• NYC local event: UNIGROUP 19-OCT-2017 (Thu) Meeting: Linux Performance

    From Jeff Jonas@21:1/5 to All on Sun Oct 8 10:37:02 2017
    UNIGROUP OF NEW YORK - UNIX USERS GROUP - OCTOBER 2017 ANNOUNCEMENTS ====================================================================


    Topic: Linux Performance Tuning

    Speakers: Joe Mario, Senior Principle Engineer, Low Latency Team,
    Larry Woodman, Linux Kernel Team,
    Red Hat <http://www.redhat.com>

    When: Thursday, October 19th, 2017 (** 3rd Thursday **)

    Where: The Cooper Union <http://www.cooper.edu>
    School of Engineering
    41 Cooper Square (3rd Ave @ 7th St, bet. 6th & 7th Sts)
    East Village, Manhattan
    New York City
    Meeting Room: 504 (** New Building: 5th Floor **)

    Time: 6:15 PM - 6:30 PM Registration
    6:30 PM - 6:45 PM Ask the Wizard, Questions,
    Answers and Current Events
    6:45 PM - 7:00 PM Unigroup Business and Announcements
    7:00 PM - 9:30 PM Main Presentation

    Cost: See the Meeting+Membership Fee Schedule Below.


    Unigroup is pleased to announce that Red Hat will be
    presenting "Linux Performance Tuning" at our October 2017
    meeting. We are planning to hold a comprehensive meeting
    on cranking out the highest performance from your Linux
    Servers. We expect to cover topics ranging from Kernel
    Tunables, through adjusting the Network Stack and Kernel
    Scheduling for Low Latency, through Software Development
    issues such as programming with NUMA CPU Locality in mind
    and tweaking compiler options for maximum CPU performance.

    Unigroup's scheduled meeting topics are:
    19-OCT-2017: Linux Performance Tuning (Red Hat)
    16-NOV-2017: Open Config / Multi-Vendor Network Programmability
    (Arista Networks)



    Most Unigroup meetings are open to the public!

    To REGISTER for this event, please RSVP by using the Unigroup
    Registration Page:

    This will allow us to automate the registration process.
    (Registration will also add you to our mailing list.)
    Please avoid Emailed RSVPs.

    Please continue to check the Unigroup web site and meeting page,
    for any last minute updates concerning this meeting. If you
    registered for this meeting, please check your Email for any last
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    Also, if you have an interest in Unigroup, be sure to receive
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    of our Emails and by visiting the Unigroup Web Site. NO OTHER
    SOURCE provides timely, accurate and complete Unigroup information.

    Please RSVP as soon as possible, preferably at least 2-3 days
    prior to the meeting date, so we can plan the food order.
    RSVP deadline is usually the night before the meeting day.

    Note: RSVP is requested for this location to make sure the guard
    will let you into the building. RSVP also helps us to
    properly plan the meeting (food, drinks, handouts,
    seating, etc.) and speed up your sign-in at the meeting.
    If you forget to RSVP prior to the meeting day, you may
    still be able to show up and attend our meeting, however,
    we cannot guarantee what building security will do if
    you are "not on the list" (note: things tend to work out OK).



    Topic: Linux Performance Tuning

    Related Topics/Keywords

    Computer Operating Systems, Linux, RHEL, CentOS, Fedora, Linux
    Kernel, Linux Scheduler, Linux Performance Tuning, Low Latency,
    Filesystems, Devices, I/O Throughput, Memory, NUMA Memory Access,
    CPU Architecture, CPU Locality, CPU Platform Differences,
    Software Development, Compiler Tuning, Network Stack Tuning,
    Applications Tuning.

    Introduction & Description of Talk:

    This talk will cover topics towards achieving the Highest
    Performance (Throughput/Low Latency) from your Linux Servers.

    Presentation Outline

    - Detailed Low Latency Tuning Steps.
    - Common ways NUMA hurts your Performance.
    - Detecting and Fixing CPU Cacheline Contention,
    including False Sharing.
    - Brief coverage of Compiler Performance Tips.
    - Fundamental Internals Overview of Page Cache, MM, IPC,
    CPU Scheduler, followed by Performance Tuning parameters
    and tips for those areas.
    - Throughput vs Latency Tuning.
    - Interactions between File Systems, Memory, and Devices.

    References & Web Resources:

    Red Hat:

    Red Hat Enterprise Linux - RHEL:

    Red Hat RHEL Release History Timeline:

    CentOS Linux Project:

    Fedora Linux Project:


    Speakers Biography

    Joe Mario - Senior Principle Engineer - Low Latency Team - Red Hat

    Joe Mario, a senior principle engineer at Red Hat, has worked in
    compiler and operating system performance teams for the past 26
    years. He spent years implementing compiler and tool
    optimizations in the OS and customer code for three different
    operating systems. His recent focus has been on co-developing a
    tool to detect cpu cacheline false sharing, and low latency tuning.

    Larry Woodman - Linux Kernel Team - Red Hat

    Larry Woodman has over 36 years of operating system kernel
    development experience. He started contributing to the AT&T UNIX
    System V kernel in 1981 at Bell Labs. Over the years he has
    worked on several versions of UNIX for a variety of hardware and
    software vendors, several proprietary operating systems and Linux
    over the past 18 years for Red Hat. This work includes memory
    management, process management, inter process communication as
    well as hardware support and device drivers.


    Company Biography

    See http://www.redhat.com/en/about/company ...
    Red Hat says they are the world's leading provider of open source,
    enterprise IT solutions.

    For information about Red Hat and RHEL, please visit:



    Addison-Wesley Professional/Prentice Hall PTR, and O'Reilly have
    been kind enough to provide us with review copies of some of their
    books, which we will continue to raffle off as giveaways at our
    meetings. The publishers always ask that the persons receiving
    the books provide a review and/or feedback about their books.

    Unigroup would like to thank both companies for the support
    provided by their User Group programs.

    As always, all of the books will be available for review at the
    start of the meeting.

    Note: Our book supply is currently running low, and we need to


    Fee Schedule:

    Unigroup is a Professional Technical Organization and User Group,
    and its members pay a yearly membership fee. For Unigroup members,
    there is usually no additional charges (ie. no meeting fees) during
    their membership year. Non-members who wish to attend Unigroup
    meetings are usually required to pay a "Single Meeting Fee".

    Yearly Membership (includes all meetings): $ 50.00
    Student Yearly Membership (with current! ID): $ 25.00
    Non-Member Single Meeting Fee: $ 20.00
    Non-Member Student Single Meeting (with! ID): $ 5.00

    * Payment Methods: Cash, Check, American Express.
    MasterCard, VISA, Discover (since 2013).

    ! Students: We are looking for proof that you are
    currently enrolled in classes (rather than working
    full-time), and as such, your Student ID should show
    a CURRENT date. We have been presented Student IDs
    containing NO dates whatsoever, and in the
    current environment, perpetual/non-expiring access
    to university facilities just does not feel right.
    If your ID contains no date, please bring
    additional proof of current enrollment. Thanks,

    NOTE: Simply receiving Unigroup Email Announcements does
    NOT indicate membership in Unigroup.

    Members: Remember to bring your Unigroup membership card with
    you to the meeting, to confirm your yearly renewal date!



    Complimentary Food and Refreshments will be served.

    This normally includes "wraps" such as turkey, roast beef,
    chicken, tuna and grilled vegetables as well as assorted salads
    (potato, tossed, pasta, etc), cookies, brownies, bottled water
    and assorted SOFT beverages.

    However, due to a continuing situation at our caterer, we are
    planning to have: pizza (cheese+veggy), soda, water, cookies,
    and brownies at this meeting.

    Red Hat will be sponsoring the food service for this meeting.
    Thanks Red Hat!



    The Cooper Union <http://www.cooper.edu>
    School of Engineering (*** New Building ***)
    41 Cooper Square (3rd Avenue @ 7th St, between 6th & 7th Streets)
    East Village, Manhattan
    New York City, 10003
    Meeting Room: ** (See Above, Room Changes Month-to-Month)

    Located on the East side of Cooper Square. Look for the
    new building with the non-traditional appearance.
    Entrance is at the corner of 3rd Avenue and 7 Street.

    Building lobby sign-in is required at the guard's desk.
    Enter the building, check in with the guard at the lobby for
    directions to Unigroup (the room varies from month-to-month).

    Nearest mass transit stations are:
    '6' to Astor Place (stops right at The Cooper Union),
    then walk 1 block East and 1 block South.
    'R' to 8th Street, then walk about 2 blocks East
    then 1 block South.
    '4/5/N/Q' to Union Square, then walk South and East.
    or transfer to the downtown '6' to Astor Place.
    'B/D/F/V' to Broadway-Lafayette, then walk North and East,
    or transfer to the uptown '6' to Astor Place.

    Free street parking in the area becomes available at 6pm.

    There are also parking lots on Broadway, at (or just south of)
    Astor Place (8th Street), across from the West side of
    Cooper Square, as well as various others in the area.


    Please mark this meeting on your calendar and join us!
    Please tell your friends about Unigroup!

    ---------------------------------------------------------------------------- ----------------------------------------------------------------------------


    ** Formal Thank You's to our previous speakers will appear
    in an upcoming announcement. Unigroup issues a "Thank You"
    to all our speakers and sponsors!

    Our thanks goes to The Cooper Union School of Engineering,
    and its staff, for hosting our meetings.

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    a) NAB/CCW - NAB Show (formerly: Content & Communications World) / SATCON

    Dates: Wed, Oct 18, 2017
    Thu, Oct 19, 2017

    Where: Javits Center
    Midtown, NYC

    For information and complimentary exhibits registration visit:

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    We have a series of meetings in the works:
    - 2018????: Programming for Performance with GPUs.
    - 2018????: New x86 and ARM Architectures.
    - 2018????: The Latest C++ Standards, Part 2.
    - 2018????: The State of the C++ Ecosystem.
    - Planning: Popular Linux Distribution Round-Up and Comparison
    (aka: Are there too many Linux Distributions?)
    - Planning: Building a Data Server with ZFS
    - Planning: Virtualization: KVM, Xen/XenServer, VirtualBox
    - Planning: DNS / Dynamic DNS
    - Planning: Fibrechannel and iSCSI Storage
    - Planning: IPsec and VPNs (possibly 2 meetings)
    - Planning: Cloud and Grid Computing
    - Planning: Unix/Linux Authentication
    - Planning: NO SPAM!
    - Planning: Crypto / PKI / GPG-PGP
    - Planning: The latest on *BSD (FreeBSD/NetBSD/OpenBSD)
    - Planning: The latest on Solaris
    - Planning: The latest on AIX
    - Planning: Anti-Virus
    - Unix/Linux/BSD Clusters and Clustered Databases
    - Patching and Updating Unix/Linux/BSD (rpm. yum, yast, apt, etc.)
    - Building Custom Kernels Unix/Linux/BSD
    - Building a Firewall using FreeBSD and Linux
    - LAMP Part 2 - PHP/Python
    - Unix 40th+ Birthday Celebration
    - Samba
    - High Performance Internet Servers / Web Acceleration
    - Unix Office Tools: Word Processors, Spreadsheets, Accounting Packages.
    - GNU Development Environments
    - Java and/or JavaScript Programming
    - Web Development Frameworks

    ** Unigroup Needs Speakers!!
    Please let us know about any other meeting topics that you may be
    interested in. Potential speakers on Unix/Linux/BSD related
    technology topics should please contact the Unigroup Board.

    ---------------------------------------------------------------------------- ----------------------------------------------------------------------------


    Unigroup is one of the oldest and largest Unix User's Groups serving
    the Greater New York City Regional Area since the early 1980s.
    Unigroup is a not-for-profit, vendor-neutral and member funded
    volunteer organization. Unigroup holds regular and special event
    meetings throughout the year on technical topics relating to the
    Unix/Linux/BSD Operating Systems and User Communities. Unigroup
    meetings tend to be focused towards System Administrators, Network
    Administrators, and Software Developers.

    Unigroup holds regular meetings planned for (at a minimum) the Third
    THURSDAY of Odd Months. We generally try to hold Field Trip or
    Vendor Specific Meetings on the Even Months, although we do have the
    ability to hold monthly meetings at our regular meeting location.

    Planned regular meeting dates are (usually 3rd Thursdays):
    10/19/2017, 11/16/2017, 01/{11|18}/2018, ...
    Also watch for Special Event meetings and "Field Trips" to the
    facilities of local hardware and software vendors.

    = For Unigroup Information, Events and Meeting Announcements be sure to =
    = visit our World Wide Web Home Page: =
    = http://www.unigroup.org =

    For further information or to get on the Unigroup Electronic Mail Mailing
    List send an EMail message to:
    unilist (-a_t-) unigroup.org

    To contact the Board of Directors of Unigroup, send an EMail message to:
    uniboard (-a_t-) unigroup.org

    If you have recently attended a meeting and you are not receiving
    Email announcements, please send us an Email and we will make
    corrections to our lists.

    Please Email the Board with any suggestions, especially potential
    meeting topics and speakers. Unigroup welcomes contributions and
    content suggestions for our newsletter. Unigroup is a volunteer
    organization and we need your assistance! Please let us know if you
    can help!

    ---------------------------------------------------------------------------- ----------------------------------------------------------------------------

    -Rob Weiner
    Unigroup Executive Director
    unilist (-a_t-) unigroup.org

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