API Reference > presentation-backend > Core > DiskHierarchyCacheConfig > memoryCacheSize memoryCacheSize memoryCacheSize: undefined | number While the cache itself is stored on a disk, there's still a required small in-memory cache. The parameter allows controlling size of that cache. Defaults to 32768000 (32 MB). alpha Defined in presentation/backend/src/presentation-backend/PresentationManager.ts Line 111 Last Updated: 12 June, 2024