Hi,

I am interested in the exact traces including distinguishing between different clients and different threads.

Cheers, Doru

On Mon, Dec 19, 2011 at 3:00 PM, Alexandre Bergel alexandre.bergel@me.com wrote:

AspectJ also does a pretty good job. But all in all, it depends what you want to extract from the execution. Which kind of metric or data are you interested in ?

We are currently writing an agent for the JVM to extract low level data.

Cheers, Alexandre

On 19 Dec 2011, at 09:50, Sergio Castro wrote:

...

On 19/12/11 13:09, moose-dev-request@iam.unibe.ch wrote:

...

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Message: 2 Date: Mon, 19 Dec 2011 05:07:39 +0100 From: Tudor Girbatudor@tudorgirba.com Subject: [Moose-dev] java (jboss) dynamic instrumentation? To: Moose-dev Moose Devmoose-dev@iam.unibe.ch Message-ID:56F679FD-8623-4A68-BD18-B7C3B3C3D340@tudorgirba.com Content-Type: text/plain; charset=us-ascii

Hi,

Can anyone recommend an dynamic instrumentation tool for Java?

I am interested in a solution that would work also on the server side (in particular, inside a JBoss server).

I found some links, but I do not know how good they are: http://java-source.net/open-source/profilers

Cheers, Doru

-- www.tudorgirba.com

"Reasonable is what we are accustomed with."

As far as I know, Javassist is what you need. I have used it for byte code instrumentation and is relatively easy to learn and use, if I remember correctly JBoss provides support for it. Take a look to: http://www.jboss.org/javassist

Sergio _______________________________________________ Moose-dev mailing list Moose-dev@iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

-- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel  http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Moose-dev mailing list Moose-dev@iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

As Alex mentioned, one option would be to roll your own using AspectJ. If you just need a log to a file with all called methods, recieviers, arguments and the executing thread, this should be quite trivial. I guesstimate that 50 LOC should be an upper bound.

Tudor Girba wrote:

Hi,

I am interested in the exact traces including distinguishing between different clients and different threads.

Cheers, Doru