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https://issues.apache.org/jira/browse/HBASE-14613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212845#comment-15212845
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Lars Hofhansl commented on HBASE-14613:
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Didn't think my musing about G1 and MSLAB would lead to a long a useful 
discussion :)

Should we set InitiatingHeapOccupancyPercent based on configuration? By default 
we allow 40% of the heap for block cache and 40% for the memstore. When 
configured such, should we set InitiatingHeapOccupancyPercent to 80? Or maybe 
if we assume the memstores are on average 1/2 filled maybe this reasoning would 
lead to 60% as a good default...?

> Remove MemStoreChunkPool?
> -------------------------
>
>                 Key: HBASE-14613
>                 URL: https://issues.apache.org/jira/browse/HBASE-14613
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Lars Hofhansl
>            Priority: Minor
>         Attachments: 14613-0.98.txt, gc.png, writes.png
>
>
> I just stumbled across MemStoreChunkPool. The idea behind is to reuse chunks 
> of allocations rather than letting the GC handle this.
> Now, it's off by default, and it seems to me to be of dubious value. I'd 
> recommend just removing it.



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