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Date: Fri, 8 Apr 2011 16:38:05 +0000 (UTC)
From: "Doug Cutting (JIRA)" <jira@apache.org>
To: dev@avro.apache.org
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Subject: [jira] [Commented] (AVRO-800) plot performance over time
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    [ https://issues.apache.org/jira/browse/AVRO-800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13017524#comment-13017524 ] 

Doug Cutting commented on AVRO-800:
-----------------------------------

My hack above is really fragile.  If someone adds a new test in the middle of Perf.java or otherwise changes its output then the graph will break.  It would be better to move some of the logic into Perf.java.  It might produce a file named <date>.json containing a record for each test run, e.g.:
{code}
{"name": "ReadInt", "mbps":357}
{"name": "WriteInt", "mbps":298}
{code}
Then we could write something that takes a directory of these files and produces the TSV file to plot, e.g.:
{code}
Date     ReadInt       WriteInt
20110414 357           298
...
{code}
This would leave blanks in columns where some files contain a test that others do not.  It could also invoke gnuplot to produce the .png image from the TSV file.


> plot performance over time
> --------------------------
>
>                 Key: AVRO-800
>                 URL: https://issues.apache.org/jira/browse/AVRO-800
>             Project: Avro
>          Issue Type: New Feature
>            Reporter: Doug Cutting
>         Attachments: avro-perf.tar.gz, avro-perf.tar.gz, perf.png, perf.png
>
>
> It might be useful to have a nightly repository of Avro performance statistics, so that we can plot performance changes over time.

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