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From Apache Wiki <wikidi...@apache.org>
Subject [Harmony Wiki] Update of "Jitrino OPT/statprof" by George Timoshenko
Date Tue, 06 May 2008 08:55:37 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Harmony Wiki" for change notification.

The following page has been changed by George Timoshenko:
http://wiki.apache.org/harmony/Jitrino_OPT/statprof

New page:
Many optimizations can use the edge profile information for greater efficiency. When the execution
manager is configured to use a dynamic profiling mode, the profile is gathered by the JIT.
But even in static mode, when a dynamic profile is not available, Jitrino.OPT can use the
statprof optimization pass to update HIR with a profile based on heuristics. In the dynamic
profiling mode, some optimizations may break profile information by changing the CFG structure.
In this case, statprof can be used to fix the profile information and keep it consistent.

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