What are the various kinds of

When an interrupt occurs the currently executing process is interrupts and its state is stored in the appropriate process control block.The interrupt service routine is then dispatch in order to deal with the interrupt. On completion of handling of the interrupt, the state of the process is restored and the process is resumed. Therefore, the performance overheads include the cost of saving and restoring process state and the cost of flushing the instruction pipeline and restoring the instructions into the pipeline when the process is restarted.