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NYC LOCAL: Wednesday 21 April 2004 NYLUG Meeting: Mark Slater on Linux i

From: secretary
Subject: NYC LOCAL: Wednesday 21 April 2004 NYLUG Meeting: Mark Slater on Linux in Real Time
Date: 21 Apr 2004 01:45:46 -0400

  what="official NYLUG announcement">

 ---------- Forwarded message ----------
 Date: Tue, 20 Apr 2004 09:45:00 -0400 (EDT)
 From: John Bacalle <>
 Reply-To: Announcements for NYLUG <>
 To: NYLUG Announcements <>
 Subject: [nylug-announce] TOMORROW! NY Linux Users Grp. 21 April Meeting:
     Mark Slater on Linux in Real Time

 April 21st, 2004
 IBM Headquarters Building
 590 Madison Avenue at 57th Street
 12th Floor, home to the IBM Linux Center of Competency

 ** RSVP Instructions **
     Unless you have already rsvp'ed for a prior meeting, everyone
     should RSVP to attend.
     Check in with photo ID at the lobby for badge and room number.

                    Mark Slater (Concurrent Computer Corp.)
                              Linux in Real Time

    Certain applications in computing need the immediacy of operating in
    real time. Complex simulation, for instance. Data acquisition, and
    instant manipulation: Financial markets. Any use for which microsecond,
    guaranteed response is your overwhelming value you need low latency,
    more importantly you must have Real Time capability. A Real Time
    kernel, a Real Time Linux distribution, a Real Time suite of tools is
    what you want, need. This month Mark Slater, of Concurrent Computer
    Corporation, presents the RedHawk realtime Linux kernel and its suite
    of libraries and development tools.

    RedHawk comprises open source patches (low latency, for example); an
    'rt' library is supplied to allow user code to utilize things like the
    PCI Base Address Register utility for driver writers; mpadvise for CPU
    affinity (delegating jobs to specific CPUs, as per your choice);
    server_block server_wake for process coordination; and shmbind and
    usermap for memory and address space management.

    There are other features in the Redhawk kernel that contribute to
    realtime performance that don't require linking applications with
    RedHawk libraries: Context switching, preemption, priority inheritance,
    hyperthreading control and CPU shielding.

    Mark will demonstrate RedHawk Linux (based on Red Hat Enterprise 3.0),
    he will display CPU shielding capability, and he will discuss the
    suite's development tools.

    Here is an outline of the meeting:

      * What is RedHawk? (Realtime Linux Kernel)
      * How does it relate to Red Hat? (Describes the RedHawk/Red Hat
      * Open Source Patches (Describes those patches from the open source
      * Concurrent Performance Enhancements (Those things Concurrent did
        for performance)
      * Shielded CPUs (Discuss added capabilities and utilities for
        hyperthreading and shielding)
      * RedHawk and (Describes how RedHawk is kept current with
      * Determinism and Interrupt Response (Show histograms of benchmarks)
      * Development Environment (Compilers, utilities, NightStar Tool set)

    Whether you have an interest in realtime, near instantaneous computing
    for applied use (Concurrent offers complete hardware-Linux offerings),
    or are interested in development work with realtime kernels, and or
    finally the topic just plain piques your curiosity this presentation is
    for you. Now---it's realtime to say goodbye.

   For More Information Visit:

    RedHawk Linux, Concurrent Computer Corporation

   About Mark Slater:

    Mark is Senior Software Analyst with Concurrent Computer Corporation.

 Free Stuff!
     Swag of undetermined value and quantity may be distributed on a
     first-come, first-served basis. Arrive early for the best selection.

     GPG cryptography. Immediately after the presentation and continuing
     at Stammtisch we will be gathering for a keysigning. For those who
     already have keys, please remember to bring paper printouts of your
     40-character key fingerprint, as per the instructions in our howto
     docs. If you haven't created a key yet, and for keysigning details,
     our howto docs are a must read.

     After the meeting ... Join us around 8:30pm or so at TGI Friday's,
     located at 677 Lexington Avenue and 56th Street, second floor.
     Northeast corner.

 Please see our home page at for the HTMLized
 version of this announcement, our archives, and a lot of other good

 Monthly Reminder!
     Please read the NYLUG-Talk Posting Guidelines at:

 April 2004 - The New York Linux Users Group,
 nylug-announce mailing list


Distributed poC TINC:

Jay Sulzberger <>
Corresponding Secretary LXNY
LXNY is New York's Free Computing Organization.

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