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Date: Fri, 15 Jan 2010 17:32:54 +0000 (UTC)
From: "Thiruvalluvan M. G. (JIRA)" <jira@apache.org>
To: avro-dev@hadoop.apache.org
Subject: [jira] Updated: (AVRO-328) Performance improvements Validating
 encoder/decoder for nested records
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     [ https://issues.apache.org/jira/browse/AVRO-328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thiruvalluvan M. G. updated AVRO-328:
-------------------------------------

    Status: Patch Available  (was: Open)

> Performance improvements Validating encoder/decoder for nested records
> ----------------------------------------------------------------------
>
>                 Key: AVRO-328
>                 URL: https://issues.apache.org/jira/browse/AVRO-328
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>            Reporter: Thiruvalluvan M. G.
>            Assignee: Thiruvalluvan M. G.
>         Attachments: AVRO-328-test.patch, AVRO-328.patch
>
>
> With nested records, Parser.pushProduction() gets called multiple times (once per record nesting). Since we do not have any events for beginning and end of records, it enhances the performance if we flatten the grammar, wherever possible.
> The forthcoming patch does just that.
> Try org.apache.avro.io.Perf -N
> On my machine (HP laptop with Cygwin) the improvement is about 20%.

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