Subsystem tags for the read request, describing broad asset type or subsystem that triggered the read request.
| Other | The subsystem where the read request originated is unknown. | 
| Texture | The read request originated in texture loading. | 
| VirtualTexture | The read request originated in Virtual Texturing. | 
| Mesh | The read request originated in mesh loading. | 
| Audio | The read request originated from an audio subsystem. | 
| Scripts | The read request originated in scripts. | 
| EntitiesScene | The read request originated in a Unity.Entities scene loading subsystem. | 
| EntitiesStreamBinaryReader | The read request originated in a Unity.Entities.Serialization binary reader subsystem. | 
| FileInfo | A request for file information. |