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Topic: Frontend graphics memory leak
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Roger Wilson

Posts: 16
Registered: 10/23/10
Frontend graphics memory leak
Posted: Mar 29, 2012 4:02 AM
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When using Rasterize on a Graphics expression composed of many differently coloured Graphics objects memory is allocated in the frontend which is then not released or reused when a similar graphic object is created.

Rasterize (or its underlying machinery) is used underneath Export when a graphic object is exported using Export, for instance when creating a jpg file.

In the example given 4Mb of memory is allocated each cycle but not freed. Eventually the frontend will crash.

Do[Sleep[3];img = Rasterize[Graphics[Table[{ColorData["TemperatureMap"][RandomReal[]],Circle[{RandomReal[],RandomReal[]},1.0]},{1000}]]],{1000}];

Does anyone know if this is a known bug and if there are any workarounds pending a fix from Wolfram?




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