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From "David McIntosh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-1332) Improve C# DatumReader performance
Date Tue, 12 Nov 2013 21:24:18 GMT

    [ https://issues.apache.org/jira/browse/AVRO-1332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13820482#comment-13820482
] 

David McIntosh commented on AVRO-1332:
--------------------------------------

Looks good now, thanks!

> Improve C# DatumReader performance
> ----------------------------------
>
>                 Key: AVRO-1332
>                 URL: https://issues.apache.org/jira/browse/AVRO-1332
>             Project: Avro
>          Issue Type: Improvement
>          Components: csharp
>    Affects Versions: 1.7.5
>            Reporter: David McIntosh
>            Assignee: David McIntosh
>            Priority: Minor
>              Labels: performance
>             Fix For: 1.7.6
>
>         Attachments: AVRO-1332-2.patch, AVRO-1332-3.patch, AVRO-1332-4.patch, AVRO-1332-defaults-patch-only.patch,
AVRO-1332-missing-files-plus-defaults-patch.patch, AVRO-1332.patch
>
>
> The current implementations of the C# datum readers perform resolution of the reader
and writer schema on every call to Read. In my tests this was causing it to perform poorly
when reading a large number of records (slower than parsing the same data from delimited text
files). It would be more efficient if the reader only needed to resolve the schemas once.



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