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Lars Hofhansl updated HBASE-14628: ---------------------------------- Attachment: 14628-0.98.txt Found the problem. Here's a 0.98 patch. The actual macro win is 5% (not the 10% I promised above). Readability is roughly equal, I feel. Have a look and let me whether it's worth the change. > Save object creation for scanning with FAST_DIFF encoding > --------------------------------------------------------- > > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)