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https://issues.apache.org/jira/browse/CASSANALYTICS-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Archit Agarwal moved CASSANDRA-20724 to CASSANALYTICS-68:
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Impacts: (was: None)
Key: CASSANALYTICS-68 (was: CASSANDRA-20724)
Platform: (was: All)
Project: Apache Cassandra Analytics (was: Apache Cassandra)
> Optimise byte array to hex string conversion
> ---------------------------------------------
>
> Key: CASSANALYTICS-68
> URL: https://issues.apache.org/jira/browse/CASSANALYTICS-68
> Project: Apache Cassandra Analytics
> Issue Type: Improvement
> Reporter: Archit Agarwal
> Assignee: Archit Agarwal
> Priority: Normal
>
> Current implementation of converting byte array to hex string uses string
> formatting which needs to parse the format ("%02x") for every byte. This
> takes a lot of time and CPU.
> {code:java}
> "0x" + x.map("%02x" format _).mkString{code}
> Change to standard way using bit operations drastically increases the
> performance.
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