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Scheduling and IPC mechanisms for continuous media

Ramesh Govindan, David P. Anderson
1991 Proceedings of the thirteenth ACM symposium on Operating systems principles - SOSP '91  
On existing Unix SVR4 systems, the model we described could be integrated as a new Multimedia Scheduling Class, mapped into the global priority vector of the system.  ...  In an adaptive multimedia presentation application, continuous media streams and discrete data are treated simultaneously, and there exist some media scaling mechanisms to adapt presentation to system  ...  For video streams, a common scaling mechanism consists of an image rate modification (frame rejection to allow for more decoding time).  ... 
doi:10.1145/121132.121147 dblp:conf/sosp/GovindanA91 fatcat:cvgwuxgtn5hrzhmpenj47krn2i

Scheduling and IPC mechanisms for continuous media

Ramesh Govindan, David P. Anderson
1991 ACM SIGOPS Operating Systems Review  
On existing Unix SVR4 systems, the model we described could be integrated as a new Multimedia Scheduling Class, mapped into the global priority vector of the system.  ...  In an adaptive multimedia presentation application, continuous media streams and discrete data are treated simultaneously, and there exist some media scaling mechanisms to adapt presentation to system  ...  For video streams, a common scaling mechanism consists of an image rate modification (frame rejection to allow for more decoding time).  ... 
doi:10.1145/121133.121147 fatcat:6as4tedz2zgbvgrwcdv2tjozoy

Inter process communication and prioritization to enable desktop advertisement mechanism

Shubham Gupta, Varun Mittal, Sagar Kumar
2009 2009 IEEE Student Conference on Research and Development (SCOReD)  
This solution will help both advertisers and users.  ...  We can tie up with third party software vendors (like office suites, media players, web browsers, chat clients) so that our software can be bundled along with their applications.  ...  Prioritization and scheduling of tasks Using IPC to get information and data continuously from other processes might degrade the performance of the system and the applications.  ... 
doi:10.1109/scored.2009.5443260 fatcat:l3jgf6zzzrdv3p5llebkrlrtgi

A Study on Stagefright Attack

Arepalli Venkata Sai Krishna
2017 International Journal for Research in Applied Science and Engineering Technology  
Stagefright is part of a larger group of code called Media server, which has issues of its own. Apart from running media, it also has access to Bluetooth, camera, and others.  ...  In android Media files are processed without known of user control. There are many possible ways to send yourself a mediafile.  ...  For this reason, AwesomePlayer employs a timed queuing mechanism (TimedEventQueue) that continuously schedules rendering of buffered video segments.  ... 
doi:10.22214/ijraset.2017.9100 fatcat:yrnbgmcdnbdmzn33q37rfpf35e

Confirming the Efficacy of an Adaptive Component to Family-Based Treatment for Adolescent Anorexia Nervosa: Study Protocol for a Randomized Controlled Trial

Alexa L'Insalata, Claire Trainor, Cara Bohon, Sangeeta Mondal, Daniel Le Grange, James Lock
2020 Frontiers in Psychiatry  
Randomized participants will either continue standard FBT or receive the three sessions of IPC and then continue FBT as usual. Both arms include up to 18 sessions over the course of 9 months.  ...  This manuscript describes a study protocol to examine whether adding IPC to FBT improves outcomes in early non-responders and confirm whether change in parental self-efficacy is the mechanism by which  ...  If participants meet initial criteria via phone screen, they will be asked to schedule and attend a baseline assessment if they wish to continue with the study.  ... 
doi:10.3389/fpsyt.2020.00041 pmid:32116856 pmcid:PMC7028765 fatcat:2enaugkpundcbdoullocwwenfq

Architectural Support for Network Applications on Simultaneous MultiThreading Processors

Kyueun Yi, Jean-Luc Gaudiot
2007 2007 IEEE International Parallel and Distributed Processing Symposium  
As network applications become increasingly sophisticated and internet traffic is getting heavier, future network processors must continue processing computation-intensive network applications at line  ...  We demonstrate that, when executed as independent threads, applications chosen from different network layers show an improved IPC and cache behavior when compared with the situation where the program executed  ...  Robatmili et al. proposed a network processor simulator based on SMT with hardware queues for scheduling process threads and some loadbalancing mechanisms at the level of process threads [23] .  ... 
doi:10.1109/ipdps.2007.370236 dblp:conf/ipps/YiG07 fatcat:4vropjc5w5bt3gcczn7c5dbqkm

Predictable performance in SMT processors: synergy between the OS and SMTs

F.J. Cazorla, P.M.W. Knijnenburg, R. Sakellariou, E. Fernandez, A. Ramirez, M. Valero
2006 IEEE transactions on computers  
This presents a problem for general purpose systems, where the OS job scheduler cannot enforce priorities, and also for embedded systems, where it would be difficult to guarantee worst-case execution times  ...  In fact, our mechanism, in addition to fulfilling OS requirements, achieves 90 precent of the throughput of one of the best currently known fetch policies for SMTs.  ...  Thus, a resource conscious scheduler, by using our resource allocation mechanism, can perform better than a traditional OS job scheduler using a fetch policy as a single solution for all cases.  ... 
doi:10.1109/tc.2006.108 fatcat:dfdqiknm4bfwfkvczxn5dw5zxy

Improving Latency Tolerance of Network Processors Through Simultaneous Multithreading [chapter]

Bo Liang, Hong An, Fang Lu, Rui Guo
2005 Lecture Notes in Computer Science  
In this paper, we analyze SMT's short latency tolerance potential when used in out-of-order and dynamic scheduling PE cores.  ...  Most of them are optimized for throughputs mostly in data-plane.  ...  But in the following part of this paper we will continue to use the term "single issue SMT" for the sake of consistency.  ... 
doi:10.1007/11573937_9 fatcat:arqg3qyuibe45hfp4iajjz6z3y

Mixed-mode multicore reliability

Philip M. Wells, Koushik Chakraborty, Gurindar S. Sohi
2009 Proceeding of the 14th international conference on Architectural support for programming languages and operating systems - ASPLOS '09  
to execute additional independent software threads for a performance application complicates the scheduling of computation to cores.  ...  This reliability, however, comes at a high price in terms of per-thread IPC and overall system throughput.  ...  Acknowledgments We wish to thank Matthew Allen, Greg Wright, and Jared Smolens for helpful discussions and comments.  ... 
doi:10.1145/1508244.1508265 dblp:conf/asplos/WellsCS09 fatcat:66lqqtnienh2xg7qqzzf5hknim

Mixed-mode multicore reliability

Philip M. Wells, Koushik Chakraborty, Gurindar S. Sohi
2009 SIGARCH Computer Architecture News  
to execute additional independent software threads for a performance application complicates the scheduling of computation to cores.  ...  This reliability, however, comes at a high price in terms of per-thread IPC and overall system throughput.  ...  Acknowledgments We wish to thank Matthew Allen, Greg Wright, and Jared Smolens for helpful discussions and comments.  ... 
doi:10.1145/2528521.1508265 fatcat:qwadyztlzfhlphvaebncwsedmy

Mixed-mode multicore reliability

Philip M. Wells, Koushik Chakraborty, Gurindar S. Sohi
2009 SIGPLAN notices  
to execute additional independent software threads for a performance application complicates the scheduling of computation to cores.  ...  This reliability, however, comes at a high price in terms of per-thread IPC and overall system throughput.  ...  Acknowledgments We wish to thank Matthew Allen, Greg Wright, and Jared Smolens for helpful discussions and comments.  ... 
doi:10.1145/1508284.1508265 fatcat:5hfaf5eotnbp3eh7rbcl5eqeau

Runahead execution: an effective alternative to large instruction windows

O. Mutlu, J. Stark, C. Wilkerson, Y.N. Patt
2003 IEEE Micro  
As processor and system designers continue to push for shorter cycle times and larger memory modules, and memory designers contin-ue to push for higher bandwidth and density, main-memory latencies will  ...  Figure 3 . 3 IPC improvement of runahead execution for 512-Kbyte, 1-Mbyte, and 4-Mbyte L2 caches.  ...  His research interests include branch prediction, dynamic instruction scheduling, and aggressive speculation.  ... 
doi:10.1109/mm.2003.1261383 fatcat:ygjuu3cywzgttoxftmvj3oq764

Use of "Social Media"—an Option for Spreading Awareness in Infection Prevention

Jayaprakasam Madhumathi, Rina Sinha, Balaji Veeraraghavan, Kamini Walia
2021 Current Treatment Options in Infectious Diseases  
The exponential increase in the use of social media (SM) has made it a powerful tool for creating awareness, education, training and community engagement on IPC.  ...  There is a need for enhanced adoption of infection prevention and control (IPC) practices in both healthcare settings and the entire community, more so during pandemics.  ...  ) To provide a mechanism for online consultations.  ... 
doi:10.1007/s40506-020-00244-3 pmid:33519303 pmcid:PMC7826144 fatcat:dcurhrebxbaploju3rqmxikgyi

Improving continuous-media playback performance with in-kernel data paths

Fall, Pasquale
1994 Proceedings of IEEE International Conference on Multimedia Computing and Systems MMCS-94  
Continuous media playback suffers when a station's operating system offers insufficient 1/0 throughput.  ...  Our splice mechanism supports a peer-to-peer model of 1/0 where a requesting application can associate a data source with its corresponding data sink, allowing for system optimizations in the data path  ...  We compared the throughput performance of a receiving continuous media program using the splice mechanism to move data between the network and display device as compared against an equivalent userlevel  ... 
doi:10.1109/mmcs.1994.292440 dblp:conf/icmcs/FallP94 fatcat:rha2z6gefrdt5aedez3l6zq3je

Operating systems for the multimedia office of the future [chapter]

J. Dospisil, E. Kendall, T. Polgar
1996 Information Systems and Technology in the International Office of the Future  
The objective of this paper is to survey the trends in support for continuous media processing in distributed environments.  ...  In particular, we look at the emerging abstractions in operating systems to ensure predictable response times for delivering continuous media at the desktop.  ...  Multimedia applications need sophisticated support for presentation scheduling (Hoepner (1991» as well as for maintaining real-time processing of continuous media (Coulson (1992». 2.1 Continuous media  ... 
doi:10.1007/978-0-387-35085-1_9 fatcat:4mdmti2jmvdxfblvq4lxyinf7y
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