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https://issues.apache.org/jira/browse/HBASE-14628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961763#comment-14961763
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ramkrishna.s.vasudevan commented on HBASE-14628:
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I think that BB creation can be avoided here in case of 0.98 because anyway all
are going to be byte[] and so from the KVBuffer we can direclty copy to the new
byte[] that we create for forming the individual KVs.
> Save object creation for scanning with block encodings
> ------------------------------------------------------
>
> Key: HBASE-14628
> URL: https://issues.apache.org/jira/browse/HBASE-14628
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Attachments: 14628-0.98.txt
>
>
> I noticed that (at least in 0.98 - master is entirely different) we create
> ByteBuffer just to create a byte[], which is then used to create a KeyValue.
> We can save the creation of the ByteBuffer and hence save allocating an extra
> object for each KV we find by creating the byte[] directly.
> In a Phoenix count\(*) query that saved from 10% of runtime.
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