What is thrashing in computer terminology?

Answer 1

Thrashing is a high paging activity. A process is thrashing if it is spending more time with paging rather than execution.

Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing by evaluating the level of CPU utilization as compared to the level of multiprogramming.

Caused by:-

• Global replacement algorithm.
• Under allocation of the minimum number of pages required by a process.
• Very high degree of multiprogramming.

Eliminated by:-

• Reducing level or degree of multiprogramming.
• Use local replacement algorithm.
• While allocating check minimum sufficient frame required for a process.

Answer 2

if a page on near execution on main memory.swap out the process from execution