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From "Ryan Blue (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-1504) Improve python implementation performance
Date Thu, 12 Feb 2015 00:32:12 GMT

    [ https://issues.apache.org/jira/browse/AVRO-1504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14317269#comment-14317269
] 

Ryan Blue commented on AVRO-1504:
---------------------------------

Unfortunately, I haven't been following this from the beginning, so I'm not sure what the
changes are for the improvements that Steven posted. However, since [~jcnnghm] can validate
that the validation lookup table and direct access to _writer are an improvement and they
make sense, let's start by getting just those changes in a patch. Then we can look at optimizing
the numeric deserialization.

> Improve python implementation performance
> -----------------------------------------
>
>                 Key: AVRO-1504
>                 URL: https://issues.apache.org/jira/browse/AVRO-1504
>             Project: Avro
>          Issue Type: Improvement
>          Components: python
>    Affects Versions: 1.7.6
>            Reporter: Steven Moy
>              Labels: patch, performance
>         Attachments: AVRO-1504.patch
>
>
> Inspired by https://www.python.org/doc/essays/list2str/, there are some low hanging fruit
to increase the performance for python implementation.
> Patch soon follow:
> https://github.com/smoy/avro/commits/smoy_reader_performance
> relevant commits
> * 71220bb4a84c7aa4d42b593a2c0f7cefa8cda82d
> * 542139ce1a40492c9234ee5f84a4410515877af4
> * 2f7a0ef8d02148cf69269f5b59f89481e7c86d34



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