[jbosstools-dev] Question on ASTools profiling

[Max Rydahl Andersen]

On Thu, Nov 07, 2013 at 01:06:42AM +0100, Snjezana Peco wrote:
>We have used Eclipse TPTP project (see http://www.eclipse.org/tptp/) to
>profile a JBoss AS server. Now the project is archived
>(http://www.eclipse.org/tptp/home/project_info/devplans/EclipseTPTPProjectPlan2010.htm).
>
>Google has announced the RAT project that should replace TPTP
>(http://www.eclipse.org/proposals/tools.rat/ &
>https://bugs.eclipse.org/bugs/show_bug.cgi?id=375133).

Don't think that was related to Google - all listed on it is from OnPositive Technologies.

>The project has never been started.
>
>What we can do is the following:
>
>- try to integrate Java VisualVM or Jubula
>- remove profiling code from JBT

>I will check if it is possible to integrate Java VisualVM or Jubula.

We need to seperate a few things here first.

1. What is needed to enable use of Eclipse Profile mode against our servers.
2. What specific ones that could be made to utilize #1.

IMO #2 is *not* a requirement for us to do - it can/should be possible to do for
others than us. It should be possible to enable by any profiler you have isntalled in 
eclipse.

For #1 I believe the server adapter simply just need to state it supports profiling
and allow that Profiler plugins will hook into the normal launch configuration phase.

Isn't that how Yourkit and other profilers hook into eclipse launches without having the launchers
knowing about the specific profiler?

And that is why the WTP call ServerProfilerDelegate.configureProfilling is needed.

To allow *any* Profiler to enable it by modifiying the standard javavm launch flags (like -agent) to
enable their profiler.

/max

>Snjeza
>
>On 11/6/2013 3:43 PM, Rob Stryker wrote:
>> This is mostly a question for Snjezana, but anyone else who knows feel
>> free to chime in:
>>
>> I noticed in AbstractJBossStartLaunchConfiguration is the following
>> block of code:
>>
>>         if (ILaunchManager.PROFILE_MODE.equals(mode)) {
>>             try {
>>                 ServerProfilerDelegate.configureProfiling(launch, vm,
>> runConfig, monitor);
>>
>> I'm attempting the beginnings of trying to refactor a lot of the
>> ASTools launching behavior, and I need to know what kind of changes
>> these profile delegates will make to the launch. I'm not sure I have
>> the proper environment up, but, if you could tell me how to test it
>> and use it, I'd be super grateful.
>>
>> It's always a bit dangerous when touching or moving code that you're
>> not familiar with how it works.
>>
>> This block of code is also a bit inconvenient since it happens after
>> 95% of the launch code but before the vmrunner.run(etc), so it
>> requires us to basically copy a superclass's entire 300 line method in
>> order to sneak the profiling bit in before the launch is run.
>>
>> Anyway, any advice on how this works, what kinda changes it can make
>> to the launch, or how to set up my env to test it, would be very helpful.
>>
>
>_______________________________________________
>jbosstools-dev mailing list
>jbosstools-dev at lists.jboss.org
>https://lists.jboss.org/mailman/listinfo/jbosstools-dev