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Re: [hyades-dev] hyades profiling
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Erik,
You can work with me directly on these issues. I am interested in hearing
what you have found. Also, we have several things we are adding to Hyades
in 1.2 and upcomming releases that may be of interest in your work.
A couple of comments on the specifics you have listed:
1. There was an issue with some filter permutations that was fixed
recently. This is fixed in the current 1.0.4 stream as well as the 1.2
stream.
2. ClassDefs are sent in correspondence with the fiter criteria. The
thing to keep in mind is that when a class is loaded it is not 'declared'
in the trace immediately unless object information is explicitly asked for.
If you are execution profiling then the class is declared only when the
class is referenced in the execution flow.
Richard K. Duggan
Problem Determination Enablement
IBM Toronto Laboratory
External: 905-413-2396
Internal: 969-2396
|---------+----------------------------->
| | "Putrycz, Erik" |
| | <Erik.Putrycz@nrc-|
| | cnrc.gc.ca> |
| | Sent by: |
| | hyades-dev-admin@e|
| | clipse.org |
| | |
| | |
| | 01/07/2004 05:34 |
| | PM |
| | Please respond to |
| | hyades-dev |
|---------+----------------------------->
>---------------------------------------------------------------------------------------------------------------------------------------------|
| |
| To: "'hyades-dev@xxxxxxxxxxx'" <hyades-dev@xxxxxxxxxxx> |
| cc: |
| Subject: [hyades-dev] hyades profiling |
| |
| |
>---------------------------------------------------------------------------------------------------------------------------------------------|
My name is Erik Putrycz, I am a research associate at NRC working with the
Software engineering group and one of my current research interests is
profiling.
My objective (in short) is to find ways to gather comprehensive information
about performance and also suggestions to improve the code.
And currently Eclipse and Hyades are the platforms I am working on.
Hyades is by far the most powerful profiler I found and there are lot of
great ideas there.
I developped my own plugin on top of hyades for analyzing profiling
informations to extract some concern specific informations from an
execution (eg. database accesses).
I am currently experimenting it on one of our own applications with is a
heavy J2EE based web application for conference management (currently
running on Jboss).
I have been digging quite much into the java and c/c++ code and did some
small improvements + allowed the native part (from the CVS repository) to
build with the latest icu and xerces libs.
But that far, I am still experiencing some issues with the profiler:
- in standalone mode, filters doesn't seem to be taken into account (but
they show up correctly on the top of the xml file) (and the 600mb files are
refusing to be imported);
- in controlled mode, many calls are missing from the gathered data (I
wonder if all necessary classDefs statements are sent).
So I was wondering if anyone would have some ideas or solutions about these
issues ?
Have you had success in running the profiler for large applications ?
Best Regards,
Erik Putrycz, Ph.D - Research Associate / erik.putrycz@xxxxxx / (613) 990
0681
Institute for Information Technology - Software Engineering Group
National Research Council, Canada - Building M-50, 1200 Montreal Road
Ottawa, Ontario, CANADA K1A 0R6
