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https://issues.apache.org/jira/browse/AVRO-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569062#comment-13569062
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Joseph Adler commented on AVRO-1241:
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I should add that I have only tested this change with Hadoop 1.0.4, and only
with Java 6. I'm not sure if this is a problem unique to our environment or a
general issue.
> improve trevni performance on string deserialization
> ----------------------------------------------------
>
> Key: AVRO-1241
> URL: https://issues.apache.org/jira/browse/AVRO-1241
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.7.3
> Reporter: Joseph Adler
> Attachments: AVRO-1241
>
>
> I have been trying to implement a storage function for Apache Pig that writes
> data in Trevni format. I found that the storage function was very slow when
> reading whole records.
> I did some profiling (with Yourkit) and found that most of the CPU time was
> being spent in org.apache.trevni.InputBuffer$readString() (specifically in
> the String() method). I changed to java.nio.charset.CharsetDecoder.decode for
> deserialization and saw a big improvement. Changes are included in the patch.
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