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define busy waiting and spinlockwhen a process is in its significant section any other process that tries to enter its critical section must loop
what is a semaphorea semaphore s is a synchronization tool which is an integer value that apart from initialization is accessed only by two
in which platform can i best develop a college financialaccounting system what modules can it
define entry section and exit sectionthe critical section problem is to design a protocol that the processes can use to cooperate every process must
what is critical section problemconsider a system consists of n processes every process has segment of code called a critical section in which the
define race conditionwhen various process access and manipulate similar data concurrently then the outcome of the execution depends on certain order
what is turnaround timeturnaround time is the interval from the time of submission to the time of completion of a process it is the sum of the
define throughputthroughput in cpu scheduling is the number of processes that are completed per unit time for long processes this rate might be one
what are the various scheduling criteria for cpu schedulingthe various scheduling criteria are cpu
what is dispatch latencythe time taken by the dispatcher to stop one process and begin another running is known as dispatch
what is a dispatcherthe dispatcher is the module that gives control of the cpu to the process selected by the short- term scheduler this function
what is preemptive and nonpreemptive schedulingunder nonpreemptive scheduling once the cpu has been allocated to a process the process keeps the cpu
define cpu schedulingcpu scheduling is the method of switching the cpu among several processes cpu scheduling is the basis of multiprogrammed
what are the different ways in which a thread can be cancelledcancellation of a target thread may happen in two different scenarios asynchronous
define thread cancellation amp target threadthe thread cancellation is the task of terminating a thread before it has completed a thread that is to
what is the use of fork and exec system callsfork is a system call by which a latest process is created exec is also a system call which is used
compare user threads and kernel threadsuser threads-user threads are supported above the kernel and are executed by a thread library at the user
what are the benefits of multithreaded programmingthe advantages of multithreaded programming can be broken down into four main categories
what is a threada thread or else called a lightweight process lwp is a basic unit of cpu utilization it comprises of a thread id a program counter a
process terminationa process terminates when it finishes implementing its final statement and asks the operating system to delete it by using the
what are the operations of processesprocess creationa process may create several new processes the creating process is called as parent process where
list and discuss the various services provided by the operating system program execution - system capability to load a program into memory and to run
bufferingmessages exchanged by communication processes reside in a impermanent queue such a queue can be executed in three ways zero capacity the
synchronizationin communication among processes messages passed may be blocking or nonblocking - also called as synchronous and asynchronousblocking
direct communicationwith direct communication each process that requires to communicate must explicitly name the recipient or sender of the