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

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4.0
• Fix Version/s: 0.4.0
• Component/s: Execution - Codegen
• Assignee: Aditya Kishore
• Reporter: Aditya Kishore
• Created: 17/Jul/14 17:12
• Updated: 21/Jul/14 03:16
• Resolved: 21/Jul/14 02:48

Description

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.