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From "Jonathan Shook (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10403) Consider reverting to CMS GC on 3.0
Date Wed, 30 Sep 2015 16:07:04 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14937449#comment-14937449
] 

Jonathan Shook commented on CASSANDRA-10403:
--------------------------------------------

So, just to be clear, We are we disregarding G1 for systems with larger memory with the assumption
that 8GB is all you'll ever need for "all but the most write-heavy workoads", even for system
that have larger memory ??


> Consider reverting to CMS GC on 3.0
> -----------------------------------
>
>                 Key: CASSANDRA-10403
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10403
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Config
>            Reporter: Joshua McKenzie
>            Assignee: Paulo Motta
>             Fix For: 3.0.0 rc2
>
>
> Reference discussion on CASSANDRA-7486.
> For smaller heap sizes G1 appears to have some throughput/latency issues when compared
to CMS. With our default max heap size at 8G on 3.0, there's a strong argument to be made
for having CMS as the default for the 3.0 release.



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