Sökning: "Performance bottlenecks"

Visar resultat 1 - 5 av 59 avhandlingar innehållade orden Performance bottlenecks.

  1. 1. Performance problem diagnosis in cloud infrastructures

    Detta är en avhandling från Umeå : Department of Computing Science, Umeå University

    Författare :Olumuyiwa Ibidunmoye; Umeå universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Systems Performance; Performance anomalies; Performance bottlenecks; Cloud infrastructures; Cloud Computing; Cloud Services; Cloud Computing Performance; Performance problems; Performance anomaly detection; Performance bottleneck identification; Performance Root-cause Analysis; Computer Systems; datorteknik; Computer Science; datalogi;

    Sammanfattning : Cloud datacenters comprise hundreds or thousands of disparate application services, each having stringent performance and availability requirements, sharing a finite set of heterogeneous hardware and software resources. The implication of such complex environment is that the occurrence of performance problems, such as slow application response and unplanned downtimes, has become a norm rather than exception resulting in decreased revenue, damaged reputation, and huge human-effort in diagnosis. LÄS MER

  2. 2. Efficient Memory Modeling During Simulation and Native Execution

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Nikos Nikoleris; Uppsala universitet.; Uppsala universitet.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; performance analysis; cache performance; multicore performance; memory system; memory bandwidth; memory contention; performance prediction; multi-threading; multiprocessing systems; program diagnostics; commodity multicores; multithreaded program resource requirements; performance counters; scalability bottleneck; scalability improvement; Computer Science; Datavetenskap;

    Sammanfattning : Application performance on computer processors depends on a number of complex architectural and microarchitectural design decisions. Consequently, computer architects rely on performance modeling to improve future processors without building prototypes. LÄS MER

  3. 3. Towards Scalable Performance Analysis of MPI Parallel Applications

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Xavier Aguilar; KTH.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parallel computing; performance monitoring; performance tools; event flow graphs; Datalogi; Computer Science;

    Sammanfattning :   A considerably fraction of science discovery is nowadays relying on computer simulations. High Performance Computing  (HPC) provides scientists with the means to simulate processes ranging from climate modeling to protein folding. LÄS MER

  4. 4. District Heating Development : Prosumers and Bottlenecks

    Detta är en avhandling från Department of Energy Sciences, Lund University

    Författare :Lisa Brange; Lunds universitet.; Lund University.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; District heating; Prosumers; Bottlenecks; Pressure; Differential pressure; Planning; Simulations;

    Sammanfattning : The overarching objective of the studies in this thesis is to solve issues associated with the current district heating development in order to improve the efficiency, and thus the environmental performance, of district heating systems. More specifically, the aim is to solve issues related to prosumers and bottlenecks in district heating networks. LÄS MER

  5. 5. Exhaustion Dominated Performance : Methodology, Tools and Empirical Experiments

    Detta är en avhandling från Göteborg : Chalmers University of Technology and Göteborg University

    Författare :Nima Namaki; Högskolan Väst.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TECHNOLOGY Information technology Computer science; TEKNIKVETENSKAP Informationsteknik Datavetenskap; Computer engineering; Datateknik; Computer cluster; resource exhaustion; measurement methodology; verification methods; engineering simulation applications; engineering simulation applications.;

    Sammanfattning : Problem with application sensitivity to insufficient resources in High PerformanceComputing (HPC) clusters has been a longstanding issue of concern for industries. Inthis thesis we propose a method based on a black box approach for characterizationand analysis of engineering simulation applications with respect to available hardwareresources in the situation of resource depletion. LÄS MER