Re: [tracecompass-dev] TimeGraphView Visualization Bug

[Aleix Roca Nonell <aleix.rocanonell@xxxxxx>]

Hi Patrick!

I have just downloaded and compiled tracecompass from the eclipse git
repo (I have seen that your patch is merged now) and the problem is
now solved! Now I both see the black dots and stable states.

Now I can perfectly analyze my application! A minor stetic issue
remains though. Sometimes I see small grey states, I zoom a bit, the
state turns green, I zoom a bit, the state turns grey again, I zoom a
bit, the state turns green and repeats until the colors ramains green.

Thank you (and also tahini and TheMatthew who helped me on IRC)!!

On Wed, May 16, 2018 at 01:15:14PM -0400, Patrick Tasse wrote:
> Hi Aleix,
> 
> I think it's because XML Time Graph views do not draw sampling gaps at all.
> 
> I wrote a bug to track this [1]. Can you check if the patch [2] fixes your
> issue?
> 
> Thanks,
> Patrick
> 
> [1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=534773
> [2] https://git.eclipse.org/r/122806
> 
> 
> On Wed, May 16, 2018 at 12:48 PM, Aleix Roca Nonell <aleix.rocanonell@xxxxxx
> > wrote:
> 
> > Sorry, I forgot to mention that this happens on a custom XML Time Graph
> > View.
> > I'm attaching the custom view that I'm using and an example trace
> > (2GiB when uncompressed).
> >
> > https://mega.nz/#!yZIi2awZ!GkWbwnQb080YfDILVaKTEHM8k1YeLY8eh6YEyqrAFsk
> >
> > I also confirm that the problem persists on the latest Trace Compass night
> > build.
> >
> > On Wed, May 16, 2018 at 05:23:17PM +0200, Aleix Roca Nonell wrote:
> > > Hello list!
> > >
> > > I'm having eye ache analyzing an application with Trace Compass due to
> > > a visualization bug which has been in mainstream for some time. I have
> > > detected two problems:
> > >
> > >  - The fist one is missing "small black dots" that highlight events
> > >    not being drawn on screen because of having a too high zoom out.
> > >  - The second appears as I'm zooming in little by little. I see how
> > >    small events appear and disappear i.e. in zoom A an event (small
> > >    rectangle) is being drawn, but in zoom A+1 this event has
> > >    completely disappeared. The process repeats until events
> > >    "stabilize".
> > >
> > > Please, take a look at the following sequence of screenshots which try
> > > to better ilustrate the problem. Each screenshot increases by one the
> > > zoom level with respect to the previous image. The correct ordering is
> > > the timestamp in the image name (just sort it by name if downloaded).
> > >
> > > https://drive.google.com/open?id=12AcE0G33F-SIB2fDprE84eSENMGFIBqZ
> > >
> > > I'm using the last stable release of Trace Compass 3.3.0.
> > >
> > > Could you try to fix it? It's hard to find specific events if they
> > > only apprear when zooming in the area.
> > >
> > > Thank you!
> > >
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