Entities Preferences reference
The Preferences window in the Unity Editor (Unity > Settings) contains some specific Entities settings, as follows:
Hierarchy window
| Property | Description | 
| Update Mode | Set how to update the Entities Hierarchy window: Synchronous: Updates the hierarchy in a blocking manner. Data is always up to date, but might impact performance.Asynchronous: Updates the hierarchy in a non-blocking manner, over multiple frames if needed. Data might be stale for a few frames, but the impact on performance is minimized.
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| Minimum Milliseconds Between Hierarchy Update Cycle | Set the minimum amount of time to wait between hierarchy update cycles in milliseconds. Increase this value to update the Entities Hierarchy window less frequently, which has a lower impact on performance. | 
| Exclude Unnamed Nodes For Search | Excludes unnamed entities in the results of searching by string. If there are a lot of unnamed entities, this can speed up searching. | 
Advanced
| Property | Description | 
| Show Advanced Worlds | Displays advanced worlds in the different world dropdowns. Advanced worlds are specialized worlds like the Staging world or the Streaming world which serve as support to the main worlds. | 
Journaling
| Property | Description | 
| Enabled | Enable Journaling data recording. | 
| Total Memory MB | Set the amount of memory in megabytes allocated to store Journaling record data. Once full, new records overwrite older records. | 
| Post Process | Post-process journaling data in the Journaling window. This includes operations such as converting GetComponentDataRWtoSetComponentDatawhen possible. | 
Baking
| Property | Description | 
| Scene View Mode | Choose the data mode for Scene view. You can choose from Authoring Data or Runtime Data. | 
| Live Baking Logging | Enable this property to output a log of live baking triggers. This can help diagnose what causes baking to happen. | 
| Clear Entity cache | Forces Unity to re-bake all Sub Scenes the next time they're loaded in the Editor, or when making a standalone player build. | 
Systems window
| Property | Description | 
| Show 0s in Entity Count And Time Column | Displays 0in theEntity Countcolumn when a system doesn't match any entities. If you disable this property, Unity displays nothing in theEntity Countcolumn when a system doesn't match any entities. | 
| Show More Precision For Running Time | Increases the precision from 2 to 4 decimal places for the system running times in the Time (ms)column. |