commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Paul Loy (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IO-286) FastByteArray*Stream implementations to replace syncronized JDK ByteArray*Stream
Date Tue, 27 Sep 2011 16:02:12 GMT
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


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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message