Diagnosis
Paging Out occurs when a process requires access to data that is notcurrently in the main memory while the main memory is full. Before theoperating system can page in the requested data, it must swap out otherpages that are currently not required.

System Response
In principle, paging always reduce performance. Paging out isespecially critical: If the Virtual Memory Management has to store apage in the Swap Space several times, it leads to a memory bottleneckthat significantly reduces performance. The critical level of pagingout depends on the operaitng system.
If the paging out is higher than the paging in, the system increasesthe size of the paging file - the main memory's overload.

Procedure
High levels of paging can have the following causes:

• Too many processes are running on the server


• The server's main memory is too small for the current demand

You can avoid high levels of paging by taking the following measures:

• Better distribution of running processes to various servers


• Better distribution of running processes to periods of low load


• Install more main memory