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Posted to commits@cassandra.apache.org by "Ryan McGuire (JIRA)" <ji...@apache.org> on 2014/05/02 18:18:35 UTC

[jira] [Updated] (CASSANDRA-5361) Enable ThreadLocal allocation in the JVM

     [ https://issues.apache.org/jira/browse/CASSANDRA-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan McGuire updated CASSANDRA-5361:
------------------------------------

    Labels: qa-resolved  (was: )

> 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
>              Labels: qa-resolved
>             Fix For: 1.1.11, 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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