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https://issues.apache.org/jira/browse/CASSANDRA-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609106#comment-13609106
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T Jake Luciani commented on CASSANDRA-5361:
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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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