danny couture 29b92f2cd3 Reduce memory usage for importing lots of meshes (56.17GB to 45.75GB -> ~18% for DATASET-0010a) ...

- Clear MeshDescription once serialized in BulkData after UStaticMesh Build (56.17GB peak to 51.28GB)
  - Clear SourceModels from DatasmithMesh as soon as possible (51.28GB peak to 48.8GB)
  - Remove CommitMeshDescription from FillUStaticMesh since already in PreBuildStaticMesh phase (48.8GB peak to 45.75GB)

From dev-enterprise@6953449

#rb jeanmichel.dignard, johan.duparc
#jira UE-63369

[CL 7248033 by danny couture in 4.23 branch]

2019-07-09 09:41:02 -04:00

..

Private

Reduce memory usage for importing lots of meshes (56.17GB to 45.75GB -> ~18% for DATASET-0010a)

2019-07-09 09:41:02 -04:00

Public

#UE4 Large compile speed improvement. Moved ranged-based for implementations from global overloads to members of their respective classes. Compilers were spending a lot of time resolving these overloads in global space but do not have the same problem now that they are in the scope of the class. Measured to save 20-40% compile time on files in the engine that use range-based for.

2019-02-07 20:59:02 -05:00

MeshDescription.Build.cs

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