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SNS RF system performance and operation

Mark Champion
2007 2007 IEEE Particle Accelerator Conference (PAC)  
Various modifications and upgrades have been made or are in progress to enhance system reliability and performance.  ...  The RF systems operate reliably and support production of a high-quality low-loss proton beam.  ...  ACKNOWLEDGEMENTS The author acknowledges and thanks the members of the SNS RF Group and Research Accelerator Division for their efforts in making a success of the SNS RF systems.  ... 
doi:10.1109/pac.2007.4440111 fatcat:cyf7kvgpezg6taahbu3ahqbzy4

Operational performance of siphonic roof drainage systems

Scott Arthur, Grant Wright, John Swaffield
2005 Building and Environment  
Conclusions are drawn regarding the performance characteristics of multi-outlet siphonic roof drainage systems, and plans for future work are outlined. r  ...  In that time, only limited data have been published relating to their performance, and what does exist relates to laboratory test facilities.  ...  A field study were required as there were very little data in the public domain that gave a genuine overview of how siphonic systems performed under normal operating conditions, i.e. how systems drain  ... 
doi:10.1016/j.buildenv.2004.08.015 fatcat:obd3qk6zpnhy3fox2mybwnhzyy

Freeway Performance Measurement System: Operational Analysis Tool

Tom Choe, Alexander Skabardonis, Pravin Varaiya
2002 Transportation Research Record  
PeMS is a freeway performance measurement system for all of California. It processes 2 GB/day of 30-second loop detector data in real time to produce useful information.  ...  Managers at any time can have a uniform, and comprehensive assessment of freeway performance.  ...  PeMS (Performance Measurement System) is such a system.  ... 
doi:10.3141/1811-08 fatcat:cko6wb75w5c4hlfmtui4ofrqxe

High-performance operating system controlled memory compression

Lei Yang, H. Lekatsas, R.P. Dick
2006 Proceedings - Design Automation Conference  
This article describes a new software-based on-line memory compression algorithm for embedded systems and presents a method of adaptively managing the uncompressed and compressed memory regions during  ...  The primary goal of this work is to save memory in disk-less embedded systems, resulting in greater functionality, smaller size, and lower overall cost, without modifying applications or hardware.  ...  Overall performance of the improved CRAMES Embedded system with high-performance on-line memory compression can be designed with less RAM and still support desired applications.  ... 
doi:10.1109/dac.2006.229311 fatcat:stgnpmzuprhodlnd7aze3hmaw4

Performance Evaluation of Recent Windows Operating Systems

Bojan Cukic, Goran Martinovic, Josip Balen
2012 Journal of universal computer science (Online)  
The primary goal of most OSs (Operating Systems) is the efficient use of computer systems software and hardware resources.  ...  Furthermore, on network computer system Windows Vista and Windows 7 show network performance improvements mostly for the traffic with medium-sized packets.  ...  This new behavior of an asynchronous I/O operation should enhance the overall application and system performance.  ... 
doi:10.3217/jucs-018-02-0218 dblp:journals/jucs/MartinovicBC12 fatcat:5ooo6ks2wjf3bdv62jxyqagtvq

High-performance operating system controlled memory compression

Lei Yang, Haris Lekatsas, Robert P. Dick
2006 Proceedings of the 43rd annual conference on Design automation - DAC '06  
This article describes a new software-based on-line memory compression algorithm for embedded systems and presents a method of adaptively managing the uncompressed and compressed memory regions during  ...  The primary goal of this work is to save memory in disk-less embedded systems, resulting in greater functionality, smaller size, and lower overall cost, without modifying applications or hardware.  ...  Overall performance of the improved CRAMES Embedded system with high-performance on-line memory compression can be designed with less RAM and still support desired applications.  ... 
doi:10.1145/1146909.1147086 dblp:conf/dac/YangLD06 fatcat:i75swpbar5cbpdiaoceeb7j76m

The impact of operating system structure on memory system performance

J. Bradley Chen, Brian N. Bershad
1993 ACM SIGOPS Operating Systems Review  
has on system performance.  ...  In this paper we evaluate the memory system behavior of two distinctly different implementations of the UNIX operating system: DEC's Ultrix, a monolithic system, and Mach 3.0 with CMU's UNIX server, a  ...  Block operations Operating systems perform block memory operations to transfer data between 1/0 devices and memory, and to copy data between address spaces, Table 4 -5: Block memory operations and memory  ... 
doi:10.1145/173668.168629 fatcat:m77d5o3uszcind2gvyxunqfxpa

Performance Analysis of Real Time Operating System with General Purpose Operating System for Mobile Robotic System

Akhilesh Murikipudi, V. Prakash, T. Vigneswaran
2015 Indian Journal of Science and Technology  
Background/Objectives: The objective of the paper is to analyze the General Purpose Operation System (GPOS) performance with Real Time Operating System(RTOS) using a mobile robot as a real time application  ...  Soft real time systems require performance assurances from the operating system.  ...  This approach also improves real time interrupt latencies of hybrid operating system with two level hardware interrupt. Real time operating system comparison by Rafael V.  ... 
doi:10.17485/ijst/2015/v8i19/77017 fatcat:pihcnel52zb43mnrfrys5gok4i

Thermoplastic high performance cable insulation systems for flexible system operation

A. S. Vaughan, C. D. Green, I. L. Hosier, G. C. Stevens, A. Pye, J. L. Thomas, S. J. Sutton, T. Geussens
2015 2015 IEEE Electrical Insulation Conference (EIC)  
operational flexibility.  ...  First, a blend system based upon high density (HDPE) and low density polyethylene (LDPE) is considered, before comparable principles are applied to combinations of polypropylene grades.  ...  From this, it is evident that all the systems considered here are comparable in terms of their low temperature flexibility and, indeed, the low temperature performance of the PP blend is somewhat better  ... 
doi:10.1109/icacact.2014.7223570 fatcat:mmavwdunxjeo3owtpc6w4ymyjm

The impact of operating system structure on memory system performance

J. Bradley Chen, Brian N. Bershad
1993 Proceedings of the fourteenth ACM symposium on Operating systems principles - SOSP '93  
has on system performance.  ...  In this paper we evaluate the memory system behavior of two distinctly different implementations of the UNIX operating system: DEC's Ultrix, a monolithic system, and Mach 3.0 with CMU's UNIX server, a  ...  Block operations Operating systems perform block memory operations to transfer data between 1/0 devices and memory, and to copy data between address spaces, Table 4 -5: Block memory operations and memory  ... 
doi:10.1145/168619.168629 dblp:conf/sosp/ChenB93 fatcat:xttskcvl6fdxhd5yii7l2lsr6e

Operating Systems: The Problems of Performance and Reliability [chapter]

B. Randell
1985 Reliable Computer Systems  
The problems of achieving satisfactory levels of system performance and reliability are amongst the most difficult that operating system designers and implementors have to face.  ...  This is particularly the case with generic operating systems, i.e., systems intended for use in many different versions, in a wide variety of different environments.  ...  performance and reliability that face the operating system designer.  ... 
doi:10.1007/978-3-642-82470-8_5 fatcat:x2n2muubnncibj7c3pm27kufci

Experimental Evaluation of Desktop Operating Systems Networking Performance

Krešimir Vdovjak, Josip Balen, Krešimir Nenadić
2020 International journal of electrical and computer engineering systems  
Performance evaluation results showed that a newer versions of an operating system bring certain networking performance improvements but by sacrificing other performances.  ...  Besides the complex network infrastructure that can influence performance, the bottleneck can also be caused by insufficient hardware, operating system and software resources on clients' machines.  ...  By comparison of the same performance measurement results on different operating systems, it can be determined which operating system provides the best networking performance in default configuration.  ... 
doi:10.32985/ijeces.11.2.2 fatcat:ij2u6tkrnrgsrhmgxjjz33yy3y

Mixed - mode Operating System for Real - time Performance

Hasan M. M., Sultana S., Foo C.K.
2017 ASEAN Journal on Science and Technology for Development  
(GUI)operating system which is typicallynon-real-time.  ...  This mixed-mode operating system comprising of a real-time portion and a non-real-time portion was studied and implemented to identify the feasibilities and performances in practical applications (in the  ...  This research aims at combining these two systems to form a "mixed-mode Operating system".  ... 
doi:10.29037/ajstd.178 fatcat:dxmb5sbkafh7dmhuu3fg4ymire

The measured performance of personal computer operating systems

J. Bradley Chen, Yasuhiro Endo, Kee Chan, David Mazières, Antonio Dias, Margo Seltzer, Michael D. Smith
1996 ACM Transactions on Computer Systems  
This paper presents a comparative study of the performance of three operating systems that run on the personal computer architecture derived from the IBM-PC, The operating systems, Windows for Workgroups  ...  the systems), overall performance is sometimes determined by the functionality provided by specific subsystems, such as the graphics subsystem or the file system buffer cache.  ...  Our memory access test shows that the operating system can affect application performance in ways that have little to do with the latency of operating system activity during program execution.  ... 
doi:10.1145/225535.225536 fatcat:bgjozdmzp5hbhgn3rqnj4selyu

Operational Performance of an AnaerobicAnoxic-Aerobic Treatment System

Andre Luis Calado Araujo, Danilo Luiz de Magalhães Ferraz, Paulo Eduardo Vieira Cunha, Cícero Fernandes Neto, Fernando José Araújo da Silva
2017 Fronteiras: Journal of Social, Technological and Environmental Science  
An anaerobic (UASB) – hybrid aerobic (suspended and attached growth activated sludge) wastewater treatment system was evaluated on the removal of organic matter, solids and nitrogen following its pre-operational  ...  Operational Performance of an Anaerobic-Anoxic-Aerobic Treatment System Andre Luis Calado Araujo; Danillo Luiz de Magalhães Ferraz; Paulo Eduardo Vieira Cunha Cícero Fernandes Neto; Fernando José Araújo  ...  Operational Performance of an Anaerobic-Anoxic-Aerobic Treatment System Andre Luis Calado Araujo; Danillo Luiz de Magalhães Ferraz; Paulo Eduardo Vieira Cunha Cícero Fernandes Neto; Fernando José Araújo  ... 
doi:10.21664/2238-8869.2017v6i3.p247-263 fatcat:uvlpefgsrrdltgvjvs5eslqvmq
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