Marius-Andrei Danila created SLING-3635:
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Summary: [Javascript] Optimization level for byte code generator
in Rhino should be configurable
Key: SLING-3635
URL: https://issues.apache.org/jira/browse/SLING-3635
Project: Sling
Issue Type: Improvement
Components: Scripting
Affects Versions: Scripting JavaScript 2.0.12
Reporter: Marius-Andrei Danila
The Rhino Javascript engine allows you to choose the level of optimization for
the generated byte code or it lets you select whether the scripts should be run
in interpreted mode [0].
Currently, there is no way to configure this. By default, Rhino compiles
scripts into JVM classes using the optimization level 0.
This option should be configurable, and the default value for this
configuration should be "-1" - meaning run scripts in interpreted mode. Since
we are not caching script compilation artifacts, the interpreted mode gives the
best performance for short-running scripts.
The attached patch implements this improvement by exposing a configuration
entry in the Rhino Javascript engine factory component.
[0] https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Rhino/Optimization
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