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https://issues.apache.org/jira/browse/HBASE-14613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15207781#comment-15207781
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Anoop Sam John commented on HBASE-14613:
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Thanks for sharing the details on what you see with MSLAB with G1GC.
But we are trying for off heap memstore (Off heap write path after the read
path). So there will be MSLAB impl backed by off heap BBs. Then we need a
pool of BBs and reuse them. On demand creation and throw away of DBBs may not
be a good choice. And also it is DBBs, the actual size of the Java objects are
small. So we should not be removing this pool feature IMO.
> 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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