[jira] [Assigned] (DRILL-1155) Add option to use JDK compiler and use it for runtime generated code over a certain threshold

["Aditya Kishore (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aditya Kishore reassigned DRILL-1155:
-------------------------------------

    Assignee: Aditya Kishore  (was: DrillCommitter)

> Add option to use JDK compiler and use it for runtime generated code over a certain threshold
> ---------------------------------------------------------------------------------------------
>
>                 Key: DRILL-1155
>                 URL: https://issues.apache.org/jira/browse/DRILL-1155
>             Project: Apache Drill
>          Issue Type: Sub-task
>          Components: Execution - Codegen
>    Affects Versions: 1.0.0-BETA1
>            Reporter: Aditya Kishore
>            Assignee: Aditya Kishore
>             Fix For: 1.0.0-BETA1
>
>         Attachments: DRILL-1155-Add-option-to-use-JDK-compiler-and-use-it.patch
>
>
> This is related to DRILL-1095 however it would not completely resolve the issue since the Java class file format enforces a maximum limit of 64K on a code unit.
> However, it does provide some additional headroom as JDK compiler seems to generate slightly smaller bytecode compared to Janino and seems to be faster for source code sizes over a threshold (approximately 256K in my tests). For smaller source code Janino is order of magnitude faster than JDK compiler.



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