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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5821) Test new ConcurrentLinkedHashMap implementation (1.4RC)
Date Fri, 13 Sep 2013 22:32:55 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13767075#comment-13767075
] 

Jonathan Ellis commented on CASSANDRA-5821:
-------------------------------------------

Are these improvements in an official CLHM release now?
                
> Test new ConcurrentLinkedHashMap implementation (1.4RC)
> -------------------------------------------------------
>
>                 Key: CASSANDRA-5821
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5821
>             Project: Cassandra
>          Issue Type: Test
>            Reporter: Ryan McGuire
>            Assignee: Ryan McGuire
>
> There are some [improvements being made to CLHM| https://code.google.com/p/concurrentlinkedhashmap/source/detail?r=888ad7cebe5b509e5e713b00836f5df9f50baf32]
that we should test.
> Create a small enough dataset that it can fit in memory and devise a test that has a
high key cache hit rate, and compare results to CLHM 1.3 we already use.

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