Re: [rvm-research] How can I use GCTrace tool ?

Are these bugs difficult to solve? I am not familiar with J9. 

Could you provide the much improved version to me?

Thanks,

On Apr 4, 2013, at 10:48 AM, Nathan Ricci <[email protected]> wrote:

>     There are some outstanding bugs in HotSpots JVMTI implementation that prevent Elephant Tracks from working on larger heaps. It works reliably with J9 though.
> 
>      I don't mind sharing the draft. Or, for that matter, the code for the much improved version that is not yet on the website; so long as its understood to be some what of a beta release.
> 
>          --Nathan
> 
> 
> On Thu, Apr 4, 2013 at 10:27 AM, Eliot Moss <[email protected]> wrote:
> On 4/4/2013 10:15 AM, lipengcheng wrote:
> > Hi Sam,
> >
> > Many thanks. Should the elephantTracks tool bind to HotSpot VM? What about its performance
> > compared with GCTrace tool in Jike?
> >
> > I visited the elephantTrack webpage. But I didn't find enough implementation documents. Could
> > you give me some implementations intro if you have? I might be modify the tool to get what I need.
> >
> > Thanks,
> > Pengcheng
> 
> Performance compares favorably with the old Merlin algorithm,
> producing more information at similar cost. It's the most
> shaken down with the IBM J9 VM, but should work with any VM
> that supports JVMTI well enough.
> 
> Not sure whether you really want *implementation* docs as much
> as "how do I use this thing".  We had a paper accepted to ISMM
> that overviews the implementation.  If my co-authors agree, we
> might send you the current draft (camera-ready version is under
> preparation).
> 
> Regards -- Eliot Moss
> 
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