Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 24 for “"Resource Contention"”.
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Fixed-Priority Scheduling of Periodic Tasks With End-to-End Deadlines
… an end-to-end scheduling based approach to the resource contention problem in distributed real-time systems. Simulation results show that the end-to-end scheduling approach performs better in many cases than an existing approach, known as the Multiprocessor Priority Ceiling Protocol. In the …
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Parallel acceleration of deadlock detection and avoidance algorithms on GPUs
… tasks. The growing issue with these systems is resource contention and with resource contention comes the risk of encountering a deadlock status in the system. Various software and hardware approaches exist that implement deadlock detection/avoidance techniques; however, they lack either the …
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Dynamic Optimization in Hardware
… It is primarily useful for reducing processor resource contention and increasing ILP. Discrete optimization captures reusable chunks of the dynamic instruction stream, optimizes them, and then sequences them back into execution. Its primary benefits come from reducing instruction count and …
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Evaluating MapReduce System Performance: A Simulation Approach
… network topology, new scheduling algorithms, or resource arrangement schemes. The traditional trial-and-error solution involves the time-consuming and costly process in which a real cluster is first built and then benchmarked. In this dissertation, we propose to simulate MapReduce systems and …
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Measuring, modeling, and optimizing counterintuitive performance phenomena in power-scalable, parallel systems
… and nondeterminism and identify the I/O resource contention as the root cause of the slowdowns during processor speedup. Specifically, such contention comes from the Linux kernel when the journaling block device (JBD) interacts with the ext3/4 file system that introduces file write delays …
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Scaling Privacy Perserving Payments
… that unmodified Tornado Cash indeed suffers from resource-contention induced scalability bottlenecks. In contrast, our new design is achieves throughput that is less than an order of magnitude away from e-cash, despite providing auditability.
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Measurement and evaluation of multimedia I/O performance
… of multimedia I/O activity. Third, an I/O resource contention model is created that incorporates measurements of I/O device interaction. Fourth, the I/O signature is developed as a technique for evaluating and predicting application I/O performance. Fifth, a multimedia benchmark and …
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Pensieve: Microarchitectural Modeling for Security Evaluation
… precisely capturing timing variations due to resource contention and microarchitectural optimizations. We implement a model checking framework to automatically find vulnerabilities in designs. We use Pensieve to evaluate a series of state-of-the-art invisible speculation defense schemes, …
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Enabling the “Easy Button” for Broad, Parallel Optimization of Functions Evaluated by Simulation
… environment with the opportunity for significant resource contention for master node computing power and network bandwidth. </p> <p>JOBS implements several population-based and single-solution improvement metaheuristics (solvers) for real, discrete, and mixed problems. The object-oriented design …
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Enabling Efficient ML Inference in SigmaOS with Model-Aware Scheduling
… when it comes to minimizing latency and resource contention, especially as models grow in size and complexity. This thesis addresses the cold start overhead and scheduling inefficiencies of multi-tenant ML serving by integrating the RayServe distributed model-serving framework into σOS, a …
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Computational Offloading for Real-Time Computer Vision in Unreliable Multi-Tenant Edge Systems
… bottlenecks. Unlike seemingly unlimited Cloud resources, an Edge Node, serving multiple clients, may incur delays due to resource contention. This project describes relevant Computer Vision workloads and how an effective offloading framework must adapt to the constraints that impact the Quality …
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Globally Synchronized Frames for guaranteed Quality-of-Service in shared memory systems
Resource contention among concurrent threads on multicore platforms results in greater performance variability of individual threads than traditionally seen with time-multiplexed threads on single-core platforms. This performance variability makes it hard to provide performance guarantees, degrades …
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Towards Data-Driven I/O Load Balancing in Extreme-Scale Storage Systems
… (HPC) centers exhibit load imbalance and resource contention. This is mainly due to two factors: the bursty nature of the I/O of scientific applications; and the complex and distributed I/O path without centralized arbitration and control. For example, the extant Lustre parallel storage …
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Tunable WCET for hard real-time multicore system
… timing behavior that mainly arises from shared resource contention in current multicore architectures has been the biggest stumbling block for a widespread use of multicores in hard real-time systems. A great deal of research efforts have been devoted to address the issue. Among others, the …
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An assembly and offset assignment scheme for self-similar traffic in optical burst switching
… network performance in terms of burst drop, resource contention and delay. Key to any traffic shaping is the nature traffic being shaped. This work also compares performance of both traditional exponential traffic with realistic Self-Similar traffic of Internet traffic on the proposed …
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An experimental study of monolithic scheduler architecture in cloud computing systems
… clusters is critical to job performance and resource utilization. As the cluster size grows to thousands of machines and scheduling needs become complex and varied, scheduling in cloud-scale clusters presents unique challenges. To encourage the development of innovative schedulers, there is a …
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Scalable Data Management for Object-based Storage Systems
… for efficient data management arise from poor resource allocation, load imbalance in object storage targets, and inflexible data sharing between applications in a workflow. In addition, parallel I/O makes it challenging to shoehorn new interfaces, such as taking advantage of multiple layers of …
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Implementing Scientific Simulation Codes Tailored for Vector Architectures Using Custom Configurable Computing Machines
… and approach to utilize reconfigurable computing resources in place of a vector supercomputer towards the implementation of a legacy source code without a large re-hosting effort. The choice of a vector processing model constrains the solution space such that practical solutions to the underlying …
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Simulation of large-scale system-level models
… a uniprocessor system are analyzed. The system resources of the workstation used to perform the simulations are carefully monitored to see where resource utilization problems usually occur. The size of the model is increased and the run time of the simulation compared with that of smaller sized …
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Scalability Analysis and Optimization for Large-Scale Deep Learning
… data-processing components on shared hardware resources causes these components to contend with one another, leading to severe computational imbalance and degraded scalability. We propose various novel optimizations that minimize resource contention and improve performance by up to 35% for …
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