Live mmeory from style sheet cache
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Key: TRINIDAD-1782
URL: https://issues.apache.org/jira/browse/TRINIDAD-1782
Project: MyFaces Trinidad
Issue Type: Bug
Components: Skinning
Affects Versions: 1.2.12-core
Reporter: Stevan Malesevic
Trinidad 1702 optimized a memory for style cache by introducing cache map.
There are a couple of issues with this fix and couple of optimizations that
should be done to reduce memory and cpu
1. _styleNodeToStyleMap maps key to cssstlye. What happens is that StyleKey
holds onto style properties and then CSSStyle copies style properties. So we
end up with both StyleKey and CSSStlye pinning memory for the same thing. This
essentially doubles a memory usage. IN some test apps memory per browser was
7.2MB and then multipley bu number of browsers. This memory should be just
3.6MB per browser if we avoid copy of the map in BaseStlye but rather referece
styles
2. StyleKey should cache calculated hash code to avoid expensive computation
3. _styleNodeToStyleMap might be moved to FileSystemStyleCache to take
adventage of same entires on the higher , browser or verion or platform layer
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