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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14921) Memory optimizations
Date Wed, 17 Aug 2016 17:16:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15424938#comment-15424938
] 

Anoop Sam John commented on HBASE-14921:
----------------------------------------

What we observed in our tests with G1GC is that the MSLAB pool is not behaving worse.  And
in off heap write path, our idea is to have an MSLAB with off heap backing and here we would
need pool any way.

> Memory optimizations
> --------------------
>
>                 Key: HBASE-14921
>                 URL: https://issues.apache.org/jira/browse/HBASE-14921
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: Eshcar Hillel
>            Assignee: Anastasia Braginsky
>         Attachments: CellBlocksSegmentInMemStore.pdf, CellBlocksSegmentinthecontextofMemStore(1).pdf,
HBASE-14921-V01.patch, HBASE-14921-V02.patch, HBASE-14921-V03.patch, HBASE-14921-V04-CA-V02.patch,
HBASE-14921-V04-CA.patch, HBASE-14921-V05-CAO.patch, HBASE-14921-V06-CAO.patch, HBASE-14921-V08-CAO.patch,
HBASE-14921-V09-CAO.patch, HBASE-14921-V10-CAO.patch, HBASE-14921-V11-CAO.patch, HBASE-14921-V11-CAO.patch,
InitialCellArrayMapEvaluation.pdf, IntroductiontoNewFlatandCompactMemStore.pdf, MemStoreSizes.pdf,
MemstoreItrCountissue.patch, NewCompactingMemStoreFlow.pptx
>
>
> Memory optimizations including compressed format representation and offheap allocations



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