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https://issues.apache.org/jira/browse/CASSANDRA-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629795#comment-13629795
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Ahmed Bashir commented on CASSANDRA-5361:
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Incidentally we've operated with this option enabled for some a few months now
and have observed reduced latency as well
> 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: 1.1.11, 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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