In Thrashing the Cpu Utilization?

Thrashing is a state in which our CPU perform 'productive' work less and 'swapping' more. CPU is busy in swapping pages, so much that it can not respond to user program as much as required. Why it occurs : In our system, Thrashing occurs when there are too much pages in our memory, and each page refers to another page.

What happens to the CPU utilization when thrashing?

Thrashing is a state in which the CPU performs 'productive' work less, and 'swapping' more. The overall memory access time may increase since the higher level memory is only as fast as the next lower level in the memory hierarchy.

Does thrashing decrease CPU utilization?

Thrashing occurs when a system spends more time processing page faults than executing transactions. While the transactions in the system are waiting for the paging device, CPU utilization, system throughput and system response time decrease, resulting in below optimal performance of a system . ...