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| [Resolved]: Memory leak in SimpleVolume and... http://www.volumesoffun.com/phpBB3/viewtopic.php?f=15&t=296 |
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| Author: | thomasfn [ Sat Dec 03, 2011 8:06 pm ] |
| Post subject: | [Resolved]: Memory leak in SimpleVolume and... |
Title says it all. It probably wasn't detected due to the fact most applications using polyvox only have a couple of simple volumes. In my application, I created and destroyed a vast number of them and my RAM usage skyrocketed. After using some tools to track down the source of the memory leak, I found that "m_pUncompressedBorderData" wasn't being delete'd from SimpleVolume and "m_tUncompressedData" wasn't being delete'd from SimpleVolume::Block. I was looking in "SimpleVolume.inl" and "SimpleVolumeBlock.inl" for reference. The leak can fixed by quite simply delete'ing the variables in the destructor of both classes. SimpleVolume already has a destructor in the inl file, but SimpleVolume::Block will need one added in t he header. After applying this fix, my application's memory usage dropped from 600mb+ to about 50mb after about 60 seconds of walking around my terrain (I use a chunk based system, 16x16x16 size chunks make up the terrain and each chunk uses a SimpleVolume to generate the mesh). |
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| Author: | David Williams [ Mon Dec 05, 2011 8:58 am ] |
| Post subject: | Re: Memory leak in SimpleVolume and SimpleVolume::Block |
Thanks, but I think this is probably already fixed in Git Master: http://www.volumesoffun.com/phpBB3/viewtopic.php?p=2111#p2111. Let me know if I'm mistaken though. On a related note, if you are creating/destroying a large number of these volumes (for a paging system?) then you should possibly be using LargeVolume instead. |
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| Author: | thomasfn [ Mon Dec 05, 2011 4:42 pm ] |
| Post subject: | Re: Memory leak in SimpleVolume and SimpleVolume::Block |
Well I was using the latest snapshot, not the GIT version, so that's entirely possible. Also I am using a paging system (of sorts) but my world isn't finetly big. (Well it is, the limitation is the capacity of a int32, like Minecraft) so I have to push lots of small chunks of terrain into Polyvox. |
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