More info on settings appearing in the logs?

I see in the HF-TF CPU endpoint image log logs the following:

```
Preload model: false
Prefer direct buffer: false
```

What is this? Some nice serving settings that we can tune? Is it explained in some doc?

The issue names only the HF-TF CPU endpoint image and the two log settings, not a source file, test, or documentation page. Start by locating where these log lines are emitted and checking the existing serving documentation. Done means explaining both settings and documenting whether users can tune them.

Written by the indexing model from the issue text.