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https://issues.apache.org/jira/browse/CASSANDRA-629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790312#action_12790312
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Jonathan Ellis commented on CASSANDRA-629:
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does not appreciably reduce CompactionsTest runtime for me

> antientropyservice patchset nearly doubles compaction time
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-629
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-629
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Stu Hood
>             Fix For: 0.5
>
>         Attachments: 629-1-utility-changes.diff, 
> 629-2-use-xor-in-merkletree.diff, 629-3-notify-neighbors.diff
>
>
> CompactionsTest goes from 2.9s to 5.7s for me, before/after the 193 patchset. 
>  This is not an acceptable speed hit for when no repair work is actually 
> being done, assuming it is representative of "real" compactions.

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