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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-420) Improve performance of BinaryMemtable sort phase
Date Tue, 15 Sep 2009 18:24:57 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12755620#action_12755620
] 

Jonathan Ellis commented on CASSANDRA-420:
------------------------------------------

Created CASSANDRA-446 to use DK even more.

> Improve performance of BinaryMemtable sort phase
> ------------------------------------------------
>
>                 Key: CASSANDRA-420
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-420
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 0.5
>            Reporter: Johan Oskarsson
>            Assignee: Johan Oskarsson
>            Priority: Minor
>             Fix For: 0.5
>
>         Attachments: CASSANDRA-420.patch, CASSANDRA-420.patch
>
>
> The BinaryMemtable sorts an array of decorated keys. There are a lot of string operations
and object allocation in the comparator that could be avoided to improve performance..

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