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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12040) Performances issues with FilteredScanTest
Date Tue, 30 Sep 2014 23:00:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14153958#comment-14153958
] 

Nick Dimiduk commented on HBASE-12040:
--------------------------------------

I've redone my test from yesterday with the following changes: (1) made sure the RS process
was cycled between loading data and running the PE; (2) run PE test 10 times each. These results
are the mean after throwing out the fastest and slowest result in each set (same as [~jmspaggi]'s
report). I'm only looking at the overall run time, not the response latencies, though I have
the logs if you want further analysis.

||build||overall (ms)|| delta vs 0.98.6.1||
|0.98.6.1|149516|n/a|
|b885130~1|148041|{color:green}-0.99%{color}|
|b885130|149680|{color:red}0.11%{color}|
|0.99.0RC1|130415|{color:green}-12.78%{color}|

Looks like branch-1 has some nice improvements going on :)

> Performances issues with FilteredScanTest 
> ------------------------------------------
>
>                 Key: HBASE-12040
>                 URL: https://issues.apache.org/jira/browse/HBASE-12040
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.99.1
>            Reporter: Jean-Marc Spaggiari
>            Priority: Critical
>         Attachments: at-HBASE-11331.html, pre-HBASE-11331.html, ycsb-0.98.6.1-vs-0.98.7.pdf
>
>
> While testing 0.99.0RC1 release performances, compared to 0.98.6, figured that:
> - FilteredScanTest is 100 times slower;
> - RandomReadTest is 1.5 times slower;
> - RandomSeekScanTest is 3.2 times slower;
> - RandomScanWithRange10Test is 1,2 times slower;
> - RandomScanWithRange100Test is 1,3 times slower;
> - RandomScanWithRange1000Test is 4 times slower;
> - SequentialReadTest is 1,7 times slower;
> - SequentialWriteTest is just a bit faster;
> - RandomWriteTest	 is just a bit faster;
> - GaussianRandomReadBenchmark is just a beat slower;
> - SequentialReadBenchmark is 1,1 times slower;
> - SequentialWriteBenchmark is 1,1 times slower;
> - UniformRandomReadBenchmark crashed;
> - UniformRandomSmallScan is 1,3 times slower.



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