WoTUG - The place for concurrent processes

Paper Details

  title = "{N}ative {JCSP} - the {CSP} for {J}ava library with a {L}ow-{O}verhead {CSP} {K}ernel",
  author= "Moores, James",
  editor= "Welch, Peter H. and Bakkers, Andr\`{e} W. P.",
  pages = "263--274",
  booktitle= "{C}ommunicating {P}rocess {A}rchitectures 2000",
  isbn= "1 58603 077 9",
  year= "2000",
  month= "sep",
  abstract= "The JCSP library provides a superior framework for building
     concurrent Java applications. Currently, CSP is a collection
     of classes that uses the standard Java Threads mechanism to
     provide low-level facilities such a process scheduling and
     synchronization. The overheads of using Java Threads can be
     quite large though, especially for synchronization and
     context switching. This paper begins by describing various
     options for increasing performance, and then how the
     standard Java threads work. The integration of the
     low-overhead CCSP run-time system into a Linux-based Sun JDK
     1.2.1 Java Virtual Machine is then described. This
     integration provides the low-level support required to
     dramatically increase the performance of the JCSP library's
     model of concurrency. The paper then looks at the problem of
     maintaining backward compatibility by preserving the
     functionality of the existing threads mechanism on which
     much legacy code depends. The paper finishes by looking at
     the performance displayed by the current prototype JVM and
     contrasting it with the performance of both Green
     (co-operatively scheduled) and Native (operating-system
     scheduled) Java Threads."

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