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https://issues.apache.org/jira/browse/HBASE-12040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14150900#comment-14150900
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stack commented on HBASE-12040:
-------------------------------
I ran 5 funs of filteredScan and 5 of randomreads against 0.98 and then against
the 0.99.0 release. Seems like 0.99.0 is faster on filteredScan and about same
randomReading.
0.98
{code}
filterscan 265478ms over 100 rows
filterscan 246280ms over 100 rows
filterscan 245655ms over 100 rows
filterscan 245236ms over 100 rows
filterscan 246014ms over 100 rows
randomread 429293ms over 1048576 rows
randomread 397037ms over 1048576 rows
randomread 449759ms over 1048576 rows
randomread 442134ms over 1048576 rows
randomread 454600ms over 1048576 rows
{code}
0.99.0
{code}
filterscan 219691ms over 100 rows
filterscan 213598ms over 100 rows
filterscan 213214ms over 100 rows
filterscan 213116ms over 100 rows
filterscan 212634ms over 100 rows
randomread 453774ms over 1048576 rows
randomread 442692ms over 1048576 rows
randomread 390530ms over 1048576 rows
randomread 466790ms over 1048576 rows
randomread 449018ms over 1048576 rows
{code}
Let me compare w/o hbase-11331.
> 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
> Assignee: stack
> Priority: Blocker
> Fix For: 0.98.7, 0.99.1
>
> Attachments: at-HBASE-11331.html, pre-HBASE-11331.html
>
>
> 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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