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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-12086) ORC: Buffered float readers to remove vtable thunks
Date Sat, 10 Oct 2015 11:03:05 GMT
Gopal V created HIVE-12086:
------------------------------

             Summary: ORC: Buffered float readers to remove vtable thunks
                 Key: HIVE-12086
                 URL: https://issues.apache.org/jira/browse/HIVE-12086
             Project: Hive
          Issue Type: Bug
          Components: File Formats
    Affects Versions: 1.3.0, 2.0.0
            Reporter: Gopal V
            Assignee: Gopal V
            Priority: Minor
         Attachments: HIVE-12086.1.patch

ORC float tree reader spends an inordinate amount of time, doing vtable thunks through InputStream
interface.

The actual operation is not faster with this patch, but the interface lookup goes down ~4x.



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