[
https://issues.apache.org/jira/browse/HBASE-5625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267226#comment-13267226
]
Hudson commented on HBASE-5625:
-------------------------------
Integrated in HBase-TRUNK-security #190 (See
[https://builds.apache.org/job/HBase-TRUNK-security/190/])
HBASE-5625 Avoid byte buffer allocations when reading a value from a Result
object (Tudor Scurtu) (Revision 1333159)
Result = SUCCESS
tedyu :
Files :
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/KeyValue.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/Result.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/TestKeyValue.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestResult.java
> Avoid byte buffer allocations when reading a value from a Result object
> -----------------------------------------------------------------------
>
> Key: HBASE-5625
> URL: https://issues.apache.org/jira/browse/HBASE-5625
> Project: HBase
> Issue Type: Improvement
> Components: client
> Affects Versions: 0.92.1
> Reporter: Tudor Scurtu
> Assignee: Tudor Scurtu
> Labels: patch
> Fix For: 0.96.0
>
> Attachments: 5625.txt, 5625v2.txt, 5625v3.txt, 5625v4.txt,
> 5625v5.txt, 5625v6.txt, 5625v7.txt, 5625v8.txt
>
>
> When calling Result.getValue(), an extra dummy KeyValue and its associated
> underlying byte array are allocated, as well as a persistent buffer that will
> contain the returned value.
> These can be avoided by reusing a static array for the dummy object and by
> passing a ByteBuffer object as a value destination buffer to the read method.
> The current functionality is maintained, and we have added a separate method
> call stack that employs the described changes. I will provide more details
> with the patch.
> Running tests with a profiler, the reduction of read time seems to be of up
> to 40%.
--
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
