| Memory Profiling : Object exclusive Deep size [message #40202] |
Mon, 14 November 2005 02:54  |
Eclipse User |
|
|
|
Hi,
Is there any way i can determine deep size of an object with TPTP, what TPTP
gives is the size which will be freed upon GC. Is there any easier way of
getting deep size?
thanks,
Nirav Thaker
|
|
|
|
|
| Re: Memory Profiling : Object exclusive Deep size [message #40769 is a reply to message #40678] |
Wed, 16 November 2005 04:32  |
| Eclipse User |
|
|
|
Hi Marius & Ali,
Thank you,
I'm profiling an application server with lot of frameworks and libraries
with nearly 12k+ classes loaded
and generated on the fly, the fact that i've to run profiling with no-filter
seems prohibitive, not only
it will generate lot of unnecessary data it will be difficult to extract the
information, is there any programming
solution I can jump in, I'm relatively new to TPTP.
I've opened this feature in bugzilla.
(https://bugs.eclipse.org/bugs/show_bug.cgi?id=116393)
Nirav Thaker
"Marius Slavescu" <slavescu@ca.ibm.com> wrote in message
news:dldc0c$650$1@news.eclipse.org...
> Hi Nirav,
>
> With the information that you can currently get in the TPTP trace model in
> order to get the deep (cumulative) size for an object I see two methods
that
> you could use (currently TPTP doesn't compute/provide the deep size) on
the
> client side (you may also look into the JVMPI agent and do the
computations
> there):
>
> - track all method invocations then look at the call chain to see
which
> constructors where called from all method invocations (defined in a class)
> against a specific object (which is an instance of the previously
mentioned
> class), then you need to cumulate the object's size allocated by those
> constructors.
>
> - collect a heap dump and then try to figure out (avoiding cycles
might
> be tricky) from the resulting object reference graph which are all the
> objects that hangs under a specific object and cumulate their size.
>
> Both methods will required to run with no filters if you want to get
> accurate results, so you should expect a lot of profiling data being
> generated and processed (you should also give a lot of Java heap space to
> TPTP in that case).
>
> As Ali suggested please open a feature in Bugzilla.
>
> Regards,
> Marius
>
> "Nirav Thaker" <nirav.thaker@c-sam.co.in> wrote in message
> news:dl9ftd$9nn$1@news.eclipse.org...
> > Hi,
> > Is there any way i can determine deep size of an object with TPTP, what
> TPTP
> > gives is the size which will be freed upon GC. Is there any easier way
of
> > getting deep size?
> >
> > thanks,
> >
> > Nirav Thaker
> >
> >
>
>
|
|
|
Powered by
FUDForum. Page generated in 0.04138 seconds
Home