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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12040) Performances issues with FilteredScanTest
Date Thu, 25 Sep 2014 22:17:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14148395#comment-14148395
] 

Devaraj Das commented on HBASE-12040:
-------------------------------------

I am looking at the overall run time of the test. With HBASE-11331, I see
{noformat}
2014-09-25 20:53:09,418 INFO  [TestClient-0] hbase.PerformanceEvaluation: Finished TestClient-0
in 517151ms over 100 rows
2014-09-25 20:53:09,418 INFO  [main] hbase.PerformanceEvaluation: [FilteredScanTest] Summary
of timings (ms): [517151]
2014-09-25 20:53:09,418 INFO  [main] hbase.PerformanceEvaluation: [FilteredScanTest]    Min:
517151ms   Max: 517151ms   Avg: 517151ms
{noformat}
Without HBASE-11331, the numbers (min, max, avg)  are almost half.

There is no change in the configuration etc between the two runs. On the configuration itself,
I do have bucket cache configured on. I don't know yet if that is causing any issue (but again
the configs are unchanged in the runs)
{noformat}
  <property>
    <name>hbase.bucketcache.ioengine</name>
    <value>offheap</value>
  </property>
  <property>
    <name>hbase.bucketcache.percentage.in.combinedcache</name>
    <value>0.7</value>
  </property>
  <property>
    <name>hbase.bucketcache.size</name>
    <value>1400</value>
  </property>
{noformat}

P.S. Nick is on vacation this week. Maybe we should wait for him to come back :-)

> 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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