PPT-Paging

Virtual Memory Segmentation Basic early approach Paging Modern approach Advantages Easy to allocate physical memory Easy to page outswap chunks of memory Disadvantages Overhead added to each memory reference. We have seen how CPU can be shared by a set of processes. Improve system performance . Process management. Need to keep several process in memory. Share memory. Learn various techniques to manage memory. 1. 9. Linking and Sharing. 9.1 Single-Copy Sharing . Why Share . Requirements for Sharing. Linking and Sharing . 9.2 Sharing in Systems without Virtual Memory. 9.3 Sharing in Paging Systems. Sharing of Data. Chief Residents. ePageMD. ePageMD. will be back online on . 8/22/13 at 8AM. What is . ePageMD. ?. ePageMD. is a page forwarding system that allows:. Multiple people to sign on to the same pager. You can cover multiple pagers at once. -Bhavtosh . Rath. Multi – user system: Log files needed for concurrency control.. Single – user system: An alternative !. Shadow Paging.. Rollback/Abort - Database is returned . to its state prior to the transaction that was executing when the . Mark . Russinovich. Technical Fellow. Windows Azure. (created jointly with Dave Solomon). WCL406. Goals. Deep dive on:. Process virtual and physical memory usage. Operating system virtual and physical memory usage. Instructor: Junfeng Yang Outline  Memory management goals  Segmentation  Paging  TLB 1 Multiprogramming  Simple uniprogramming with a single segment per proce Many-Antenna MU-MIMO. Clayton Shepard . Abeer. . Javed. Lin . Zhong. What is the control channel?. Anything that isn’t data. Control Channel Functions. Time-frequency synchronization. Association. Alejandro . López. -Ortiz , . Alejandro Salinger. University . of Waterloo. Outline. Paging . Paging . with cache usage. Interval Scheduling. Online algorithms. Simulations. Conclusions. 2. Paging. 3. Mark . Russinovich. Technical Fellow. Windows Azure. (created jointly with Dave Solomon). WCL406. Goals. Deep dive on:. Process virtual and physical memory usage. Operating system virtual and physical memory usage. Lecture . 29. Memory. (6). Review. P2 . assigned. Exam 2 next . Friday. Demand paging. Page faults. TLB intro. Advantage of TLB. When does TLB offer an advantage. When most of the page numbers the process refers to is in the TLB. . Chapter 7. 2. Roadmap. M. emory management . Objectives. . Requirements. Simple memory management. . Memory partitioning. . Fixed partitioning. . Dynamic partitioning. . Address translation. Members can receive emergency calls on cell phone using:. Voice Notification – also works with landlines. Android/iPhone App that makes your phone operate similar to a voice pager with stored voice. D. Foo . Kune. , J. . Koelndorfer. , N. Hopper, Y. . Kim . Location Privacy. News. Nov 2011: Carrier IQ . Oct 2011: HTC Android phone location leakage. April 2011: iPhone and Android location information. in progress. In emergency. , contact, Paul Bierman. 802 863 3609 (home) 802 238 6826 (cell phone) . 802.350.9630 (pager) . 9993100@paging.contactbeep.com (pager). pbierman@uvm.edu. (email).