Disk scheduling in a multimedia I/O system
MULTIMEDIA '93 Proceedings of the first ACM international conference on Multimedia
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Handling sporadic tasks in multimedia file system
MULTIMEDIA '00 Proceedings of the eighth ACM international conference on Multimedia
Cello: A Disk Scheduling Framework for Next Generation Operating Systems*
Real-Time Systems - Flexible Scheduling on Real-Time Systems
A Novel Deadline Driven Disk Scheduling Algorithm for Multi-Priority Multimedia Objects
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Disk Scheduling onMultimedia Storage Servers
IEEE Transactions on Computers
Hierarchical disk sharing for multimedia systems
NOSSDAV '05 Proceedings of the international workshop on Network and operating systems support for digital audio and video
Operating system support for multimedia systems
Computer Communications
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For mixed-media workload, disk scheduling strategies should meet the deadlines of requests with timing constraints while optimizing the disk utilization. To design a scheduling algorithm in mixed-media workload environment is very intricate because finding an optimal schedule is NP-hard as well as different QoS (Quality of Service) of each request should be guaranteed. In this paper, we present a novel real-time disk scheduling algorithm which meets the QoS of each requests. Our algorithm employs several heuristics using the requirements of each request and thus could reduce the huge solution space to a feasible extent. Through trace-driven simulation, we show that our algorithm outperforms other algorithms in terms of response time, throughput, and QoS guarantee for real-time requests.