[vtkusers] Re: Memory loss under dual-cpu/Win2000/OpenGL

[Lisa Sobierajski Avila]

Hi Nigel,

I have a similar problem under Windows 2000 which I was blaming on my video 
driver, but maybe it is the fact that my machine has two processors, who 
knows? VolView takes about 350MB just to start (no data loaded) where it 
takes under 30 on a Windows NT system with the same video card. I have not 
looked carefully at whether VTK causes leaks, but everything seems to (even 
when I am not running VTK the memory size grows until I need to reboot)

Lisa

At 07:44 PM 11/5/2000, Nigel Nunn wrote:
>Hi Sebastien,
>
> > I've just installed w2K. I'll check if there is
> > a leak too.  Did you install the SP1 ?
>
>"About Windows" shows this:
>
>   Version 5.0 (Build 2195 Service Pack 1)
>
>I cannot find any mention of this memory situation anywhere,
>so I assume it may only be occurring on multi-cpu machines.
>I sent a note to Microsoft, and described my problem to the
>OpenGL gamers at an http://www.2cpu.com forum.  Perhaps few
>folks use the Task Manager to check such things?  May be that
>those playing OpenGL games only launch a few OpenGL processes
>between reboots... thus simply do not notice that the committed
>system memory rises so dramaticly?
>To check if you get the same problem, open the Windows Task
>Manager and see whether the number for "Total" rises by 4MB
>after any OpenGL app exits (e.g. running Vtk TCL scripts)
>
>    -- Commit Charge (K) ------
>     Total           142,000     <-- committed / lost
>     Limit         1,263,528     <-- includes swapfiles
>     Peak            250,492     <-- peak used
>    ---------------------------
>
>Looking forward to your results!
>Nigel
>
>
>--- previously ---
>
> > > On August 28 I described a massive memory leak our dual-cpu
> > > Win2000 boxes were having with Vtk/OpenGL.  Finally got around
> > > to running our application on WinNT 4 and Win98 single cpu
> > > machines... and the good news is that there was none of the
> > > memory loss described earlier (40MB, plus 4MB per run!).
> > > So, seems to be related to Win2000/OpenGL, as suggested
> > > by Kitware folks.  Will send a note to MS and report back.
> > >
> > > I've just installed w2K. I'll check if there is a leak too.
> > > Did you install the SP1 ?
>
>
>
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