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https://issues.apache.org/jira/browse/KYLIN-2379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15814890#comment-15814890
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Billy Liu commented on KYLIN-2379:
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https://github.com/apache/kylin/commit/c84b46bd5b72006f140f7aad147ba0185c7eecbb
Thanks [~kangkaisen], patch merged.
> Add UseCMSInitiatingOccupancyOnly to KYLIN_JVM_SETTINGS
> -------------------------------------------------------
>
> Key: KYLIN-2379
> URL: https://issues.apache.org/jira/browse/KYLIN-2379
> Project: Kylin
> Issue Type: Improvement
> Components: Tools, Build and Test
> Affects Versions: v1.6.0
> Reporter: kangkaisen
> Assignee: kangkaisen
> Priority: Minor
> Fix For: v2.0.0
>
> Attachments: KYLIN-2379.patch
>
>
> {{CMSInitiatingOccupancyFraction}} is only used for the 1st collection unless
> {{-XX:+UseCMSInitiatingOccupancyOnly}} is set.
> The reference linking:
> https://books.google.com.hk/books?id=aIhUAwAAQBAJ&pg=PA146&lpg=PA146&dq=UseCMSInitiatingOccupancyOnly&source=bl&ots=E51s7uZ1eH&sig=D9nGk_hJu0IQ7QFymCnoekDrWf4&hl=zh-CN&sa=X&ved=0ahUKEwiI2tnQl63RAhWLL48KHZ5tDzA4ChDoAQg5MAQ#v=onepage&q=UseCMSInitiatingOccupancyOnly&f=false
> https://blog.codecentric.de/en/2013/10/useful-jvm-flags-part-7-cms-collector/
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