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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-7486) Compare CMS and G1 pause times
Date Tue, 01 Jul 2014 18:04:25 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-7486:
--------------------------------------

    Description: 
See http://www.slideshare.net/MonicaBeckwith/garbage-first-garbage-collector-g1-gc-migration-to-expectations-and-advanced-tuning
and https://twitter.com/rbranson/status/482113561431265281

May want to default 2.1 to G1.

2.1 is a different animal from 2.0 after moving most of memtables off heap.  (NB this is off
by default but needs to be part of the test.)

  was:
See http://www.slideshare.net/MonicaBeckwith/garbage-first-garbage-collector-g1-gc-migration-to-expectations-and-advanced-tuning
and https://twitter.com/rbranson/status/482113561431265281

May want to default 2.1 to G1.

2.1 is a different animal with 2.0 with moving most of memtables off heap.  (NB this is off
by default but needs to be part of the test.)


> Compare CMS and G1 pause times
> ------------------------------
>
>                 Key: CASSANDRA-7486
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7486
>             Project: Cassandra
>          Issue Type: Test
>          Components: Config
>            Reporter: Jonathan Ellis
>            Assignee: Ryan McGuire
>             Fix For: 2.1.0
>
>
> See http://www.slideshare.net/MonicaBeckwith/garbage-first-garbage-collector-g1-gc-migration-to-expectations-and-advanced-tuning
and https://twitter.com/rbranson/status/482113561431265281
> May want to default 2.1 to G1.
> 2.1 is a different animal from 2.0 after moving most of memtables off heap.  (NB this
is off by default but needs to be part of the test.)



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