Open Source Summit Europe

Docker?!?! But I am a SysAdmin!

December 21, 2019

Your developers just walked into your cube and said "here's the new app, I built it with Docker, and it's ready to go live". What do you do next? In this session we'll talk about what containers are a …

Don't Break Production

December 21, 2019

Gluster is a project that provides software-defined storage for a wide range of use-cases. Given the wide range of options, there are some combinations of options which we break during an upgrade inad …

Linux Storage System Bottleneck for eMMC/UFS

December 21, 2019

The storage device is considered a bottleneck to the system I/O performance. This thinking drives the need for faster storage device interfaces. Commonly used flash based storage interfaces support hi …

Mixing cgroupfs v1 and cgroupfs v2: Finding Solutions for Container Runtimes

December 21, 2019

With the release of kernel 4.5 the new cgroupfs v2 API was declared non-experimental. But the missing feature parity between cgroupfs v2 with cgroupfs v1 makes it nearly impossible for container runti …

printk() - It's Old, What Can We Do to Make It Young Again?

December 21, 2019

printk() has been the tool for debugging the Linux kernel and for being the display mechanism for Linux as long as Linux has been around. It's the first thing one sees as the life of the kernel begins …

Working on an Opensource Project - Learnings from Development - Shuva Kar, Cisco Systems (India) Private Limited &

December 21, 2019

OpenDaylight community is growing but contributions in some ares/pockets are still on the lower side. The biggest factor is lack of knowledge on how to contribute to an open source project in general …

Container Orchestration: The State of Play

December 20, 2019

As containers continue to disrupt the IT and Cloud industries competition continues to increase for container technologies and especially container and infrastructure orchestration. In this talk we w …

Death of the ESB: 10 Pitfalls in the Trasition to Cloud-Native Integration

December 20, 2019

As we move from an ESB world to an API focused microservices world, the need for integration does not go away. In fact, it is arguably far more important today than ever. Based on customer engagements …

Documentation Sprints: Involving the Community and Getting It Done

December 20, 2019

Documentation does not have to be a slow, arduous and lonely task. Similar to collaborative code sprints, a documentation sprint is an intensive and tightly focused content creation session to write …

Everything You Always Wanted to Know About Object Storage

December 20, 2019

The rapid growth of unstructured data is fueling the need for a next generation storage thats flexible, economical, and scalable enough to handle the petabytes of data being created every day. Object …

New GPIO Interface for User Space

December 20, 2019

Since linux 4.8 the GPIO sysfs interface is deprecated. Due to its many drawbacks and bad design decisions a new user space interface has been implemented in the form of the GPIO character device whic …

QEMU in UEFI

December 20, 2019

UEFI is a firmware specification created by Intel with portability in mind. The UEFI way of doing that was to provide special UEFI byte code (EBC). Unfortunately nobody really cared so compiler, firmw …

Replacing the Radix Tree

December 20, 2019

Last year I gave a talk extolling the benefits of the Linux radix tree. This year I am talking about its shortcomings, what I did to improve things, and how I came to the conclusion that it had to be …

Reproducible Builds - We Made Lots of Progress in Many Places, But We're Still Far From Our Goals of Changing the (Software) World

December 20, 2019

Reproducible builds enable everyone to verify that a given binary is made from the source it is claimed to be made from, by enabling anyone to create bit by bit identical binaries. This talk will rep …

Self-Healing Networkings: Responding to Your Network in Real Time

December 20, 2019

Self-healing infrastructure and automated remediation are hot topics in today's world, but they're rarely discussed in the context of networks. When they are, it's rarely in an open source–or even pr …

Helping Users Maximize VM Performance

December 19, 2019

QEMU supports numerous options to fine tune the virtual machine, starting from the big items such as number of CPUs, NUMA nodes or amount of memory all the way down to the choice of USB controllers, d …

Identifying and Supporting 'X-compatible' Hardware Blocks

December 19, 2019

An SoC is comprised of multiple IP blocks from various vendors. In some cases the sources or models of these hardware blocks are not documented or marketed by the SoC vendor. Nevertheless, there are o …

Integration of Flexible Storage with the API of Gluster

December 19, 2019

No matter where an application is running, it will most likely need some form of storage. Gluster is a distributed scale-out filesystem that offers interfaces for many different use-cases and workload …

Open Innovation: What Companies Can Learn from Open Source Communities

December 19, 2019

You may know that the best way to have a good idea is to have a lot of ideas. You cant expect to have the right idea on your own, so having different points of view on your project becomes essenti …

Replace Your Exploit-Ridden Firmware with Linux - Ronald Minnich, Google

December 19, 2019

With the WikiLeaks release of the vault7 material, the security of the UEFI (Unified Extensible Firmware Interface) firmware used in most PCs and laptops is once again a concern. UEFI is a proprietary …

System Containers

December 19, 2019

The last couple of years have seen an increased interest in container-related technologies. When people speak of containers they usually mean process containers. They often view a container as being m …

Zero-Copy Video Streaming on Embedded Systems the Easy Way

December 19, 2019

More and more graphics and video processing units of embedded SoCs are supported by drivers that are developed in the open as free software. This makes it easier than ever to build interesting hardwar …

Bringing Multi-Container to Constrained Devices: The Case of the IoT Gateway

December 18, 2019

Containerization has been driving the scene in cloud technology, but it stretches far beyond the cloud domain. In fact, the AGILE project develops a container based open software framework for IoT gat …

Lab: Linux Container Internals

December 18, 2019

Have you ever wondered how Linux containers work? How they really work, deep down inside? Questions like: How does sVirt/SELinux, SECCOMP, namespaces, and isolation really work? How does the Docker Da …

Open Source Beyond Software

December 18, 2019

The phrase 'Open Source', to many people, means 'software you don't have to pay for'but actually it's much more than that. It's a way of thinking and working focused on transparency and collaborating …

Open Source is Just About the Source, Isn't It?

December 18, 2019

Your project's code base is rock solid, you are rolling releases early and often, your test suite is comprehensive and running regularly, your code is well performing without any glitches. Everything …

seccomp(2) vs pledge(2)

December 18, 2019

seccomp is a computer security facility in the Linux kernel, pledge is a similar security facility in the OpenBSD kernel. In this presentation Giovanni Bechis will review the development story and pro …

The Empire Strikes Back - We Just Need an Emperor

December 18, 2019

The immense success of Linux in the commercial space stems from many factors: its open source nature, extensibility, availability, lower cost, higher security - and the fact it has a Benevolent Dictat …