Assume that you are now in possession of two SS CPUs. What is the total number of cycles that will be required for these two threads to finish executing? How much of the available issue slots are lost due to the presence of hazards?
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- Assume you have two SS CPUs at your disposal. How many cycles will it take to run through these two threads one after the other? How many issue slots are squandered as a result of hazards?Assume you have two SS CPUS at your disposal. How many cycles will it take to run through these two threads one after the other? How many issue slots are squandered as a result of haAssume that you are now in possession of two SS CPUs. What is the total number of cycles that will be required for these two threads to finish executing? How much of the available issue slots are lost due to the presence of hazards?
- true or false a. All of the instructions in a System function call in a user-program are executed in kernel-mode. b. A process immediately upon creation at t=0 creates 10 threads; each of the threads intends to sleep for 2sec and then execute code for 4sec. In the mean-time the process terminates after the thread creation task that lasts 1sec. It is possible that the wall-clock (outside clock) time of the execution of a thread will be more than 40sec. c. The PCB of a process is stored in an individual process's memory in user-space.a. Can a process make transition from Ready state to Blocked state? Why orwhy not?b. Which scheduler must work very fast in order not to waste significantCPU time? Which can be slowc. What are the advantages of multiprogramming over non-multiprogramming systems?d. Is there any protection between threads of a process?e. How threads are more efficient in multiprocessor system?f. What is the advantage of thread switching over process switching? Why?g. What is the advantage of implementing threads in the kernel?h. When are counting semaphores used?i. What is the difference between multiprogramming and multiprocessing?j. When should a user use time-sharing system than personal computer orsingle-user?When this option is available, the I/O queue should be prioritised above the process execution queue. In what ways may this be beneficial? Who knows what will take place if there is a disruption in the I/O. It is unclear at this time if this will have an effect on the maximum burst rate of the CPU. I'm not really clear on the point you're trying to make here.
- Would you agree that suspended processes will always hold a zero (0) value for both read and write I/O operations? Is the number of threads directly proportional to the number of bytes written by the process in I/O operation?Consider a multicore system and a multithreaded program writtenusing the many-to-many threading model. Let the number of user-levelthreads in the program be greater than the number of processing coresin the system. Discuss the performance implications of the followingscenarios.a. The number of kernel threads allocated to the program is less thanthe number of processing cores.b. The number of kernel threads allocated to the program is equal tothe number of processing cores.c. The number of kernel threads allocated to the program is greaterthan the number of processing cores but less than the number ofuser-level threads Note : Reply shortlyOn a system using either M:1 or 1:1 mapping, user level threads reflect both the scheduling of the user thread library and this of the kernel. o True O False Question 5 Assume a 2 way threaded multi-core processor with 6 cores. You are allowed to generate UP TO 80 threads in total, including hardware and software threads for applications that are heavy/intense in computations for 2 cases: Case 1) the threads get constantly their operands through an external process through pipes, Case 2) the threads have a list of the operands stored in their private stack. Answer with a number: 1-80: How Many USER threads is it best to use in case 1 O 36 O 18 O 24 O 12 O 48
- Consider a multicore system and a multithreaded program writtenusing the many-to-many threading model. Let the number of user-levelthreads in the program be greater than the number of processing coresin the system. Discuss the performance implications of the followingscenarios.a. The number of kernel threads allocated to the program is equal tothe number of processing cores.b. The number of kernel threads allocated to the program is greaterthan the number of processing cores but less than the number ofuser-level threads NOTE : Reply ShortlyYou are told that a given system uses Segmentation. The memory is currently full and holds 3 processes "A", "B" and "C" each of size 512KB as well as the kernel whose size is 1024KB. You can assume there is nothing else that is taking up memory. A Timer Interrupt forces a context switch to occur and the scheduler chooses to load process "B" into the CPU and change its state to running. You are told that the base of the stack which grows upwards for processB is found at the very end of our physical memory. You are also told that the last portion of the Address Space for each process is used for the Stack. After the Context switch which process does the values in the segment register correspond to? C + x What is the Physical Address of the base of the stack for ProcessB? (Just give the value in KB) 1536 What is the offset of the Virtual Address 500KB in KB? (Just give the value) 32 What is the Physical Address that the Virtual Address 500KB maps to in KB? (Just give the value) 1524Consider the following processes and their associated threads running on a multiprocessor system: Process Thread Arrival Time CPU Burst I/O Burst Total CPU Time X X1 0 4 2 11 X2 3 2 4 5 X3 3 2 4 5 Y Y1 5 6 2 14 Y2 5 3 5 7 Z Z1 7 1 1 6 Z2 7 3 2 10 Create a scheduling simulation for these threads on a system with two (2) processors using the First Come First Served (FCFS) algorithm. A thread may migrate from one processor to another if it returns from blocked waiting time and 1) the processor it was running on previously is occupied with other work; and 2) and the other processor is available to execute the thread. If both processors are available when a thread becomes unblocked, it will remain on the processor it was most recently running on. In this simulation, you will be managing a single ready queue that schedules all processes. When two processes arrive in the ready queue at…