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All Linux lovers, and supporters of open source code and free software, in the Kanto area (or anywhere else) are invited to attend the next Tokyo Linux Users Group meeting. Membership is open to anyone. There are currently no membership dues or entrance fees.

TLUG meetings are traditionally small and unstructured (VERY CASUAL). Most of the benefit of the meeting comes from chatting with other Linux users and having informal discussions.

As a general rule, the Technical Meetings are held on the 2nd Saturday of odd-numbered months and the Nomikai Meetings are usually held on the 2nd Friday of even-numbered months. There are, of course, exceptions to this rule, so it is best to keep an eye on the mailing list, or check back here for date/venue changes as the date approaches.

Technical Meeting


September 12, 2015 (Saturday)




IIJ (Internet Initiative Japan)
Iidabashi Grand Bloom
2-10-2 Fujimi
Chiyoda-ku, Tokyo 102-0071


  • Wait at the reception in the office entrance lobby in the 2F
  • We will all go together to the room at 13:30
  • If you arrive after that phone Edward to be let in Ph. 090 3689 0292


Coroutines (by Benjamin Kowarsch)

Coroutines are a multi-threading model that is a highly scalable alternative to preemptive threads. There is an interesting paper called "Revisiting Coroutines" by De Moura and Ierusalimschy of the Polytechnic University of Rio de Janeiro, and of Lua fame.

This paper was the basis to redesign coroutines in Modula-2. Benjamin will show how coroutines differ from preemptive threads and what kind of support there is in different languages.

PostgreSQL 9.4, 9.5 and Beyond (by Satoshi Nagayasu)

Recently, PostgreSQL has succeeded in getting popularity among web developers. In this talk, Satoshi will introduce the new features in the latest release 9.4 (JSON, Analytics, Logical Decoding, etc.) to take advantages of the latest PostgreSQL advancement, and share a quick look in the upcoming release 9.5. And he will also introduce his personal projects around PostgreSQL.


After the presentations we will go for drinks somewhere around Iidabashi Station.

Other items on the agenda
  1. Introduction of new members
  2. News about Linux/Open Source, general announcements, Q&A
  3. Auction (bring any gear that would would like to donate to TLUG)

Contact Info

For directions or information before the meeting, call:

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