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Posted to dev@avro.apache.org by "Scott Carey (Commented) (JIRA)" <ji...@apache.org> on 2012/01/17 02:33:38 UTC
[jira] [Commented] (AVRO-989) Java: Improve Builder performance in
Specific API
[ https://issues.apache.org/jira/browse/AVRO-989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13187366#comment-13187366 ]
Scott Carey commented on AVRO-989:
----------------------------------
Overall looks good, but there is a test failure.
Running org.apache.avro.tool.TestSpecificCompilerTool
Tests run: 3, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 0.708 sec <<< FAILURE!
This fails because it is expecting the old output from the specific compiler. All other tests passed.
> Java: Improve Builder performance in Specific API
> --------------------------------------------------
>
> Key: AVRO-989
> URL: https://issues.apache.org/jira/browse/AVRO-989
> Project: Avro
> Issue Type: Improvement
> Components: java
> Reporter: Scott Carey
> Attachments: AVRO-989.patch
>
>
> The Specific API generates Builder objects for each record. This builder uses a boolean[] to store flags for each field to indicate whether the field is set or not.
> This is not space efficient, a boolean[] takes 16 bytes plus one byte per field, rounded up to the nearest 8 byte interval.
> This can be improved on by using BitSet for large records, and bitmasks on an int for records with less than 32 fields.
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