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Date: Fri, 21 Jan 2011 10:21:44 -0500 (EST)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Subject: [jira] Commented: (CASSANDRA-1968) Increase JVM young generation
 size
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    [ https://issues.apache.org/jira/browse/CASSANDRA-1968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12984766#action_12984766 ] 

Jonathan Ellis commented on CASSANDRA-1968:
-------------------------------------------

old-gen STW compactions are going to be unpredictable, yes.  that's pretty much unavoidable.

> Increase JVM young generation size
> ----------------------------------
>
>                 Key: CASSANDRA-1968
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1968
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 0.7.0
>            Reporter: Brandon Williams
>            Assignee: Brandon Williams
>             Fix For: 0.7.1
>
>         Attachments: 1968.txt, 1968_v2.txt
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> Increasing the young generation size has a profound effect on performance and cpu utilization.  We should set it explicitly.

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