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Re: [aspectj-users] AJDT memory usage
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Hi,
I've been exploring some memory shrinking options under
https://bugs.eclipse.org/bugs/show_bug.cgi?id=278496 for the last few
releases (specifically reducing memory used under AJDT). If you are
able to share heap dumps with me, I'll revisit that work and make some
appropriate changes. Would that be possible? You can email the heap
dumps to me rather than attaching them to bugzilla. I would like to
confirm precisely where the memory is being used to ensure the
techniques I'm looking at under 278496 will help.
Andy
On 13 July 2010 02:53, Emond Papegaaij <emond.papegaaij@xxxxxxxxxx> wrote:
> Hi,
>
> We are thinking about introducing AspectJ into our project, so we started by
> switching from the Java compiler to the AspectJ Builder to make sure it is at
> least capable of building the project. It turns out the AspectJ Builder is
> able to build the project, but its memory usage is way to high to be usable.
> After a full rebuild, eclipse uses almost 1.2GB, even after a full GC.
>
> Inspection of a heap dump shows this memory is all taken by 42 AjState (and
> referenced) objects (one for each AspectJ project in my workspace). One even
> takes over 350M. Most of the memory usage seems to be in the AspectJ world.
>
> This is on a project with just over 600k lines of Java code, 1 aspect (with a
> few declare error statements, no advice) and the spring-aspects, mostly for
> the @Transactional aspect. This project contains 42 modules, all projects in
> Eclipse. I'm using Eclipse 3.5.2 with the latest AJDT development build
> (2.1.1.e35x-20100712-1300) with AspectJ 1.6.10.20100712130000.
>
> Is there any way we can reduce this memory usage? I tried disabling
> incremental building and disabling the weaving service, but that didn't help.
>
> Best regards,
> Emond Papegaaij
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>
