Sökning: "atomic transactions"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden atomic transactions.

  1. 1. A Comparative Study of the Performance of Concurrency Control Algorithms in a Centralised Database

    Författare :Donald F Ross; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; Computer Science;

    Sammanfattning : "The performance of Concurrency Control Algorithms (CCAs) in databases has been widely studied over the last ten years, mainly using analytic and simluation techniques. Results have been contradictory. The main CCA categories to emerge are locking, timestamping and serial validation. LÄS MER

  3. 2. Schemes to Improve the Efficiency of Hardware Transactional Memory Systems

    Författare :Mridha Mohammad Waliullah; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transactional memory; parallel programming; chip-multiprocessor; multiprocessor;

    Sammanfattning : In todays ubiquitous multiprocessor environment parallel programming becomesan important tool to reap the maximum gain. But the traditional lock-based parallelprogramming model is not attracting average programmers as the level of expertiseneeded is very high. LÄS MER

  4. 3. Language-based Approaches to Safe and Efficient Distributed Programming

    Författare :Xin Zhao; Philipp Haller; Roberto Guanciale; Wolfgang De Meuter; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Programming languages; Distributed systems; Type system; Replicated data types; Computer Science; Datalogi;

    Sammanfattning : Distributed systems address the increasing demand for fast access to resources and fault tolerance for data. Strong consistency ensures that all clients observe consistent data updates atomically on all servers in a distributed system, and it is widely used in systems such as relational databases. LÄS MER

  5. 4. Techniques for finite element methods on modern processors

    Författare :Karl Ljungkvist; Jarmo Rantakokko; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap; Scientific Computing;

    Sammanfattning : In this thesis, methods for efficient utilization of modern computer hardware for numerical simulation are considered. In particular, we study techniques for speeding up the execution of finite-element methods. LÄS MER

  7. 5. Time and Frequency Transfer using Passive Techniques in Active Fiber Optic Networks

    Författare :Sven-Christian Ebenhag; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber link; optical fiber.; Global positioning system GPS ; fiber network; time transfer; two-way; synchronous optical networking SONET synchronous digital hierarchy SDH ; GPS carrier phase;

    Sammanfattning : For the modern society, high precision time and frequency transfer have become crucial since a large number of systems, such as telecommunication systems, require precise and stable synchronization. Electric power companies use synchronized systems for taking stability measurements and searching for errors in their networks. LÄS MER