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From "Dave Brosius (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3772) Evaluate Murmur3-based partitioner
Date Mon, 13 Feb 2012 12:17:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206830#comment-13206830
] 

Dave Brosius commented on CASSANDRA-3772:
-----------------------------------------

With 10,000 inserts i'm seeing the same ratios, which i'm having a hard time describing why
as again the hash function itself is about the same time.
                
> Evaluate Murmur3-based partitioner
> ----------------------------------
>
>                 Key: CASSANDRA-3772
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3772
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jonathan Ellis
>             Fix For: 1.2
>
>         Attachments: try_murmur3.diff
>
>
> MD5 is a relatively heavyweight hash to use when we don't need cryptographic qualities,
just a good output distribution.  Let's see how much overhead we can save by using Murmur3
instead.

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