Szerintem nem Windows-ról volt szó, de legyen egy kis ontopic is, ha már Windows pagefile kezelés:
When reads or writes to the paging file are occurring (through IoPageRead and IoPageWrite), Windows checks whether the request comes from kernel mode and is not being performed on behalf of Superfetch (which always uses idle I/O). In this case, the IRP uses normal priority even if the current thread has a lower I/O priority. This is called the paging bump.
Forrás: https://www.microsoftpressstore.com/articles/article.aspx?p=2201309&seq…
Üdv,
Marci