[
https://issues.apache.org/jira/browse/HBASE-15491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15203742#comment-15203742
]
Anoop Sam John commented on HBASE-15491:
----------------------------------------
I mean, I could see within IPCUtil itself , there is a call to putBuffer in
BBBPool. Why? Can we make it such that the put back call is in one place?
WHere u got it from pool?
Why I asked abt the GC issue is, we were doing some PoC for reusing the pooled
BBs fro reading the reqs in RpcServer. Ya can see that it reduced the GC
frequency. But the GC pause time is larger. (I mean the young gen GC).. So I
was asking whether u also see any such pattern after this BB reuse change
> Reuse byte buffers in AsyncRpcClient
> ------------------------------------
>
> Key: HBASE-15491
> URL: https://issues.apache.org/jira/browse/HBASE-15491
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Affects Versions: 2.0.0
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Fix For: 2.0.0
>
> Attachments: HBASE-15491-v1.patch
>
>
> IPCUtil.buildCellBlock is used by both server and client. Server provides
> BoundedByteBufferPool for buffers reuse, client code does not do that. This
> results in additional memory pressure on a client side, because buffers are
> allocated on every call to IPCUtil.buildCellBlock.
> My own local tests (with patch) show approximately 8-10% reduction in object
> allocation rate on a client side (with HBASE-15479 as well).
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
