Adaptive queue-based chunk scheduling software

What is the queue scheduling mechanism on an interface of. A system and method are herein disclosed for parallel streaming of stored media from multiple sources. Torque does not currently provide a simple mechanism for mapping queues to nodes. This implementation of a priorityqueue based scheduler maintains multiple queues, one for a set of priority levels. Brighter provides support for a distributed task queue. The authors first model the data scheduling problem to the maximum network flow problem where the schedule scheme is transformed to find an optimal supplierconsumer relationship assigment among peers with minimal server strees, and then present two maxflow based streaming data scheduling algorithms by combining the upload capacity of peers as. Examples of algorithms suitable for managing network traffic include. High performance lockfree priority queue cs technion. Optimal chunk scheduling algorithm based on taboo search.

Emerging active queue management aqm schemes such as pie and. However, it is still challenging to provide scalable streaming services over largescale internet environment beacause of the stringent quality of service requirements as well as the dynamic nature of p2p overlay network. Skipqueues have several notable advantages over prior heap and tree based. To enable efficient scheduling for both live and ondemand streaming, a more recent work was presented in 21, which theoretically formulated the scheduling problem, together with an approximation algorithm that. Iiis, tsinghua university abstractwe consider the problem of optimal matching with queues in dynamic systems and investigate the valueofinformation. Time slicing in this method each queue gets certain portion of cpu time and can use it to schedule its own processes. Proposed two queue based round robin scheduling algorithm in this proposed algorithm, roundrobin scheduling algorithm is chosen 9because it is one of the most popular scheduling algorithms. Adaptive queue based chunk scheduling for p2p live streaming, lecture notes in computer science, isbn. We introduce a queue based architecture for executing concurrent tasks in a real time enterprise system with high scale. With a massive increase in user device heterogeneity, an effective distribution of live video streaming that takes into consideration varying display sizes and processing capabilities of end user devices is becoming a necessity for. Production scheduling of batch processes based on adaptive. A priority queue which allows efficient priority update. Virtual queuebased marking schemes have been recently proposed for active queue management aqm in internet routers. Our totalqueue software allows you to set up a customer queue management process quickly and can be easily configured to your business needs.

A queue is an abstract data structure that contains a collection of elements. Figure 1 shows the model of queue based chunk scheduling. Citeseerx adaptive queuebased chunk scheduling for p2p. Queue is an abstract data structure, somewhat similar to stacks. Optimal bandwidth sharing in multiswarm multiparty p2p. Improve your level of customer service and organize their waiting experience. This cited by count includes citations to the following articles in scholar. The prototype implementing the queuebased scheduling is developed and used to evaluate the scheme in the real network. In a multiparty video conference, multiple users simultaneously distribute video streams to their receivers. In this paper, we present smoothcache, a peertopeer live video streaming p2pls system.

Thus, we propose a selfadaptive automatic container scheduling framework autoscale for cloud applications, which uses a feedbackbased approach to adjust physical resources by extending, contracting and migrating containers. In this paper, we propose aqcs, adaptive queuebased chunk scheduling, that can support the maximum streaming rate allowed by a p2p streaming system with small signaling overhead and short startup delay. As a default configuration to be used for testbeds and simulations, the chunk duration is equal to 2 seconds, the buffer size is equal to 30 seconds of playback, i. A scheduling discipline is preemptive if, once a process has been given the cpu rocesses that are logically runable to be temporarily suspended is called preemptive scheduling and it is contrast to the run to completion method. Earliest deadline first edf or least time to go is a dynamic scheduling algorithm used in realtime operating systems to place processes in a priority queue. In this paper, we propose aqcs, adaptive queuebased chunk scheduling, that can support the maximum streaming rate allowed by a p2p streaming.

In this paper, we propose aqcs, adaptive queue based chunk scheduling, that can support the maximum streaming rate allowed by a p2p streaming system with small signaling overhead and short startup. Two queue based round robin scheduling algorithm for cpu. Software engineering stack exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. Queue based job scheduling algorithm for cloud computing. User density sensitive p2p streaming in wireless mesh networks. Compute the fitness value of each individual of the population. Chunk was written to serve one purpose, and do it well. Adaptive queuebased chunk scheduling for p2p live streaming, lecture notes in computer science, isbn. This programming project is to simulate a few cpu scheduling policies discussed in the class. A queuebased chunk scheduling strategy was then developed for live video streaming, which achieves a nearoptimal streaming rate. The feature computation tasks are sorted in the queue based on each tasks estimated gpu vs cpucore speedup. In such systems, the operators match tasks and resources stored in queues, with the objective of. Dec 21, 2019 load balancing is a mechanism to distribute client requests among several service instances.

We consider the design of a scheduling policy for video streaming in a. This is achieved by segmenting the video into many small chunks and storing these chunks as separate files on the server. An adaptive virtual queue avq algorithm for active queue. It is a free software, licensed under the gnu gplv2 license, and is publicly available for research, development, and use.

In nameddata networking ndn and ndnlike architectures, load balancing becomes crucial when dynamic services are present, where relying solely on forwarding strategies can overload certain service instances while. A queue based chunk scheduling strategy was then developed for live video streaming, which achieves a nearoptimal streaming rate. The proposed scheduling algorithm uses a taboo search method to identify and prioritize chunk delivery in addition to taking bandwidth throughput and delivery ratio into consideration. This paper proposes an adaptive queuebased chunk scheduling method. Consequently, we require an approachthat adaptivelylearns a suitable scheduling policy by adapting the weights assigned to each queue or traf. Like stack, queue is a linear structure which follows a particular order in which the operations are performed. When a chunk takes more than chunk duration to be downloaded, the next chunk will be asked immediately after the previous chunk is entirely received. It is solidly based on many years of experience in writing highly parallel applications for hpc systems. The motivation behind the avq algorithm is to design an aqm scheme that results in a lowloss, lowdelay and high utilization operation at the link.

This is the opposite order of the stack collection. Peers only exchange information with the server and make local decisions. We denote the obtained pq design a chunkbased priority queue cbpq. Queue based architecture for executing concurrent tasks. Totalqueue software provides your business a complete customer queue management solution.

Adaptive video streaming for wireless networks with multiple users. In nameddata networking ndn and ndnlike architectures, load balancing becomes crucial when dynamic services are present, where relying solely on forwarding strategies can overload. The prototype implementing the queue based scheduling is developed and used to evaluate the scheme in the real network. Cpu scheduling deals with the problem of deciding which of the. A minimum priority queue base on sedgewick algorithms fourth edition we inherit from ienumerable so we can loop through the queue using foreach key implements comparable so we can compare keys and keep the minimum at the top using the sink and swim functions. Several adaptive approaches have recently been proposed. With mlq, each process is permanently assigned to one queue based on type, priority etc. Optimising dash over aqmenabled gateways using intrachunk. Load balancing in the presence of services in nameddata. A critical simulation of cpu scheduling algorithm using. Whenever a scheduling event occurs a task finishes, new task is released, etc.

Most people use chunk in video streaming and for p2p network. Optimal chunk scheduling algorithm based on taboo search for. Aqcs is a distributed algorithm with minimum requirement on peers. Dec 10, 2019 cisco ios quality of service solutions command reference. Skiplistbased concurrent priority queues 3 up deletions. The delay of the path change as path traffic intensity changes. The video streaming workload increases quadratically with the. The proposed scheme can achieve high bandwidth utilization and optimal streaming rate possible in a p2p streaming system. The system provides audiovisual means for directing customers, a friendly user interface for agents to manage lines and call. The difference between stacks and queues is in removing. Link rate allocation is very important for supporting high video playback rate in peertopeer video streaming. A program that implements the queue using an array is given as follows. One end is always used to insert data enqueue and the other is used to remove data dequeue.

The priority of each batch queue job is determined by job properties, such as the requested resource requirements number of processors and total time, its owners credentials, and the time it has waited in the queue. Adaptive queuebased chunk scheduling for p2p live streaming. An adaptive data chunk scheduling for concurrent multipath. Despite preliminary successes, ppva and similar peertopeer engines are still facing a series of unique challenges from ugc videos. These requests are classified into different queues according to their identifier. What is the queue scheduling mechanism on an interface. Although many studies can be found on resource allocation in p2p streaming in wired networks, very few studies have studied the problem in wireless networks, especially in wireless multihop mesh networks wmns, which is still challenging. In this study, the authors focus on the optimisation of. New tasks are inserted into the queue such that the queue remains sorted. Upload capacity information of peerssource is not required, and the scheme adapts to the changing peer membership and network environment automatically. Optimal chunk scheduling algorithm based on taboo search for adaptive live video streaming in cdnp2p abstract.

Enterprise products, solutions and services for enterprise. Peertopeer p2p overlaybased streaming services have became more and more attractive. Accelerating large scale image analyses on parallel, cpu. Some c programs to simulate three cpu scheduling the following three algorithms for a multicore computing system consisting of four homogeneous cpus. Load balancing is a mechanism to distribute client requests among several service instances. Queuing model based on scheduling strategies affect local. As the traditional serverbased solutions incur high infrastructure and bandwidth cost, conventional peertopeer p2p solutions only leveraging endusers upload bandwidth are normally not selfsustainable. Example let processes with long cpu bursts move down in the queue levels leave io bound and interactive processes in highpriority queues. Dynamic hw priority queue based schedulers for embedded system. The adaptive queuebased chunk scheduling method is a distributed solution.

This paper presents a queue based job scheduling algorithm for efficient execution of user jobs. Queue management system totalqueue software provides your. This paper proposes an adaptive data chunk scheduling policy for cmt acmt, which uses path delay and bandwidth as a factor of data chunk scheduling. Differentiated chunk scheduling for p2p videoon demand system. Consider below table of four processes under multilevel queue scheduling. We consider a particular scheme, which we call the adaptive virtual queue avq, and study its following properties. For instance, queue 1 takes 50 percent of cpu time queue 2 takes 30 percent and queue 3 gets 20 percent of cpu time. Contents introduction operations on queue array representation of queues linked representation of queues types of queues circular queues deques priority queues application of queues references 2. This pap er proposes an adaptive queuebased chunk scheduling method. Yaodong cui, fei chen, rui liu, yong liu, xuan yan. In this paper, we propose aqcs, adaptive queuebased chunk scheduling, that can support. Our queue management system allows customers and visitors to enter a queue by taking a ticket via different channels such as self service ticketing kiosk, web ticketing, mobile app and online. Split files into differentlysized chunks, primarily so that large files can be transported via media that is smaller than the size of the file.

Their combined citations are counted only for the first article. Instead of handling a command or event, synchronously and inprocess, work can be dispatched to a distributed task queue to be handled asynchronously and outofprocess. Sep 07, 2010 most people use chunk in video streaming and for p2p network. Adaptive queue based chunk scheduling for p2p live streaming avoiding quality bottlenecks in p2p adaptive streaming capacity analisys of peertopeer adaptive streaming. As the traditional server based solutions incur high infrastructure and bandwidth cost. Rr round robin scheduling with time quantum q2 milliseconds, q12 milliseconds, q50 milliseconds, respectively.

Us20060184688a1 system and method for parallel indirect. Optimal bandwidth sharing in multiswarm multiparty p2p video. This requires that the largest delay among all queues at the helpers serving any. A document is emailed to the system the system does a number of preparatory actions to the document. Queuing model in a particular peer we used two different types of scheduling policies for. In other words, the least recently added element is removed first in a queue. The lower delay variation path has low traffic intensity while large delay variation path may have high traffic intensity or congestion. A complete system that caters to diverse queuing needs from a basic queuing system to a sophisticated, multi branch, multiregion enterprise solutions.

Tians dynamic scheduling algorithm called least integratedload first lif 10 also take into account multipledimensional resources. Collaborative delayaware scheduling in peertopeer ugc. Downloading in chunks using wcf and silverlight codeproject. In this figure, the serving peer receives different types of chunk requests. The simulator selects a task to run from ready queue based on the scheduling algorithm. Multistream 3d video distribution over peertopeer networks. Initialize the population, and set each dimension value range of individual at the corresponding range. For adaptive streaming, the server stores different quality versions of the same chunk in different files to allow realtime quality adaptation of the video due to network bandwidth variation experienced by a client. In scheduling processes it is a good idea to schedule cpuintensive processes separately from iointensive processes 3,4,5.

At scheduling time, the search for a suitable task to run can be limited to a certain priority range defined by the top most priority task in the system and priority boost given for tasks running on the same processor and on the. S12700 v200r010c00 configuration guide qos this document describes the configurations of qos functions, including mqc, priority mapping, traffic policing, traffic shaping, interfacebased rate limiting, congestion avoidance, congestion management, packet filtering, redirection, traffic statistics, aclbased simplified traffic policy, and hqos. Qnomys queue management software helps you organize your waiting lines by providing visitors with an easy ordering method based on first in first out, prescheduled appointments, and more sophisticated methods. A simple algorithm for generating optimal equal circle cutting patterns with minimum sections. Analysis and design of an adaptive virtual queue avq.

Cisco ios quality of service solutions command reference. In this paper, we propose aqcs, adaptive queuebased chunk scheduling, that can support the maximum streaming rate allowed by a p2p streaming system with small signaling overhead and short startup. First, a queuebased performance model for cloud applications is proposed to correlate performance and workloads. The chunk selection in p2p network is very crucial. The architecture provides a framework wherein tasks are executed in a structured fashion, which reduces unpredictability and enables engineers to easily and quickly reproduce and debug customer escalations. Data structure and algorithms queue tutorialspoint. Srikant abstract virtual queuebased marking schemes have been recently proposed for aqm active queue management in internet routers. We consider a particular scheme,which we call the adaptive virtual queue avq,and. This paper also includes the comparative performance analysis of our proposed job scheduling algorithm along with other wellknown job scheduling algorithms considering the parameters like average waiting time, average response time. The software that evaluates objects to determine if they meet the conditions of any rules in the rule base and then executes the actions defined in the rules.