[ https://issues.apache.org/jira/browse/HARMONY-5084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mikhail Fursov resolved HARMONY-5084.
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Resolution: Fixed
Committed revision r616763
> [drlvm][jit][opt] LightJNI
> --------------------------
>
> Key: HARMONY-5084
> URL: https://issues.apache.org/jira/browse/HARMONY-5084
> Project: Harmony
> Issue Type: New Feature
> Components: DRLVM
> Environment: Tested on Win32 IA32 platform. I think on IA32 Linux it will be
also o.k.
> Reporter: Yuri Kashnikoff
> Assignee: Mikhail Fursov
> Attachments: light_jni.zip, lightJNI.patch
>
>
> This patch adds new pass called "light_jni". This pass eliminates stub calling for some
methods which do not need stubbing (they do not use JNIEnv for example). This patch contain
some hardcoded names of such methods (all java/lang/Math methods and java/lang/VMThreadManager::currentThread).
You can add functions in list using command line param:
> -XX:jit.arg.codegen.light_jni.light_jni_methods=ClassName::MethodName,ClassName::MethodName,...
> Patch was tested on some microbenchmarks and Dacapo::jython (with n=4). The results
for Dacapo::jython look good:
> mode on off
> server 6700 7800
> client 7200 8000
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