[ 
https://issues.apache.org/jira/browse/HBASE-14921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15171461#comment-15171461
 ] 

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

Seeing ur reply now Stack.  Ya u also mention abt a use case (I think more 
normal) where Cells in memstore can not go away that easily and will get 
flushed to file.  IMO we should avoid the extra copy then..  
bq.On #2, you have heard the rumor that MSLAB may not be needed when running on 
G1GC (TBD)
Where we have this discussion? Abt MSLAB pool we had some jira that our Lars 
raised.   But in case of off heaping we will need an off heap MSLAB which can 
pool BBs.  For offheap we must need pool.
Regarding multiple options with off heaping we will be doing those Stack.

> 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
>         Attachments: CellBlocksSegmentInMemStore.pdf
>
>
> Memory optimizations including compressed format representation and offheap 
> allocations



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to