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Explain what semaphores are, their usage, implementation given to avoid busy waiting and binary semaphores.
Semaphore definition
Usage for mutual exclusion and process synchronization
Implementation to avoid spinlock using block and wakeup
Binary semaphores
Priority Scheduling leads to the risk of starvation: a process is ready, but never is given the processor. Some preemptive priority schedulers therefore reserve a fraction of the p
Q. Advantages and disadvantages of multiprogramming? Advantages 1. High CPU utilization. 2. It appears that many programs are allotted CPU almost concurrently. D
what is independent process? distinguished between independent process and co-operating process
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
What is meant by arm-stickiness? If one or a few processes have a high access rate to data on single track of a storage disk, then they might be monopolizing the device by repe
What is a Latency Time Latency Time is the time required through a sector to reach below read/write head.
What is single and multithreading and thread pool?
Long term scheduler calculates which processes are admitted to the machine for processing. It accepts the degree of multiprogramming. Once accepted, a job converts a process.
What factors are involved in choosing the host operating system?
Removing System Dependencies Because portions of the client - server application program may execute on different machines, it is very important for the developer to remove the
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