change the Linux kernel scheduler in the fol-lowing ways. For any process, there should be a system

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change the Linux kernel scheduler in the fol- lowing ways. For any process, there should be a system call to reduce (and NOT increase) the chances that the process would be selected for being dispatched. .

More specifically, let us assume that a certain process is chosen by the sched- uler. The system call must pass on information, the additional delay (in msec) (that has been accepted from the userland) to the scheduler such that anytime the said process is chosen by the scheduler, it adjusts the vruntime of the said process so as to delay its selection. The first program P1 needs to generate an array of 50 random strings (of characters) of fixed length each.

P1 then sends a group of five consecutive elements of the array of strings to P2 along with the ID’s of the strings, where the ID is the index of the array corresponding to the string. The second program P2 needs to accept the received strings, and send back the highest ID received back to P1 to acknowledge the strings received. The program P2 simply prints the ID’s and the strings on the console. On receiving the acknowledged packet, P1 sends the next five strings, with the string elements starting from the successor of the acknowledged ID.

The above mechanism needs to be implemented using three different tech- niques: (i) Unix domain sockets, (ii) FIFOs, and (iii) message passing queues.

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