Protium, an infrastructure for partitioned applications

Cliff Young, Y.N. Lakshman, Tom Szymanski, John Reppy, David Presotto, Rob Pike, Girija Narlikar, Sape Mullender, Eric Grosse

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    18 Citations (Scopus)
    10 Downloads (Pure)


    Remote access feels different from local access. The major issues are consistency (machines vary in GUIs, applications, and devices) and responsiveness (the user must wait for network and server delays). Protium attacks these by partitioning programs into local viewers that connect to remote services using application-specific protocols. Partitioning allows viewers to be customized to adapt to local features and limitations. Services are responsible for maintaining long-term state. Viewers manage the user interface and use state to reduce communication between viewer and service, reducing latency whenever possible. System infrastructure sits between the viewer and service, supporting replication, consistency, session management, and multiple simultaneous viewers. The prototype system includes an editor, a draw program, a PDF viewer, a map database, a music jukebox, and windowing system support. It runs on servers, workstations, PCs, and PDAs under Plan 9, Linux, and Windows; services and viewers have been written in C, Java, and Concurrent ML.
    Original languageEnglish
    Title of host publication8th Workshop on Hot Topics in Operating Systems (HOTOS)
    Place of PublicationLos Alamitos, CA
    Number of pages6
    ISBN (Print)0-7695-1040-X
    Publication statusPublished - May 2001
    Event8th Workshop on Hot Topics in Operating Systems 2001 - Elmau, Germany
    Duration: 20 May 200122 May 2001
    Conference number: 8


    Conference8th Workshop on Hot Topics in Operating Systems 2001
    Abbreviated titleHOTOS 2001


    • METIS-203325
    • EWI-961
    • IR-36889


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