MikaS (7/30/2014)

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Hi,

OS System Cache is a subset of a Standby List. Standby List is used for pages that have not been touched for awhile and Windows performed memory trimming on them. Also when the process (like sqlservr.exe) is terminated the pages for the exe and the dll's have their pointers updated to point to the Standby List, so that they can be re-assembled from the cache.

Standby List is one of the four lists used by the OS to organize physical memory. They're used by the OS, services, applications etc, so in that regard it can be said that they're also used by the SQL Server 🙂