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rob4141

Eclipse memory usage

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I've followed knowledge base article 10 (http://www.excelsior-usa.com/kb/000010.html) on howto compile eclipse with JET.

However, the resulting exe and dlls take up a lot more memory (2x-3x).  I've tried changing the memory settings but the program seems to ignore it.

Eclipse-java = 24MB

Eclipse-JET  = 62MB

Has anyone seen this problem?

Thanks,

Rob Hughes

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Hi,

What version of JET do you use and on which platform (Windows or Linux)? Also, could you please provide the scenario on which you have measured the memory footprint?

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Could you please add the following lines into the EclipseCache.prj, recompile it and report us the results:

%this setting prevents relocation of the compiled JIT cache by the system
-imagebase=0x20020000

Thanks.

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I'm currently running JET 3.6 RC2, though I've tried this with 3.5 as well with the same results.

Platform: Windows XP

Test Case: Start eclipse with an empty workspace(just what comes up on the intial start of eclipse), check memory usage, shutdown.

The imagebase setting reduced the footprint to 55M.

Rob

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Do you have these numbers for a real use case of Eclipse?

The memory usage of a conventional JVM right after start-up may be not quite representative as the majority of code is interpeted not yet dynamically compiled.

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