThreadLocal allocation in the JVM
Date Thu, 21 Mar 2013 16:47:17 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609106#comment-13609106
] 

T Jake Luciani commented on CASSANDRA-5361:
-------------------------------------------

committed in https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=commit;h=c5864a524e11842a75ac1d6c79ed137fadcb6c0e
                
> Enable ThreadLocal allocation in the JVM
> ----------------------------------------
>
>                 Key: CASSANDRA-5361
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5361
>             Project: Cassandra
>          Issue Type: Improvement
>         Environment: JDK 6
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>             Fix For: 1.2.4
>
>
> Adding -XX:+UseTLAB to cassandra-env.sh yields a ~15% read performance boost.
> Works with usual stress tool but also in our production.
> It enables thread local allocation of new objects which makes sense for SEDA based systems.

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