Real Time Presentations

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librtpi: Conditional Variables for Real-Time Applications [ELC 2020]

Presenter: Gratian Crisan, National Instruments
Summary: This presentation talks about real-time concepts,
conditional variables and monitors, problems with
conditional variable in libpthread ,Librtpi
(re)implementation of condvars.

Linux on Quick Turnaround Projects at Ball: No, We Aren't Putting Linux in Canning Jars [ELC 2018]

Presenter: Sam Povllus, Ball Aerospace
Summary:This Presentation will focus on the aspects of making Linux
work with an FPGA, as well as how various hardware and software decisions
were reached and how those decisions affected aspects of integration with
hardware, and maintenance.

Steering Xenomai into the Real-Time Linux Future [ELC 2018]

Presenter: Jan Kiszka, Siemens AG
Summary: This will present plans and first steps to revive the Xenomai
community, make it broader and stronger. This involves scaling
down the project scope to a maintainable core.

Maintaining a Real Time Stable Kernel [ELC 2018]

Presenter: Steven Rostedt, VMware
Summary: These slides will present what is required to maintain a stable RT tree,
such as tools that you can use. What tricks can be done with git to find
properly backport patches that are RT specific.

What Every Driver Developer Should Know about RT [ELC 2018]

Presenter: Julia Cartwright, National Instruments
Summary: The intent of this presentation is to describe the classes
of problems in drivers which have detrimental impact to RT,
why they cause issues on RT, and how they might be resolved.

Not Really, but Kind of Real Time Linux [ELC 2018]

Presenter: Sandra Capri, Ambient Sensors
Summary: These slides will illustrate what kernel configurations worked,
and how kernel space code compared to user space code.

CPU Power Saving Methods for Real-time Workloads [ELC 2018]

Presenter: Ramesh Thomas, Intel
Summary: The presentation will give a background of the issues faced by
real-time applications when CPU power management is enabled.
It will then explain tools, configurations and methods that
can be used to tune applications and CPU power management in the
kernel.

Effectively Measure and Reduce Kernel Latencies for Real-time Contraints [ELC 2017]

Presenter: Jim Huang, South Star Xelerator (SSX)
Summary: This presentation provides information of the effective ways to
experiment the different methods, in terms of their response latency,
and figure out how the system load, and user space task priorities affect
them on both Intel and ARM architectures.

Building Mixed Criticality Linux Systems with the Jailhouse Hypervisor [ELC 2017]

Presenter: Ralf Ramsauer, Technical University of Applied Sciences Regegnsburg
Summary: This presentation provides information about porting a safety
and real-time critical existing application as a Jailhouse guest.

Timekeeping in the Linux Kernel [ELC 2017]

Presenter: Stephen Boyd, Qualcomm Innovation Center
Summary: This presentation provides information about timekeeping code,
exploring how the kernel abstracts the hardware, how those abstractions
are built upon to implement NOHZ, timers, hrtimers, cpu-idle, POSIX clocks, etc.

Real-Time Linux on Embedded Multicore Processors [ELC 2017]

Presenter: Andreas Ehmanns, Technical Advidor
Summary: This presentation gives idea about vanilla kernel and describes
real-time multicore system. Based on tests running on a 8-core
and a 24-core hardware system presenter discuss each single step,
it's effect on real-time behaviour.

OpenEmbedded in the Real World [ELC 2016]

Presenter: Scott Murray, Konsulko Group
Summary: This presentation provides information about implementing
OpenEmbedded in a production build system and issues associated
with shipping and maintaining an OpenEmbedded based product.

Understanding a Real-Time System [ELC 2016]

Presenter: Steven Rostedt, Red Hat
Summary: This presentation provides information about different aspects
of real-time system such as hardware and firmware, followed by
the kernel, the libraries used, and special constraints for applications.

Practical Real-Time Linux [ELC 2015] [ELCE 2015]

Presenter: Arnout Vandecappelle, Essensium/Mind
Summary: This presentation describes practical real-time Linux with Xenomai
and PREEMPT_RT.

POWERLINK over Xenomai [ELCE 2015]

Presenter: Pierre Ficheux, Open Wide
Summary: These slides gives information about industrial bus, POWERLINK ,
Linux and RT (PREEMPT- RT, Xenomai).
Also discuss problems , tests and results.

Using Real-Time Patch with LTSI Kernel [ELC 2014]

Presenter: Yoshitake Kobayashi, Toshiba
Summary: This presentation shows requirement and issues to make LTSI-RT patch.

Enhancing Real-Time Capabilities with the PRU [ELCE 2014]

Presenter: Ron Birkett, Texas Instruments
Summary: This presentation discusses about what is real-time and PRU hardware overview.

Real Safe Times in the Jailhouse Hypervisor [ELCE 2014]

Presenter: Jan Kiszka, Siemens
Summary: This presentation provides information about Jailhouse hypervisor,
it's features and simplicity, architecture support and application development.

rtmux: A Thin Multiplexer To Provide Hard Realtime Applications For Linux [ELCE 2014]

Presenter: Jim Huang, ITRI
Summary: This presentation explains how to build lightweight real-time
environment for Linux/ARM, also discusses about RTMux and Linux-friendly
remote communication mechanism.

Using and Understanding the Real-Time Cyclictest Benchmark [ELC 2013] [ELCE 2013]

Presenter: Frank Rowand, Sony Network Entertainment
Summary: This talk explores and explains the complexities of Cyclictest.
Also provides information about how Cyclictest describe potential
real-time performance of a system.

Understanding PREEMPT_RT (The Real-Time Patch) [ELC 2013]

Presenter: Steven Rostedt, RedHat
Summary: This talk will explain what the real time patch provides and
special programming tips that will ensure embedded developers
will get the best from their devices.

Common Clock Framework: How to Use It [ELC 2013]

Presenter: Gregory Clement, Free Electrons
Summary: This presentation provides an introduction on why we needed
Common clock framework and on the problems it solves, the
implementation details of this framework.

Making Linux do Hard Real-Time [ELC 2013]

Presenter: Brent Roman, Monterey Bay Aquarium Research Institute
Summary: This presentation gives information about real-time system
along with practical examples.

An Essential Relationship between Real-time and Resource Partitioning [ELCE 2013]

Presenter: Yoshitake Kobayashi
Summary: This presentation explains the requirements of real-time system,
what is hardware resource partitioning and issues to implement
resource partitioning.

Real Time (BoFs) [ELC 2012]

Presenter: Frank Rowand, Sony Network Entertainment
Summary: This session provides a forum to discuss Real Time Linux,
share how you are using it.Also talks about PREEMPT_RT
patch size, its current version, stable tree and various RT features.

Understanding PREEMPT_RT (The Real-Time Patch) [ELCE 2012]

Presenter: Steven Rostedt, Red Hat
Summary: This presentation provides information about real-time os, kernel preemption
and PREEMPT_RT patch. Also discuss menuconfig options available.

Real-Time Linux in Industrial Appliances [ELCE 2012]

Presenter: Martin Bis, BIS
Summary: These slides provide information about usage of linux in
embedded enviroment, practical cases and also about driver design.

Identifying Embedded Real-Time Latency Issues: I-Cache and Locks [ELC 2011]

Presenter: Frank Rowand (Sony)
Summary: This presentation provides information about the black art,
providing insights into the impact of I-cache
and locks real-time latency on an SMP ARM embedded system.

RT-Preempt: What's The State and Why There is No Roadmap [ELC 2011]

Presenter: Thomas Gleixner (linutronix)
Summary: This presentation discusses the development status of RT-Preempt
and also about the issues in existing mainline.

Solving Real-Time Scheduling Problems with RT_PREEMPT and Deadline-Based Scheduler [ELC 2011]

Presenter: Xi Wang (Broadcom)
Summary: This presentation explains meeting real-time requirements of
both VoIP and packet forwarding tasks by modifying Linux
prority with RT_PREEMPT.

How Linux PREEMPT_RT Works [ELCE 2011]

Presenter: Frank Rowand (Sony)
Summary: This presentation enumerates some of the design choices and
implementation that enable Linux PREEMPT_RT_FULL real time and
the resulting performance implications.

Effective Use of RT-Preempt [ELC 2010]

Presenter: Kevin Dankwardt
Summary: This talk will guide developers interested in making use of the
rt-preempt effort. Also provides information about kernel configuration,
comparison of preemption features, use of priority inheritance, ISRs and priority scheduling.

Multi-core Scheduling Optimizations for Soft Real-time Multi-threaded Applications -- A Cooperation Aware Approach [ELC 2010]

Presenter: Lucas Martins De Marchi
Summary: These slides give information about parallel programming paradigm and
multi-core scheduling optimizations for soft Real-time system.

Measuring Responsiveness of Linux Kernel on Embedded System [ELC 2010]

Presenter: YungJoon Jung and DongHyouk Lim
Summary: This presentation gives information about RT responsiveness measurement,
related measurement methods and supporting measurement tool.

Real-Time Linux Failure [ELC 2010]

Presenter: Frank Rowand
Summary: Real-time Linux is very capable, but as with the other real-time
unix kernels there are many ways to fail when attempting to create a
real-time Linux solution. This presentation probes some causes of failure that can be avoided.

Identifying Embedded Real-Time Latency Issues: I-Cache and Locks [ELCE 2010]

Presenter: Frank Rowand
Summary: This talk explores the black art, providing insights into the impact of I-cache and locks
on real-time latency on an SMP ARM embedded system. Some signatures of I-cache and lock issues
and alternative approaches to investigate latency have been discussed.

Musings on analysis of measurements of a real-time workload.[ELC 2009]

Presenter: Frank Rowand
Summary: This talk examines some statistics that may be interesting and
useful for examining soft real-time applications.

Using Real-Time Linux [ELC 2008]

Presenter: Klaas van Gend
Summary: This presentation provides information about Real-time Linux
and its key elements.

Real-Time Linux BOF [ELC 2008]

Presenter: YungJoon Jung
Summary: This presentation discusses about current Real-time testing methods.

Real-Time Virtualization Solutions for Linux - A Comparison of Strategies [ELC 2008]

Presenter: Nicholas McGuire
Summary:

Adventures in real-time performance tuning, part 1 [ELCE 2008]

Presenter: Frank Rowand
Summary: This presentation provides an example of performance tuning for MIPS target boards.

Adventures in real-time performance tuning, part 2 [ELCE 2008]

Presenter: Frank Rowand
Summary: This presentation provides information related to strategies and
tactics for performance tuning. And also gives examples of tuning.

Realtime BOF - Realtime Preempt Patch Adaptation Experience (including Commercial Product) [ELC 2007]

Presenter: YungJoon Jung
Summary: This presentation talks about real-time preemption patch and related
experience.

Detection & Resolution of Real Time Issues Using TimeDoctor [ELCE 2007]

Presenter: Francois Audeon
Summary: This presentation provides information about TimeDoctor, it's features and
setup on Linux based embedded system and some example use cases.

Linux for Cell/B.E. and PS3, Related Open Source Projects BoF [ELCE 2007]

Presenter: Hiroyuki Machida
Summary: This presntation provides information about Cell Broadband Engine,
status of Linux Distro, cell performance and about SPE programming
and variious OSS activities.

RT Patch for Celleb - Patch Status and Performance Measurements [ELCE 2007]

Presenter: Tsutomu Owa
Summary: These slides give information about realtime-preempt patch(RT patch)
and about RT patch status for Celleb/PowerPC64.

Assessment of the Realtime Preemption Patches (RT-Preempt) and their impact on the general purpose performance of the system [ELCE 2007]

Presenter: Arthur Siro
Summary: This presentation discusses about how good is RT-Preempt with respect to the worst-case latency,
and also about how expensive is RT-Preempt with respect to a possible performance degradation of the system.