[Maya-Python Club:1403] Re: maya scripted plugin - memory leak

[Ben Chess]

Maya 2008 (original release) leaks python memory like a sieve.  You can cause a leak by doing a cmds.about() in a loop.  2008.2 is better, though there are still many trouble spots. /B Nicolas Combecave wrote: We also noticed a memory leak just by using a very basic mel loop with a setAttr, under maya7.0.1 linux. Open a fresh maya, and type this in script editor, to see if you notice it too? for ($i=0; $i<100000; $i++) { setAttr persp.tx 0; } Nicolas On Fri, Oct 24, 2008 at 10:25 AM, bruno ebe <bruno...@gmail.com> wrote: Hi again ok I tried the MEL command in the same loop (but in MEL) over the same fluid container and had no leak (I even tried it several times to be sure that the leak was not just smaller...) so I tried to use the mel.eval() command from python inside my python loop for x in range( resX ):        for y in range( resY ):                for z in range( resZ ):                        mel.eval( `fluidVoxelInfo -voxelCenter -xi ` +str(x)+` -yi `+str(y)+` -zi `+str(z)+` `+fluidName+`;`) but this way I have leaks again... can it be that the python version of fluidVoxelInfo is in fact equal to: mel.eval('fluidVoxelInfo...) ? regards Bruno On Oct 24, 10:30 am, bruno ebe <bruno...@gmail.com> wrote: > Hi Chris > I am using maya 8.5 on windows 64bits > any known issues with that? > > I am about to try the same code in MEL and keep you posted > regards > Bruno > > On Oct 24, 1:11 am, "Chris G" <cgreb...@gmail.com> wrote: > > > What version of Maya are you using? > > > On Thu, Oct 23, 2008 at 11:30 AM, bruno ebe <bruno...@gmail.com> wrote: > > > > Hello everybody > > > > I am trying to develop a scripted plugin in python > > > In this plugin I go through all the voxels to get their position > > > > for x in range( resX ): > > >        for y in range( resY ): > > >                for z in range( resZ ): > > >                        voxPos=fluidVoxelInfo( fluidName, voxelCenter=True, > > > xi=x, yi=y, > > > zi=z) > > >                        ... > > > > When running this plugin I can see the memory increasing but it never > > > flushes > > > I started debugging by commenting out everything and I then figured > > > out that the problem was in the loop > > > and in this loop was left only this line: > > > voxPos=fluidVoxelInfo( self.__fluid__, voxelCenter=True, xi=x, yi=y, > > > zi=z) > > > > my idea is that the variable voxPos is not reused and some new part of > > > the memory is allocated... > > > I thought that python managed memory and variables by itself > > > so I am not really sure of what I am stating there... > > > > does anyone already got this kind of issue? or smells where it can > > > come from? > > > maybe there is a python command to force a variable to flush? this can > > > be an interesting test but I dont know such command > > > > thanks a lot for your help > > > best regards > > > Bruno --~--~---------~--~----~------------~-------~--~----~ Yours, Maya-Python Club Team. -~----------~----~----~----~------~----~------~--~---