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Simulation studies of a virtual memory, time-shared, demand paging operating system

J. Winograd, S. J. Morganstein, R. Herman
1971 Proceedings of the third symposium on Operating systems principles - SOSP '71  
SIM/61 is a large (3500 lines of Simscript code), highly detailed simulation model of a virtual memory, time-shared, demand paging operating system.  ...  The current model contains algorithms for interrupt analysis, task scheduling, I/O scheduling and demand paging. This paper reports the results of studies made using SIM/61.  ...  Acknowledgements The authors would like to acknowledge the continuing support of G. Oppenheimer of RCA, who supplied the original impetus and direction for the backing store study.  ... 
doi:10.1145/800212.806513 dblp:conf/sosp/WinogradMH71 fatcat:pm5354p7h5aypf6gako6rrnxoq

(2021) Volume 2, Issue 4 Cultural Implications of China Pakistan Economic Corridor (CPEC Authors: Dr. Unsa Jamshed Amar Jahangir Anbrin Khawaja Abstract: This study is an attempt to highlight the cultural implication of CPEC on Pak-China relations, how it will align two nations culturally, and what steps were taken by the governments of two states to bring the people closer. After the establishment of diplomatic relations between Pakistan and China, the cultural aspect of relations between the two states al ...

2021 Journal of Development and Social Sciences  
Inter-provincial water sharing issue in Pakistan is a classic example of upstream-downstream rivalry which has been traced back from the pre-partition history of Pakistan.  ...  The burgeoning conflict over the water sharing is now a global phenomenon.  ...  Islam, personal communication, August 2, 2021) because in a transboundary river system like Pakistan, the flows are interdependent and as the population is expanding water demand is also increasing which  ... 
doi:10.47205/jdss.2021(2-iv)74 fatcat:o63evbbvmfghhfbrzetuczvedq

R69-27 Demand Paging in Perspective

E.G. Coffman
1969 IEEE transactions on computers  
Obviously any large portions of contiguous dead data (in virtual memory) present little or no problem in a page-on-demand system.  ...  The experiment reported in this paper is a study directed at measuring and understanding program behavior in a paging environment.  ...  Obviously any large portions of contiguous dead data (in virtual memory) present little or no problem in a page-on-demand system.  ... 
doi:10.1109/t-c.1969.222788 fatcat:edyg2yllijadxawsqqxsso6ziu

Adaptive caching for demand prepaging

Scott F. Kaplan, Lyle A. McGeoch, Megan F. Cole
2002 Proceedings of the third international symposium on Memory management - ISMM '02  
Demand prepaging was long ago proposed as a method for taking advantage of high disk bandwidths and avoiding long disk latencies by fetching, at each page fault, not only the demanded page but also other  ...  In some situations, demand prepaging cannot provide benefit, as any allocation to prepaged pages will increase page faults, while in other situations, a good choice of allocation will yield a substantial  ...  The need for a new evaluation. There have been a number of studies of demand prepaging.  ... 
doi:10.1145/512429.512445 fatcat:lijbrx2kgbggfpv5ytfqjcw3ce

Adaptive caching for demand prepaging

Scott F. Kaplan, Lyle A. McGeoch, Megan F. Cole
2002 Proceedings of the third international symposium on Memory management - ISMM '02  
Demand prepaging was long ago proposed as a method for taking advantage of high disk bandwidths and avoiding long disk latencies by fetching, at each page fault, not only the demanded page but also other  ...  In some situations, demand prepaging cannot provide benefit, as any allocation to prepaged pages will increase page faults, while in other situations, a good choice of allocation will yield a substantial  ...  The need for a new evaluation. There have been a number of studies of demand prepaging.  ... 
doi:10.1145/512444.512445 fatcat:2ki3sk4qs5hezmkzedyq4s4poa

Adaptive caching for demand prepaging

Scott F. Kaplan, Lyle A. McGeoch, Megan F. Cole
2003 SIGPLAN notices  
Demand prepaging was long ago proposed as a method for taking advantage of high disk bandwidths and avoiding long disk latencies by fetching, at each page fault, not only the demanded page but also other  ...  In some situations, demand prepaging cannot provide benefit, as any allocation to prepaged pages will increase page faults, while in other situations, a good choice of allocation will yield a substantial  ...  The need for a new evaluation. There have been a number of studies of demand prepaging.  ... 
doi:10.1145/773039.512445 fatcat:syixn7blsjaelggb3ucjyquzrq

Dynamic cluster resource allocations for jobs with known and unknown memory demands

Li Xiao, Songqing Chen, Xiaodong Zhang
2002 IEEE Transactions on Parallel and Distributed Systems  
We study two types of application workloads: 1) Memory demands are known in advance or are predictable and 2) memory demands are unknown and dynamically changed during execution.  ...  AbstractÐThe cluster system we consider for load sharing is a compute farm which is a pool of networked server nodes providing high-performance computing for CPU-intensive, memory-intensive, and I/O active  ...  The authors would like to thank Phil Kearns' help for the kernel instrumentation on Linux systems and his suggestions.  ... 
doi:10.1109/71.993204 fatcat:pzz2er6fdjgfheut4ddrst6xd4

An analysis of prepaging

K. S. Trivedi
1979 Computing  
The relative space-time product is presented as a measure of the effectiveness of a prepaging scheme. The effect of prepaging on system throughput is studied using a cyclic queuing model.  ...  Zusammenfassung An Analysis of Prepaging. Prepaging is advocated as a technique to reduce the excessive page traffic due to the changes in the phases of execution of a program.  ...  FDPA keeps a list of pages to be prefetched and at the time of the next page fault, say for page x, it not only fetches x but also fetches as many pages from the list as the memory space permits.  ... 
doi:10.1007/bf02243562 fatcat:bdnumxqjkrffha7e356h5hr3ry

Visual Sampling of In-Vehicle Text Messages: Effects of Number of Lines, Page Presentation, and Message Control

Joshua Hoffman, John Lee, Daniel McGehee, Mashala Macias, Andrew Gellatly
2005 Transportation Research Record  
page -by-page) on drivers' visual sampling behavior of text messages.  ...  This study used a medium-fidelity driving simulator to evaluate the effect of scroll control (manual, automatic), the number of lines displayed (one, two, four), and scrolling strategy (line -by-line,  ...  Another study reported a series of 1 -1.5 second glances to the in-vehicle display/control system to complete a range of in-vehicle tasks (6) .  ... 
doi:10.3141/1937-04 fatcat:6n3zn5xaefao5oqgwwb4tyrrki

A study of performance impact of memory controller features in multi-processor server environment

Chitra Natarajan, Bruce Christenson, Fayé Briggs
2004 Proceedings of the 3rd workshop on Memory performance issues in conjunction with the 31st international symposium on computer architecture - WMPI '04  
For instance, one of our studies shows that in a system with an in-order shared bus connecting the CPUs and memory controller, an intelligent read-to-write switching memory controller feature can provide  ...  This paper presents a study of the performance impact of several memory controller features in multi-processor (MP) server environments that use a DDR/DDR2 based memory subsystem.  ...  Sundaram Chinthamani also provided the data for some of the workload demand curves illustrated in a few charts presented in this paper.  ... 
doi:10.1145/1054943.1054954 dblp:conf/wmpi/NatarajanCB04 fatcat:uzjl5ujkdzhy7hzztiwbbrok2e

Accounting framework based electricity energy planning software involving renewable energy

Yusak Tanoto, Ekadewi A. Handoyo, Raymond Sutjiadi
2015 2015 International Conference on Control, Electronics, Renewable Energy and Communications (ICCEREC)  
Some software are used to study and model the relation between supply and demand within a spesific energy system boundary.  ...  The framework is calculating outcomes of decision for each supply-demand scenario. Hence, the flow of energy in a system is taken into account based on simple engineering relationship.  ... 
doi:10.1109/iccerec.2015.7337025 fatcat:qksa5ij3kbfrzfhdswjeartbzm

Visual Sampling of In-Vehicle Text Messages

Joshua D. Hoffman, John D. Lee, Daniel V. McGehee, Mashala Macias, Andrew W. Gellatly
2005 Transportation Research Record  
page -by-page) on drivers' visual sampling behavior of text messages.  ...  This study used a medium-fidelity driving simulator to evaluate the effect of scroll control (manual, automatic), the number of lines displayed (one, two, four), and scrolling strategy (line -by-line,  ...  Another study reported a series of 1 -1.5 second glances to the in-vehicle display/control system to complete a range of in-vehicle tasks (6) .  ... 
doi:10.1177/0361198105193700104 fatcat:m4uqhijqb5ftzoh7trpr44hdra

Page 14 of Computer Performance Vol. 3, Issue 1 [page]

1982 Computer Performance  
The file 1/O subsystem of the present study was never used as heavily as the respective paging 1/O subsystem.  ...  The second is the use of real-time control of job page-fault rates so as to minimize paging traffic and reduce system overhead; this affects the response time, which was mostly dependent on these two overhead  ... 

Generalized Load Sharing for Homogeneous Networks of Distributed Environment

A. Satheesh, K. Vimal Kumar, S. Krishnaveni
2008 Journal of Computer Systems, Networks, and Communications  
Regarding remote execution and preemptive migration strategies, our experiments indicate that a strategy selection in load sharing is dependent on the amount of memory demand of jobs, remote execution  ...  Our objective is to reduce the number of page faults caused by unbalanced memory allocations for jobs among distributed nodes, so that overall performance of a distributed system can be significantly improved  ...  This means that the service demand of a job on each computing node is the same, and service demands on disks are different, because the same job may cause more page faults on a node with a small memory  ... 
doi:10.1155/2008/294106 fatcat:pb4ykqfmq5eyhcp37wht6a3eue

Demand paging in perspective

C. J. Kuehner, B. Randell
1968 Proceedings of the December 9-11, 1968, fall joint computer conference, part II on - AFIPS '68 (Fall, part II)  
A. Belady, M. Lehman and F. Zurcher for numerous discussions and suggestions which aided in the preparation of this paper.  ...  ()r Comm ACM 115196R pp ~{2;{-3~:) 12 LWCOMEAU A study 0.1 the effect (~f user program optimization in a paging system ACM Symposium on Operating System Principles Gatlinhurg Tennessee Oct 1-41967 1~ A  ...  On the subject of paging, it is clear that one of the most obvious difficulties that arise in the design of a paging system is that of choosing a page size.  ... 
doi:10.1145/1476706.1476720 dblp:conf/afips/KuehnerR68 fatcat:jkjy5ines5ckfhkk4ywbad4wsm
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