[ltt-dev] lttv-gui known problem list?

Steve Langstaff steve.langstaff at pebblebay.com
Fri May 22 09:38:51 EDT 2009


> -----Original Message-----
> From: Mathieu Desnoyers [mailto:compudj at krystal.dyndns.org]
 
> * Steve Langstaff (steve.langstaff at pebblebay.com) wrote:
> > Hi all.
> >
> 
> Hi Steve,
> 
> > Is there a known problem list for lttv-gui?
> >
> 
> There are some known limitations in the LTTV roadmap :
> 
> http://ltt.polymtl.ca/svn/trunk/lttv/doc/developer/lttng-lttv-
> roadmap.html
> 
> Buried in the LTTng website under :
> 
> Documentation/Dev Doc/Various LTTng and LTTV Developer Documents
> 
> But it's by no mean complete.

Thanks for that.

> > I am just getting to grips with LTTV and, though it seems to have the
> > potential
> > to be a useful tool, I have noticed a couple of issues with version
> > 0.12.14-15052009 (which I am using with LTTng 0.124) and wondered
> whether
> > there
> > is anything obvious that I am doing wrong.
> >
> > The issues I have seen are:
> >
> > 1) Trace parsing
> >
> > It seems that sometimes (maybe 2 out of 3 times) trace parsing does
> not
> > work correctly - processes that I know are in the trace are not
> displayed,
> > or if they are then the trace duration appears incorrect, or their
> names
> > are missing.

> Is this problem only visible within the "statistics" view ? Is the
> "control flow" view also affected or does it work correctly ?

The problem is with both the statistics view and the control flow view.

I posted a follow-up that showed that valgrind was detecting uninitialized
memory reads when attempting to display the trace, so it could be related
to that.






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