[jira] [Commented] (IO-286) FastByteArray*Stream implementations to replace syncronized JDK ByteArray*Stream

["Henri Yandell (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IO-286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147917#comment-13147917 ] 

Henri Yandell commented on IO-286:
----------------------------------

Reminder that you said "Patch to follow" :)
                
> FastByteArray*Stream implementations to replace syncronized JDK ByteArray*Stream
> --------------------------------------------------------------------------------
>
>                 Key: IO-286
>                 URL: https://issues.apache.org/jira/browse/IO-286
>             Project: Commons IO
>          Issue Type: New Feature
>          Components: Streams/Writers
>            Reporter: Paul Loy
>            Priority: Minor
>              Labels: streams, synchronized
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> In CASSANDRA-2820 I reintoduced the FastByteArrayInputStream and FastByteArrayOutputStream to cassandra. These steams are un-synchronized versions of the Apache Harmony ByteArrayInputStream and ByteArrayOutputStream respectively.
> During my own testing of the streams I found a big difference in the performance of the standard JDK BA*S steams and the FBA*S streams on most JREs. Then cassandra load testing also showed an up to 10% improvement in cassandra performance using these streams.
> Then Thrift has TByteArrayOutputStream which contains a way to get the underlying byte[] buffer without a deep copy that would probably be a good further enhancement.
> Patch to follow.

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