WLUG's Upcoming Meeting

The May meeting is canceled. Please join us in June!

Date/Time: Wednesday, June 12
7:00 - 10:00 PM

Location: WPI Campus Center, Mid-Century Room 331

The following talk, originally scheduled for April 10, is postponed to a future meeting. April 10 will be a general meeting.

Internet buffer bloat, by Jim Gettys (Bell Labs)

VOIP and teleconferencing often perform much more poorly on today's Internet than the Internet of a decade ago, despite great gains in bandwidth. Lots of fiber, cheap memory, smart hardware, variability of wireless goodput, changes in web browser behaviour, changes in TCP implementations, and a focus on benchmarking Internet performance solely by bandwidth, and engineer's natural reluctance to drop packets have conspired to encourage papering over problems by adding buffers; each of which may introduce latency when filled.

The mistaken quest to never drop packets has destroyed interactivity under load, and often results in actual higher packet loss, as TCP's congestion avoidance algorithms have been defeated by these buffers. The lessons of the "RED manifesto" of 1997 have been forgotten or never learned by a new generation of engineers.

Recent Meeting Topics

March 13, 2013 - Roundtable discussion of people's Favorite Android Apps

February 13, 2013 - Chuck Anderson - More Raspberry Pi

January 9, 2013 - Keith Wright - Literate Programming

December 12, 2012 - WLUG website discussion

October 10, 2012 - Tim Keller - OpenStack

September 12, 2012 - Karl Lind - Raspberry Pi

June 13, 2012 - Dan Walsh, Red Hat - Secure Virtual Containers/Multi-Tenancy

May 9, 2012 - Chuck Anderson - Fedora 17 demo and feature review

April 12, 2012 - Tim Keller - ZFS

March 14, 2012 - Chuck Anderson - FreeNAS on a HP Microserver N40L

January 11, 2012 - Henrique Polido - Java NIO, Hadoop, Map/Reduce

December 14, 2011 - Henrique Polido - XMonad

September 14, 2011 - Chuck Anderson - Intro to IPv6

August 10, 2011 - WLUG BBQ

May 11, 2011 - Chuck Anderson - Init Systems

April 13, 2011 - Geoffrey Stewart - Scratch

March 9, 2011 - Tim Keller - Virtualization Technologies

February 9, 2011 - Chuck Anerson - GNOME 3 Shell / Fedora 15 Feature Overview and Demo

August 12, 2010 - WLUG BBQ

May 12, 2010 - Jeff Moyer - A Complete Guide to SSDs

March 11, 2010 - Frank Sweetser - BtrFS

January 14, 2010 - Andy Stewart - Using libHaru

Slides from Previous Meetings

Slides from previous meetings can be found here.

Friends of WLUG

Click here to see a list of organizations who have been helped WLUG by donating goods, services, building space, and the like. WLUG thanks you for your generosity, and looks forward to maintaining a mutually beneficial relationship with you.

WLUG IRC Channel

Join us in the #wlug-ma channel on irc.freenode.net

The Worcester Linux Users' Group (WLUG) was setup to provide a forum for local users of Linux, a freeware clone of the Unix operating system.

While Linux is, in many cases, equal or superior to commercial Unix and other operating systems, it has no centralized technical support structure. This is actually a positive thing as there are many, many individuals on the Internet willing to help. Many times solutions can be found without much effort by contacting various online Linux sources and newsgroups. There are many Internet resources catering toward Linux users and WLUG was formed to assist Linux users in the Central Massachusetts area by creating a local member support system.

WLUG members come from a variety of backgrounds and their Linux experience varies from the advanced to the novice. This mixture creates an enjoyable environment that enhances everyone's enjoyment of using Linux.

Meetings are designed around the members and are informal. For more information about WLUG, please contact Chuck Anderson.

If you live closer to Boston, or perhaps somewhere in New Hampshire, consider visiting some other regional Linux groups:

Boston Linux and Unix User Group

Chelmsford Linux Meetup Group

Greater New Hampshire Linux User's Group

The Linux Webring
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