Determining which page frames are least-recently-used

Assignment Help Basic Computer Science

Reference no: EM131212213

In the S/370 architecture, a storage key is a control field associated with each page sized frame of real memory. Two bits of that key that are relevant for page replacement are the reference bit and the change bit. The reference bit is set to 1 when any address within the frame is accessed for read or write, and is set to 0 when a new page is loaded into the frame. The change bit is set to 1 when a write operation is performed on any location within the frame. Suggest an approach for determining which page frames are least-recently-used, making use of only the reference bit.

Reference no: EM131212213

Questions Cloud

Affect an existing deferred tax liability : Suppose a tax reform bill is enacted that causes the corporate tax rate to change from 34% to 36%. How would this affect an existing deferred tax liability? How would the change be reflected in income?

Explain how the tlb hit rate affects the emat : Consider a system with memory mapping done on a page basis and using a single level page table. Assume that the necessary page table is always in memory.

Absolute value of th edifference between num : Write a return method named fromTen that returns an integer. fromTen takes in one parameter oftype integer named num. fromTen will return the absolute value of th edifference between num and 10. Do not write a Class, just a Method.

Exchange for services performed for the partnership : Which of the following would be currently taxable as ordinary income to the service partner if received in exchange for services performed for the partnership?

Determining which page frames are least-recently-used : Suggest an approach for determining which page frames are least-recently-used, making use of only the reference bit.

Techical project paper-information systems security : Determine the impact of at least 5 potential logical threats that require attention? Detail the security controls ( ie, administrative, preventative, detective and corrective) that the pharmacy could implemented to protect from the 5 selected logi..

Key concept in information systems : Use the Internet or the Strayer Library to research one (1) concept in information systems that you have studied in this course. You may select a topic of your choice or you may use one (1) of the following:

Find the volume of the solid formed when the shaded region : Find the volume of the solid formed when the shaded region is revolved about the indicated axis. Find the volume of the solid generated by revolving the region bounded by y = x (1 +x3)1/4 over 0 ≤ x ≤ 1 about the x-axis.

Improve the behavior of the algorithm : .These differences strongly indicate that a mechanism that would dynamically adjust the value of Q during the lifetime of a process would improve the behavior of the algorithm. Suggest a simple mechanism for this purpose.

User Account

All Pages