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https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16233729#comment-16233729
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Eshcar Hillel commented on HBASE-16417:
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QA passed, committing this patch. Thanks all reviews and comments.
Should I commit this to branch-2 as well? 

> In-Memory MemStore Policy for Flattening and Compactions
> --------------------------------------------------------
>
>                 Key: HBASE-16417
>                 URL: https://issues.apache.org/jira/browse/HBASE-16417
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Eshcar Hillel
>            Priority: Major
>             Fix For: 3.0.0
>
>         Attachments: HBASE-16417 - Adaptive Compaction Policy - 20171001.pdf, 
> HBASE-16417 - parameter tuning - 20171001.pdf, HBASE-16417-V01.patch, 
> HBASE-16417-benchmarkresults-20161101.pdf, 
> HBASE-16417-benchmarkresults-20161110.pdf, 
> HBASE-16417-benchmarkresults-20161123.pdf, 
> HBASE-16417-benchmarkresults-20161205.pdf, 
> HBASE-16417-benchmarkresults-20170309.pdf, 
> HBASE-16417-benchmarkresults-20170317.pdf, HBASE-16417.01.patch, 
> HBASE-16417.02.patch, HBASE-16417.03.patch, HBASE-16417.04.patch, 
> HBASE-16417.05.patch, HBASE-16417.06.patch, HBASE-16417.07.patch, 
> HBASE-16417.07.patch, HBASE-16417.08.patch, HBASE-16417.09.patch, 
> HBASE-16417.10.patch, HBASE-16417.11.patch, HBASE-16417.12.patch, 
> HBASE-16417.13.patch, HBASE-16417.14.patch, HBASE-16417.15.patch, 
> HBASE-16417.16.patch, HBASE-16417.17.patch, HBASE-16417.17.patch, 
> HBASE-16417.17.patch, HBASE-16417.17.patch, HBASE-16417.17.patch, 
> HBASE-16417.18.patch
>
>
> This Jira explores the performance of different memstore compaction policies.
> It presents the result of write-only workload evaluation as well as read 
> performance in read-write workloads.
> We investigate several settings of hardware (SSD, HDD), key distribution 
> (Zipf, uniform), with multiple settings of the system, and compare measures 
> like write throughput, read latency, write volume, total gc time, etc.
> The submitted patch sets some system properties at the values yielding 
> optimal performance. In addition we suggest a new Adaptive memstore 
> compaction policy that shows good tradeoffs between write throughput and 
> write volume.



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