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https://issues.apache.org/jira/browse/HBASE-17235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anoop Sam John updated HBASE-17235:
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Summary: Improvement in creation of CIS for onheap buffer cases (was:
Minor improvement in creation of CIS for onheap buffer cases)
> Improvement in creation of CIS for onheap buffer cases
> ------------------------------------------------------
>
> Key: HBASE-17235
> URL: https://issues.apache.org/jira/browse/HBASE-17235
> Project: HBase
> Issue Type: Improvement
> Components: rpc
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0
>
> Attachments: HBASE-17235.patch
>
>
> {code}
> if (buf.hasArray()) {
> cis = CodedInputStream.newInstance(buf.array(), offset, buf.limit());
> } else {
> {code}
> Currently we do this for onheap buffers incase there is no reservoir or the
> size is less than the minSizeforReservoir. I could see that even if reservoir
> is there there are requests which goes with the above way of creating CIS.
> This could be made efficient to avoid underlying copies by just doing this
> {code}
> cis = UnsafeByteOperations.unsafeWrap(buf.array(), offset,
> buf.limit()).newCodedInput();
> {code}
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