Describe the steps a system takes to handle a page fault. How do page faults affect the overall process completion time? Do you believe thrashing would have a significant effect on the process completion time? Explain.
Describe the steps a system takes to handle a page fault. How do page faults affect...
Transient overvoltages due to restriking or intermittent ground faults can and do develop substantial overvoltages on ungrounded electrical systems with respect to ground. There have been many documented cases within industry where multiple equipment failures (e.g.-motors) over an entire 480 V system have occurred while trying to find and locate a ground fault. Measured line-to-ground voltages of 1200 V or higher in these instances have been reported. In all instances, the cause has been traced to a low-level intermittent arcing...
3. Consider a paging system with the page table in memory. A. If a memory reference takes 100 nanoseconds, how long does a paged memory reference take? B. If we add TLBs, and 75 percent of all page-table references are found in the TLBs, what is the effective memory reference time? (Assume that finding a page-table entry for the TLBs takes 20 nanoseconds.) C. It takes 750 milliseconds to service a page fault. The page fault rate is .001. What...
Number Name 3. Assuming no page fault on a page table access, what is the processor memory access time for the system depicted in the above figure, for a physical memory with 50ns read/write times? 4. Now, assume that the memory system has a translation look-aside buffer (TLB). The TLB requires 10 ns to determine a hit or mess. The physical memory system has an access time of 50ns. You may assume that page fault rate for the application is...
Suppose a machine does not use a multi-level page table. Suppose further, that the system uses a 54-bit virtual address and a 30-bit physical address. If the page size is 16K, how many entries should you have in the page table? You may express the answer as a power of 2. (1) Is the decision to have a single level page table a reasonable one? Explain (2) If you are to use the inverted page table in this system, what...
Consider a demand-paging system with a paging disk that has an average access and transfer time of 20 milliseconds. Addresses are translated through a page table in main memory, with an access time of 1 microsecond per memory access. Thus, each memory reference through the page table takes two accesses. To improve this time, we have added an associative memory that reduces access time to one memory reference, if the page-table entry is in the associative memory. Assume that 80...
In the study of algorithms, computational complexity is used to describe the overall efficiency of a problem solution relative to how long it takes to compute a solution. Independent of algorithmic complexity, how much do you think the architectural design and structure of a system, particularly a large-scale software-intensive system, affect its performance? Explain your rationale.
The digestive system plays a critical role in how our body takes in and processes food. Organs of the digestive system are usually referred to as "your gut". It's also the beginning of the process in which our body receives nourishment. Understanding this process can be helpful when communicating with patients or when analyzing charts for assigning the correct medical codes. If you had to explain the point at which the digestive process actually begins and one related disease or...
4.6 When silicon chips are fabricated, defects in materials (eg, silicon) and manufacturing errors can result in defective circuits. A very common defect is for one wire to affect the signal in another. This is called a cross-talk fault. A special class of cross-talk faults is when a signal is connected to a wire that has a constant logical value (eg, a power supply wire). In this case, we have a stuck-at-0 or a stuck- at-l fault, and the affected...
What do you believe is the culture of dying in the United States? What do you believe has led to this culture? How have changed in elder care affect the culture of dying in the United States in the last few decades? How do different religious or spiritual sectors in our society engage in the grieving process? Do you think that where an older adult dies affects how that death is viewed orvthe grieving process? Explain?
The heating of the system is an irreversible process. Briefly explain why, and describe how you would need to modify the heating process to make it reversible instead.