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https://issues.apache.org/jira/browse/CASSANDRA-4338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13789713#comment-13789713
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Ryan McGuire commented on CASSANDRA-4338:
-----------------------------------------

trunk is working again, so I have a baseline now:

!4388.benchmark.png!

[data 
here|http://ryanmcguire.info/ds/graph/graph.html?stats=stats.4338.CompressedSequentialWriter.json&metric=interval_op_rate&operation=stress-write&smoothing=3]

> Experiment with direct buffer in SequentialWriter
> -------------------------------------------------
>
>                 Key: CASSANDRA-4338
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4338
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Marcus Eriksson
>            Priority: Minor
>              Labels: performance
>             Fix For: 2.1
>
>         Attachments: 4338.benchmark.png, 4338-gc.tar.gz, gc-4338-patched.png, 
> gc-trunk-me.png, gc-trunk.png, gc-with-patch-me.png
>
>
> Using a direct buffer instead of a heap-based byte[] should let us avoid a 
> copy into native memory when we flush the buffer.



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