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.
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Showing 1 to 20 of 99 for “"performance modeling"”.
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Performance modeling and control of web servers
This thesis deals with the task of modeling a web server and designing a mechanism that can prevent the web server from being overloaded. Four papers are presented. The first paper gives an M/G/1/K processor sharing model of a single web server. The model is validated against measurements ands …
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One-Dimensional Radial Flow Turbomachinery Performance Modeling
… The models can also be used to predict the performance of new machines provided that the model inputs can be accurately specified. Unfortunately, use of the TEIS and Two-Zone models as a predictive tool has been limited because an accurate and broadly applicable method of predicting the …
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Performance Modeling of Multiprocessor Systems With Paging
… model has been developed to describe the performance of a wide range of multiprocessor system configurations and workloads. This model deals specifically with P tightly-coupled, identical processors with shared primary and secondary memory. Secondary memory consists of a paging drum with S …
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Performance modeling framework for SLO-driven MapReduce environments
… accurate and efficient workload management and performance modeling tools are needed. Our hypothesis is that performance modeling of MapReduce environments through a combination of measurement, simulation, and analytical modeling for enabling different service level objectives is feasible, …
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Accelerated performance modeling and tuning of parallel programs
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Building Instance Aware Systems using Explicit Performance Modeling
… systems are often optimized to realize the best performance possible. However, these optimization techniques are typically blind to the system’s actual workload or the particular environment in which the system is deployed. The lack of awareness of the full picture, or “instance”, limits the …
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Performance Modeling, Optimization, and Characterization on Heterogeneous Architectures
… the way scientists think and approach high-performance computing (HPC). Hardware accelerators such as general-purpose graphics processing units (GPUs) and Intel Many Integrated Core (MIC) architecture continue to make in-roads in accelerating large-scale scientific applications. These …
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Development and enhancement of Computer Performance Modeling Tool (CPMT)
The Computer Performance Modeling Tool (CPMT) is a queueing network simulator to be used in support of Computer Performance and Evaluation courses like CS4400. This thesis is a continuation of the CPMT development project and consists of adaptive and perfective maintenance work to modify the …
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One-Dimensional Performance Modeling of Centrifugal Flow Vaned Diffusers
… These models were developed with frozen impeller modeling. This is the first time that modeling the TEIS and Two Zone input parameters has been attempted for vaned diffusers and impeller-diffuser coupling was not considered in this initial investigation. The centrifugal compressor experimental …
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Performance modeling of human-machine interfaces using machine learning
… Our final XGBoost model reached an out-of-sample performance of 4.01% mean absolute percent error (MAPE) using over 250,000 hours of historic data across multiple warehouses around the world. Our research will share methods to cross-examine and interpret the relationships learned by the model for …
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Nanosatellite Hyperspectral Imaging Performance Modeling for Ocean Color Detection.
… are particularly useful for monitoring and modeling phytoplankton, valuable fauna that form the basis of the marine food web, produce an estimated 50-85% of breathable oxygen, and provide the largest and most efficient mechanism for oceanic carbon capture. Monitoring the behavioral response …
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Performance Modeling, Design, and Analysis of Large Scale Terahertz Networks
… (SG) tools, I modeled and analyzed the downlink performance of (i) THz-only network, and (ii) two-tier (co-existing) RF and THz network in terms of the downlink interference and coverage probability of a typical user. First, I characterized the exact LT of the aggregate interference and coverage …
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Wave Energy Converter Performance Modeling and Cost of Electricity Assessment
… statistics from 1980 to 2001 are analyzed with performance specifications for the AquaBuOY, Pelamis P1, and WaveDragon wave energy converters (WECs) to calculate the annual electrical output of each device at each site. Sophisticated computer modeling of the bathymetric influence on the wave …
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Performance Modeling and Enhancement of the Structured Memory Access Architecture
… is essentially eliminated by an improved SMA and performance is then limited by process dependencies in the computation processor.
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Performance Modeling of Single Processor and Multi-Processor Computer Architectures
… of computer architectures. High level VHDL performance modeling of architectures is an efficient way to rapidly prototype and evaluate computer architectures. Determining the architecture configuration is fixed, one would like to know the tolerance and expected performance of …
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Battery Pack Design and Transient Performance Modeling for High-Power Legged Robots
… limits and actuator capabilities. However, high-performance maneuvers also demand rigorous consideration of onboard battery constraints. This work presents an empirically derived lithium-ion battery model that captures transient voltage sag and time-dependent internal battery state, enabling more …
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Quantitative performance modeling of scientific computations and creating locality in numerical algorithms
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Performance Modeling and Efficiency Analysis for a Piezohydraulic Pump with Active Valves
… of the fluid is important to system performance. At last, a power and efficiency analysis based on experimental results is presented.
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Stochastic Geometry for Mobility-Aware Performance Modeling in 6G Multi-band Wireless Networks
… tractable framework to analyze the performance of a mobile user in a two-tier wireless network operating on sub-6GHz and terahertz (THz) transmission frequencies. Specifically, using an equivalence distance approach, I characterize the overall handoff (HO) rate in terms of the …
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