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From "Egor Pasko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-4926) [drlvm][jit] Bytecode level edge profile implementation in Jitrino.OPT compiler
Date Thu, 18 Oct 2007 14:02:50 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-4926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535920
] 

Egor Pasko commented on HARMONY-4926:
-------------------------------------

wow! interesting!

> [drlvm][jit] Bytecode level edge profile implementation in Jitrino.OPT compiler
> -------------------------------------------------------------------------------
>
>                 Key: HARMONY-4926
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4926
>             Project: Harmony
>          Issue Type: New Feature
>          Components: DRLVM
>            Reporter: Mikhail Fursov
>            Assignee: Mikhail Fursov
>         Attachments: bclevel_off.patch
>
>
> The patch contains bc-level edge profile implementation for Jitrino.OPT compiler.
> The BC-level edge profile mode is turned off by default in -server mode, because it shows
performance degradation in comparison with IR-based edge profile mapping.
> However it can be used to prototype edge profile reusing from any JIT by Jitrino.OPT
compiler (for example passing edge profile from Jitrino.JET to Jitrino.OPT)

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