Re: [linuxtools-dev] Linuxtools unified launch

[Jeff Johnston <jjohnstn@xxxxxxxxxx>]

On 10/09/2012 04:58 PM, Wainer Moschetta wrote:
> On 10/09/2012 05:51 PM, Jeff Johnston wrote:
> > On 10/09/2012 04:33 PM, Roland Grunberg wrote:
> > > > How to define which profile tool to use with this unified launch?
> > > > Because right now linuxtools
> > > > have Valgrind (and all the subtools), Oprofile, Perf ....
> > > >
> > > > Maybe running all the available tools and providing all the results
> > > > in a "Profile" perspective?
> > > >
> > > > Sorry to jump in the middle of the discussion ... I just feel that I
> > > > am missing something here.
> > >
> > > Massif, Cachegrind, Memcheck, Helgrind, Perf, OProfile, Callgraph,
> > > Gcov, GProf are all contributing to this unified launch. In most
> > > cases the extent of this contribution means they contribute to
> > > an extension point we've defined in the profiling launch plugin
> > > (schema/org.eclipse.linuxtools.profiling.launch.provider.exsd).
> > >
> > > I think running all available tools would be too much. The best
> > > option is to run some default tool, and allow the user to change
> > > their preferences should they wish to use another tool. Keep in
> > > mind that most users may not know what profiling tools are out
> > > there so having an option like "Profile Memory", and using
> > > Valgrind's Memcheck plugin by default would be a very sane thing
> > > to do.
> > >
> > > You can find more information about this here :
> > >
> > > http://wiki.eclipse.org/Linux_Tools_Project/Profiling/Unification
> >
> > I have also created a first draft of a User's Guide:
> >
> >   http://wiki.eclipse.org/Linux_Tools_Project/Profiling/User Guide
>
> I would recommend create a new category only for Oprofile and Perf since
> they are more than just timing profilers. In fact, they are hardware
> events profilers.

That is a possibility.  We should be able to support tools in multiple 
categories (with different default settings even...think SystemTap and 
all it can do).  I would not put OProfile/Perf exclusively into this new 
category as an inexperienced user would be unlikely to know the tools 
enough to know what that they are and how to configure them.  In my 
mind, Perf is the best for timing (no set-up, quick, no special access 
required, and reasonably accurate) and is the default pick for the 
timing category.

> > if you want the user perspective.
> >
> > -- Jeff J.
> > > Cheers,
> >
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>
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