An In-Depth Look: Real Time Microconference

Let’s resume our series of in-depth looks at the LPC 2014 Microconference lineup by discussing the Real Time microconference.

Ten years ago, many people asserted that it was not possible to achieve real-time latencies on a general-purpose OS such as Linux. This microconference will see some of OSADL’s long-term testing data that show just what Linux -rt is capable of. However, not everyone is content to run on bare metal, so there will be some discussions of the excellent progress that has been made getting real-time response from guest OSes. If you need more inspiration to improve your kernel regression tests, come listen to the progress towards using Linux for safety-critical applications.

This microconference will feature important discussions on other topics as well, including the new NO_HZ_FULL facility, scalability issues with reader-writer locks and mmap_sem, issues with various -rt trees, a readout from the invitation-only Real Time Mini-Summit, and Thomas’s views on the future of the -rt project. For more details, please see the LPC 2014 Wiki.

We hope to see you there!

(thanks to Paul McKenney for helping with this post)

Refereed Presentation Submissions Deadline Is Tomorrow, July 11

We would like to remind everyone that, if you still haven’t sent in your submission for refereed track presentations, you have until tomorrow, July 11 2014, 11:59PM CET. To submit your proposal please follow the instructions on our participate page. As usual if you have questions feel free to contact us.
We look forward to seeing you in Düsseldorf!

An In-Depth Look: File and Storage Systems Microconference

Welcome to today’s segment about our accepted LPC 2014 Microconferences.

This LPC 2014 microconference drives yet another nail in the coffin for the outdated idea that file and storage systems are a mature technology. Persistent memory technologies offer yet another profound increase in throughput and decrease in latency, which is forcing additional change in software layers that were architected long ago for the venerable disk drive’s seek and rotational latencies. However, the disk drives are changing as well, with the addition of shingled magnetic recording (SMR) drives (see this ZDNet article). SMR drives take advantage of the fact that read heads can be made quite a bit smaller than write heads by overlapping adjacent tracks. This permits random small-block reads, but it also means that updating any small block requires rewriting the entire set of overlapping tracks. Early devices are expected to hide this requirement in much the same way that memory sticks hide their erase blocks, but future devices are expected to allow more highly optimized access, which in turn will require changes to the file and storage system layers in the Linux kernel.

This microconference will feature important discussions on other topics as well, including new device-mapper features, additional support for userspace filesystems, huge filesystem block sizes, storage management, and more. Please see our LPC 2014 wiki for additional details.

Please join us at this discussion of exciting new technologies!

(thanks to Paul McKenney for the above text)

An In-Depth Look: Automotive Microconference

Welcome to the first write up in our new series of approved LPC 2014 Microconferences. Enjoy!

Although there are some of us old enough to remember a time when an automobile was primarily a mechanical artifact, these days it more closely resembles a datacenter on wheels. In fact, it has gotten to the point that many cars’ wires, taken together, are their third heaviest component, outweighed only by the chassis and the engine ( And so it is that we now have an Automotive microconference at the Linux Plumbers Conference.

This microconference will cover important topics including fast boot, using virtualization to allow embedded vehicle controllers and Linux-based applications to run on the same multicore CPU, diagnostics (including GENIVI diagnostic log and trace), use of networking (for example, to reduce wiring weight), interfacing Linux and automotive diagnostics, and user interaction (“Sorry, I cannot click “OK” now because I am driving, but show me the map!!!”). In addition, this microconference will feature a hackathon for developing applications to run on the Automotive Grade Linux (AGL) platforms.
Please see more about this microconference on the LPC 2014 wiki.

We hope to see you there!

(Paul McKenney contributed to the text above)

More Microconferences Approved for LPC 2014

We are pleased to announce that four new Microconferences were added to the Linux Plumbers Conference 2014 line up! They are: Automotive, File and Storage Systems, Network Management and Real Time. For more details please see the Topics Page on the LPC 2014 wiki. Congratulations!

Look for more postings with detailed descriptions of each Microconference.

We are still reviewing the current list of proposed Microconferences, and as usual, we would also like to remind you that there is still time to submit new topics. However the schedule is starting to fill up, and we might be able to accommodate only a few more Microconferences beyond the already proposed and accepted ones.

An In-Depth Look: Wireless Networking Microconference

Here is another in the series of LPC 2014 Microconferences in-depth write ups. Enjoy!

Wireless networking has long since become ubiquitous, and the Linux kernel is a major player for this technology, especially given the ability of many smartphones to connect to wireless networks (see This microconference will address a number of important topics, including WifiDisplay/Miracast, mac80211, bluetooth, near-field communications (NFC), 802.11 standards activity, and the ever-present userspace and management issues. If the past eight Linux wireless-networking gatherings are any guide, we should also expect spirited discussions of new standards, upcoming technologies, interfacing issues, and regulatory concerns. Note that this Microconference will happen in place of the Wireless Minisummit, that was held in the past few years.
For more information about the contents of the Wireless Microconference, please see our LPC 2014 wiki .

Please join us for an interesting discussion!

(Thanks to Paul McKenney for help with the text)

An In-Depth Look: Wayland Microconference

Welcome to a new installment of our series describing the LPC 2014 Microconferences.

The Wayland compositor is used in a variety of environments, ranging from automobiles to smartphones. Its usage is currently primarily in embedded environments, however, it is well on its way to enjoying broad desktop support. This increased interest from desktop environments is expected to drive part of the discussion, with topics including interaction with systemd, logind, and session management.

The goal of this microconference is to discuss these and other important topics, including drawing tablet protocol, input device calibration, privileged clients, socket-based Wayland activation, community window managers, wifi displays, and more. For more details see our LPC 2014 wiki page on Wayland.

Please join us for a timely and important discussion!

(Thanks to Paul McKenney for this text)

An In-Depth Look: Network Virtualization And Security Microconference

Welcome to the second installment of our LPC 2014 Microconferences in-depth series.

The topic of network security has sparked considerable excitement over the past few weeks (see the Heartbleed Bug), but this microconference takes things one step farther from network security to network virtualization and security. The addition of virtualization adds significant security considerations. For example, as the configuration changes, ACLs need corresponding changes in order to continue to enforce the abstract security policy.

This microconference will feature important discussions on a variety of topics, including network virtualization performance and scalability, packet-level security, hardware offload, inside-job DoS attacks, configuration security, and more. For more details refer to the LPC 2014 Wiki.

We look forward to seeing you there!

(Thanks to Paul McKenney for contributing to this post)

An In-Depth Look: Containers Microconference

Welcome to a series of posts providing a more detailed look at our LPC 2014 Microconferences.

The topic of containers has sparked considerable excitement over the past year. At least some of this excitement stems from the extremely lightweight virtualization that containers can provide. However, there are still a number of areas in need of attention (see LWN article “Seven problems with Linux containers“). Parties interested in providing the needed attention include LXC, CoreOS, OpenVZ, LMCTFY, docker, and perhaps most flamboyantly, systemd.

The goal of this microconference is to get these diverse groups together to discuss the long-standing issue of cgroup hierarchy redesign (see LWN articles “[HEADSUP] cgroup changes” and “The evolution of control groups“), but also to discuss interaction with filesystems, networking, checkpoint/restore (CRIU), “application container” standardization, interactions with docker (including libcontainer and machinectl), container migration, load balancing, failover, and more.

More details about the containers microconference can be found in the wiki.

Please join us for a timely and important discussion!
(Thanks to Paul McKenney for contributing to this post)

First Set of Microconferences Approved for LPC 2014

The LPC 2014 committee has started reviewing and approving this year’s Microconferences Proposals. The approved microconferences so far are Containers, Wayland, Network Virtualization and Security, and Wireless Networking. For details on each of the approved microconferences and the currently pending proposals, please see the LPC 2014 wiki .

We are still reviewing the current set of proposals, expect new microconferences approvals soon. In addition, we would like to remind you that there is still time to submit additional microconference proposals by following the instructions in the Participate page. Although there is no hard deadline for microconferences proposals to be submitted (in order to accommodate late breaking developments and discussions topics) we would like to finalize much of the schedule in July, to give participants enough time to make travel arrangements.

As always, if you have any questions, you can contact us at contact at lists dot linuxplumbersconf dot org