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Define thrashing. Thrashing is the accident of high page traffic and low CPU utilization. It is observed that the cause of thrashing is an under-commitment of memory to program
8(5-3)-20=
Q. Distinguish among PCS and SCS scheduling. Answer: PCS scheduling is completed local to the process. It is how a thread library schedules threads onto available LWPs. SCS sch
What is process control block? Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
How Memory utilization factor shall be computed Memory utilization factor shall be defined as Memory in use/total memory connected
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
Define semaphore A semaphore is a protected abstract or variable data type that constitutes the classic method for restricting access to shared resources like shared memory in
Write a note on deadlocks. The proper definition of deadlock A set of processes is deadlocked if every process in the set is waiting for an event that only a proces
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
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