[jira] [Created] (CASSANDRA-8109) Avoid constant boxing in ColumnStats.{Min/Max}Tracker

["Sylvain Lebresne (JIRA)" <ji...@apache.org>]

Sylvain Lebresne created CASSANDRA-8109:
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             Summary: Avoid constant boxing in ColumnStats.{Min/Max}Tracker
                 Key: CASSANDRA-8109
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8109
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Sylvain Lebresne
            Priority: Minor
             Fix For: 3.0


We use the {{ColumnStats.MinTracker}} and {{ColumnStats.MaxTracker}} to track timestamps and deletion times in sstable. Those classes are generics but we really ever use them for longs and integers. The consequence is that every call to their {{update}} method (called for every cell during sstable write) box it's argument (since we don't store the cell timestamps and deletion time boxed). That feels like a waste that is easy to fix: we could just make those work on longs only for instance and convert back to int at the end when that's what we need.



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