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https://issues.apache.org/jira/browse/CASSANDRA-6969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055716#comment-14055716
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Lyuben Todorov commented on CASSANDRA-6969:
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[~jbellis] {{20 sec}} improvement when running without extra runners:
pre: BUILD SUCCESSFUL Total time: 8 minutes 2 seconds
post: BUILD SUCCESSFUL Total time: 7 minutes 43 seconds
{{8 sec}} when running with 8 runners:
pre: BUILD SUCCESSFUL Total time: 3 minutes 27 seconds
post: BUILD SUCCESSFUL Total time: 3 minutes 19 seconds
> Use Unsafe Mutations Where Possible in Unit Tests
> -------------------------------------------------
>
> Key: CASSANDRA-6969
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6969
> Project: Cassandra
> Issue Type: Test
> Components: Tests
> Reporter: Tyler Hobbs
> Assignee: Lyuben Todorov
> Priority: Minor
> Fix For: 2.1 rc3
>
> Attachments: 0001-Use-unsafe-mutations-for-unit-tests.patch
>
>
> Since the test config uses the "batch" mode for the commitlog, safe writes
> are quite slow. In tests that don't rely on safe writes, we should use
> unsafe writes. This mostly consists of converting {{RowMutation.apply()}}
> calls into {{RowMutation.applyUnsafe()}} calls.
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