[vtkusers] Free x server memory

[Francois Bertel]

you can get the version of your driver with:

$ glxinfo | grep "OpenGL version"

Again, if the application exited, then this is out of the scope of
VTK. This is a leak on the driver side, this a bug in the nVidia
driver, not in VTK.


On Tue, Apr 6, 2010 at 11:31 AM, Mathieu P <mtp.vtk at gmail.com> wrote:
> Hello :
> First i am using
> OpenSUSE
> Graphic NVIDIA Quaddro  FX1700
> Dont know the exact nvidia driver version, but recent.
> I am using a QVTKWidget.
> I cannot delete vtkRenderWindow and vtkRenderWindowInteractor because it's
> done in the QVTKWidget desctructor.
> (i get a crash if i try)
> I have tried to use the mapper :: ImmediateRenderingOn() function. it's
> partially solve the problem because there is no more display lists loaded in
> the x server, so no memory at the exit, but it's very slow (very slow frame
> rate ~2), and cannot be used for real time rendering.
> I have also tried to make the rendering window inside the QVTKWidget
> current, and call glDeleteLists(0,0xFFFFFFFF). But no result. I have always
> my 300MB of lung tree datas in the X Server.
> I have no any problem with other 3D applications...
>
> Cordialement,
>
> -- Mathieu PICCIN
>
>
>
>
> On Tue, Apr 6, 2010 at 4:19 PM, Francois Bertel
> <francois.bertel at kitware.com> wrote:
>>
>> Hello,
>>
>> If there is a leak in the Xserver after the vtk based program exit
>> then this is out of the scope of VTK.
>>
>> It can be a bug in your X server or it can be some result that the X
>> server caches (it can cache a database of fonts and symbols).
>>
>> What happen when you start/exit another application regarding the X
>> server memory consumption (try a big app like Firefox, try an
>> OpenGL-based app like glxgears)? How do you measure this memory
>> consumption?
>>
>> What's your OS, graphics cards, graphics card driver?
>>
>>
>> On Fri, Apr 2, 2010 at 8:33 AM, Mathieu P <mtp.vtk at gmail.com> wrote:
>> > Actually i cannot delete vtkRenderWindow or vtkRenderWindowInteractor
>> > without program crash.
>> >
>> > I am using QVTKWidget, and i cannot understand why my X Server continue
>> > to
>> > have 300MB loaded in memory after program exit...
>> >
>> > I have already tried some vtkRenderWindow->Finalize() and
>> > vtkRenderWindowInteractor->Start()...
>> >
>> >
>> > Cordialement,
>> >
>> > -- Mathieu PICCIN
>> >
>> >
>> >
>> >
>> > On Thu, Apr 1, 2010 at 5:52 PM, Mathieu P <mtp.vtk at gmail.com> wrote:
>> >>
>> >> Hi all,
>> >>
>> >> I am loading a huge data set of points (to display lungtrees) with VTK.
>> >> When i exit the application i have 300 MB of memory used by my X
>> >> Server.
>> >>
>> >> I have tried to Delete renderer, renderWindow, renderWindowInteractor,
>> >> without any change.
>> >>
>> >> I have also tried to use the VTK WIKI way to delte point, but no
>> >> success...
>> >>
>> >> Is there a specific way to free memory from the X Server when exiting
>> >> vtk
>> >> ?
>> >>
>> >> Thanks,
>> >>
>> >> Cordialement,
>> >>
>> >> -- Mathieu PICCIN
>> >>
>> >>
>> >
>> >
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>> >
>>
>>
>>
>> --
>> François Bertel, PhD  | Kitware Inc. Suite 204
>> 1 (518) 371 3971 x113 | 28 Corporate Drive
>>                      | Clifton Park NY 12065, USA
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>
>



-- 
François Bertel, PhD  | Kitware Inc. Suite 204
1 (518) 371 3971 x113 | 28 Corporate Drive
                      | Clifton Park NY 12065, USA