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https://issues.apache.org/jira/browse/AVRO-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thiruvalluvan M. G. updated AVRO-316:
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Resolution: Fixed
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Committed revision 899195.
> Optiminzing inner loop functions of Avro io
> -------------------------------------------
>
> Key: AVRO-316
> URL: https://issues.apache.org/jira/browse/AVRO-316
> Project: Avro
> Issue Type: Improvement
> Components: java
> Reporter: Thiruvalluvan M. G.
> Assignee: Thiruvalluvan M. G.
> Attachments: AVRO-316-test.patch, AVRO-316.patch
>
>
> The methods advance() and pushProduction() of
> org.apache.avro.io.parsing.Parser class are invoked at least once per
> read/write call on ValidatingDecoder, ResolvingDecoder and ValidatingEncoder.
> Any optimization in these functions will improve overall performance when
> using these classes.
> Try org.apacge.avro.io.Perf -V to see the effect of this patch on the
> performance. On my machine it gives about 5 to 8% improvement.
> The optimizations are:
> - Reorder the code within advance() so that the most frequent paths
> involve minimal comparisons.
> - Repleace Symbol.CONTINUE with null to indicate that next symbol on the
> stack needs to be looked at.
> - Get rid of a parameter to pushProduction. This parameter was used only
> in one call site of that function; others pass null. Refactored the code so
> that these invocations do not pay for that piece of logic that they don't use.
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