[vtk-developers] Offscreen rendering OpenGL, linux, leaks memory

[Aashish Chaudhary]

Did you run with this option? (See the message below)

 To see them, rerun with: --leak-check=full --show-leak-kinds=all

On Thu, Jun 9, 2016 at 2:45 PM, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> I did run it, it does not report anything. This is the report for 10
> iterations. It was similar for 10000.
> Maybe the memory is allocated by the driver and not caught by valgrind.
>
> =24195== HEAP SUMMARY:
> ==24195==     in use at exit: 113 bytes in 3 blocks
> ==24195==   total heap usage: 28,105 allocs, 28,102 frees, 18,108,607
> bytes allocated
> ==24195==
> ==24195== LEAK SUMMARY:
> ==24195==    definitely lost: 0 bytes in 0 blocks
> ==24195==    indirectly lost: 0 bytes in 0 blocks
> ==24195==      possibly lost: 0 bytes in 0 blocks
> ==24195==    still reachable: 113 bytes in 3 blocks
> ==24195==         suppressed: 0 bytes in 0 blocks
> ==24195== Reachable blocks (those to which a pointer was found) are not
> shown.
> ==24195== To see them, rerun with: --leak-check=full --show-leak-kinds=all
> ==24195==
> ==24195== For counts of detected and suppressed errors, rerun with: -v
> ==24195== Use --track-origins=yes to see where uninitialised values come
> from
> ==24195== ERROR SUMMARY: 292 errors from 5 contexts (suppressed: 0 from 0)
>
>
> On Thu, Jun 9, 2016 at 2:24 PM, Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
>
>> If you are on linux, can you run valgrind on this?
>>
>> Bill
>>
>> On Thu, Jun 9, 2016 at 1:37 PM, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>> > Hi all,
>> > Does anybody have seen or has advice on fixing the following bug.
>> > Thank you.
>> >
>> > http://www.vtk.org/Bug/view.php?id=16744
>> >
>> > I paste here a portion of the test I am using. The whole test is in
>> mantis.
>> >
>> > 10000 iterations of Render leak about 20MB according the reports from
>> the
>> > OS. The render window is kept around and the renderer and all other
>> objects
>> > are deleted and and re-added at each iteration.
>> >
>> > The same program does not leak for onscreen OpenGL or offscreen/onscreen
>> > OpenGL2.
>> >
>> >
>> >
>> > void iteration(int i, vtkRenderWindow* renderWindow)
>> > {
>> >   vtkSmartPointer<vtkCylinderSource> cylinder =
>> >     vtkSmartPointer<vtkCylinderSource>::New();
>> >   cylinder->SetResolution(8);
>> >
>> >   vtkSmartPointer<vtkPolyDataMapper> cylinderMapper =
>> >     vtkSmartPointer<vtkPolyDataMapper>::New();
>> >   cylinderMapper->SetInputConnection(cylinder->GetOutputPort());
>> >
>> >   vtkSmartPointer<vtkActor> cylinderActor =
>> >     vtkSmartPointer<vtkActor>::New();
>> >   cylinderActor->SetMapper(cylinderMapper);
>> >   cylinderActor->GetProperty()->SetColor(1.0000, 0.3882, 0.2784);
>> >   cylinderActor->RotateX(30.0);
>> >   cylinderActor->RotateY(-45.0);
>> >
>> >   vtkSmartPointer<vtkRenderer> renderer =
>> >     vtkSmartPointer<vtkRenderer>::New();
>> >   renderer->AddActor(cylinderActor);
>> >   renderer->SetBackground(0.1, 0.2, 0.4);
>> >   // Zoom in a little by accessing the camera and invoking its "Zoom"
>> > method.
>> >   renderer->ResetCamera();
>> >
>> >   renderWindow->AddRenderer(renderer);
>> >   renderWindow->Render();
>> >   renderWindow->RemoveRenderer(renderer);
>> > }
>> >
>> > int main()
>> > {
>> >   vtkSmartPointer<vtkRenderWindow> renderWindow =
>> >     vtkSmartPointer<vtkRenderWindow>::New();
>> >   renderWindow->SetSize(200, 200);
>> >   //renderWindow->OffScreenRenderingOn();
>> >   for (int i = 0; i < 10000; ++i)
>> >     {
>> >     iteration(i, renderWindow);
>> >     if (i % 10 == 0)
>> >       {
>> >       std::cout << i << " ==== Iteration ====" << std::endl;
>> >       os_memory_usage();
>> >       }
>> >     }
>> >   return 0;
>> > }
>> >
>> >
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>>
>>
>>
>> --
>> Unpaid intern in BillsBasement at noware dot com
>>
>
>
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-- 



*| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
*| http://www.kitware.com/company/team/chaudhary.html
<http://www.kitware.com/company/team/chaudhary.html>*
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