This document provides guidance on upstreaming code to the Linux kernel community. It emphasizes that upstreaming requires both technical and social skills. Developers should release code early and often to get feedback, iterate on designs, and fix issues. Good code avoids unnecessary abstraction and reinvention, solves common problems, and has well-designed APIs. The community consists of experienced developers who want to help. Upstreamers should be patient, respectful, and ask for help when needed. Releasing code early allows issues to be identified and addressed before formal submissions.
Towards a Census of Free and Open Source Licensesdmgerman
What are the most used licenses in the Free and Open Source Software
(FOSS) world? In this presentation I will describe the methodological
challenges of answering this question, and describe the results of a
study that attemps to address these challenges based upon two proxies:
the software projects included in FOSS distributions, and the
repositories of FOSS projects.
Distributed Version Control systems (DVCs) are replacing centralized version systems (CVCs). Our research is trying to uncover the way that DVCs are being used, and how its use differs from CVCs. For the last 23 months we have been mining Linux git repositories in an attempt to understand how they use their DVCs (git). I will describe the challenges of this mining, and provide an overview of how linux uses DVCs.
Kernel Recipes 2017 - Testing on device with LAVA - Olivier CrêteAnne Nicolas
Continous integration has gained a lot of popularity in the open source world in recent years, with the loud/web world at the forefront. The kernel world has however been somewhat slow to catch-up, especially in the embedded world, services like KernelCi and the 0-day are incredibly useful services once patches are flowing upstream but are limited in their scope.
In this talk we’ll go over how CI best practices can be used when doing kernel development, and how with a little bit of infrastructure and tooling one can setup a “mini-kernelci” to run tests relevant to the current development on actual embedded hardware.
Sjoerd SimonsOlivier Crête
Towards a Census of Free and Open Source Licensesdmgerman
What are the most used licenses in the Free and Open Source Software
(FOSS) world? In this presentation I will describe the methodological
challenges of answering this question, and describe the results of a
study that attemps to address these challenges based upon two proxies:
the software projects included in FOSS distributions, and the
repositories of FOSS projects.
Distributed Version Control systems (DVCs) are replacing centralized version systems (CVCs). Our research is trying to uncover the way that DVCs are being used, and how its use differs from CVCs. For the last 23 months we have been mining Linux git repositories in an attempt to understand how they use their DVCs (git). I will describe the challenges of this mining, and provide an overview of how linux uses DVCs.
Kernel Recipes 2017 - Testing on device with LAVA - Olivier CrêteAnne Nicolas
Continous integration has gained a lot of popularity in the open source world in recent years, with the loud/web world at the forefront. The kernel world has however been somewhat slow to catch-up, especially in the embedded world, services like KernelCi and the 0-day are incredibly useful services once patches are flowing upstream but are limited in their scope.
In this talk we’ll go over how CI best practices can be used when doing kernel development, and how with a little bit of infrastructure and tooling one can setup a “mini-kernelci” to run tests relevant to the current development on actual embedded hardware.
Sjoerd SimonsOlivier Crête
Session ID: SFO17-TR01
Session Name: Philosophy of Open Source
- SFO17-TR01
Speaker: Daniel Lezcano
Track:
★ Session Summary ★
What is the history and culture of Open Source?
New to Open Source? Always wondered why certain tools and processes are in place? Our presenters have experienced the good, bad and ugly of working with Open Source software and will share their wisdom and hard won tips.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/sfo17/sfo17-tr01/
Presentation:
Video:
---------------------------------------------------
★ Event Details ★
Linaro Connect San Francisco 2017 (SFO17)
25-29 September 2017
Hyatt Regency San Francisco Airport
---------------------------------------------------
Keyword:
http://www.linaro.org
http://connect.linaro.org
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://twitter.com/linaroorg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
Analysis and Exploiting Windows and Linux SecurityShubham Dubey
Recent Ransomware attack on may 2017 has put different IT professional on doubt that wheather is it still secure to use Windows operating system on production enviornment or they have to start looking at its alternative linux based operating system as replacement. The people of linux community are happy that they didn't get affected by this large scale Wannacry Ransomware attack but inside the community a discussion is still on that Did this type of attack can also happen in linux based os?
Grokking Techtalk #39: Gossip protocol and applicationsGrokking VN
Gossip là một giao thức trao đổi thông tin phổ biến trong các hệ thống phân tán giúp cho các máy chủ duy trì trạng thái đồng nhất với nhau cũng như thực hiện các nhiệm vụ có chủ đích. Điểm mạnh của nó là khả năng phát tán thông tin ở tốc độ cao cũng như không hề có single point of failure. Trong bài talk này, Anh Nguyễn Anh Tú, thành viên của Grokking sẽ chia sẻ một số thông tin về giao thức Gossip cũng như điểm qua một vài ứng dụng thực tiễn của nó.
- Về diễn giả: Anh Nguyễn Anh Tú hiện đang là Staff Software Engineer tại Axon Vietnam, đồng thời là thành viên của Grokking Vietnam.
Kernel Recipes 2017 - The state of kernel self-protection - Kees CookAnne Nicolas
The Kernel Self-Protection Project focuses on addressing gaps in Linux’s defensive technologies. With Linux reaching into every corner of modern life, and userspace frequently being very locked-down, the kernel has become an ever-increasing target for attackers and much more needs to be done to harden the kernel so it can protect itself. A quick overview will be shown of what we’re trying to protect Linux against, as well as the state of the art in available technologies. Also presented will be a summary of the last year’s participation by many people over a wide range of technologies, with a review of KSPP attempts, accomplishments, active efforts, and an examination of future projects and goals.
Kees Cook, Google
.NET Core Summer event 2019 in NL - War stories from .NET team -- Karel ZikmundKarel Zikmund
.NET Core Summer event, 2019 in Veenendaal, NL - 2019/6/22
Talk: War stories from .NET team by Karel Zikmund
https://www.dncse.nl/sessions/session2-3-2/
NDC Oslo 2019 - War stories from .NET team -- Karel ZikmundKarel Zikmund
NDC Oslo 2019 conference in Oslo, NO - 2019/6/21
Talk: War stories from .NET team by Karel Zikmund
https://sessionize.com/s/karel-zikmund/war-stories-from-.net-team/24172
https://www.youtube.com/watch?v=ntGBRi_I3MM
Kernel Recipes 2015: How to choose a kernel to ship with a productAnne Nicolas
It’s often difficult to select a kernel for products that are shipped to customers. Several branches exist, bugs need to be avoided as much as possible and updates must be rare enough not to upset customers. All this must be true during all the product’s lifecycle. This presentation will show how the quality of stable kernels evolves over time and when it’s best to pick them and how to help improve them.
Willy Tarreau, HAProxy Technologies
SFO15-TR2: Upstreaming 101
Speaker: Daniel Thompson
Date: September 22, 2015
★ Session Description ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
★ Resources ★
Video:
Presentation: http://www.slideshare.net/linaroorg/sfo15tr2-upstreaming-101
Etherpad: pad.linaro.org/p/sfo15-tr2
Pathable: https://sfo15.pathable.com/meetings/302927
★ Event Details ★
Linaro Connect San Francisco 2015 - #SFO15
September 21-25, 2015
Hyatt Regency Hotel
http://www.linaro.org
http://connect.linaro.org
An introduction to how the Linux kernel works: maintianers, scaling trust, and no regressions. This talk also gives tips to people who want to get involved with Linux kernel development, either through reporting bugs, reviewing code, or developing code.
LAS16-TR02: Upstreaming 101
Speakers: Shawn Guo, Daniel Thompson
Date: September 27, 2016
★ Session Description ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-tr02
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-tr02/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
HKG15-901: Upstreaming 101
---------------------------------------------------
Speaker: Matt Porter
Date: February 10, 2015
---------------------------------------------------
★ Session Summary ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
--------------------------------------------------
★ Resources ★
Pathable: https://hkg15.pathable.com/meetings/250795
Video: https://www.youtube.com/watch?v=TMtcUmRm6yU
Etherpad: N/A
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2015 - #HKG15
February 9-13th, 2015
Regal Airport Hotel Hong Kong Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
Building Better FLOSS Community Relationships @ FBDavide Cavalca
This talk will cover the work Facebook has done to become more involved with various upstream open source communities. We will start with why we believe it's important for companies to build strong relationships with the communities around the software they use - particularly in infrastructure. Next we will look at the steps we took to become better community citizens and finally we will discuss some case studies.
Specifics covered will include various projects we've contributed to, technical work such as back-porting various OS components from Rawhide to CentOS 7, benefits we've received and lessons learned.
Session ID: SFO17-TR01
Session Name: Philosophy of Open Source
- SFO17-TR01
Speaker: Daniel Lezcano
Track:
★ Session Summary ★
What is the history and culture of Open Source?
New to Open Source? Always wondered why certain tools and processes are in place? Our presenters have experienced the good, bad and ugly of working with Open Source software and will share their wisdom and hard won tips.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/sfo17/sfo17-tr01/
Presentation:
Video:
---------------------------------------------------
★ Event Details ★
Linaro Connect San Francisco 2017 (SFO17)
25-29 September 2017
Hyatt Regency San Francisco Airport
---------------------------------------------------
Keyword:
http://www.linaro.org
http://connect.linaro.org
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://twitter.com/linaroorg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
Analysis and Exploiting Windows and Linux SecurityShubham Dubey
Recent Ransomware attack on may 2017 has put different IT professional on doubt that wheather is it still secure to use Windows operating system on production enviornment or they have to start looking at its alternative linux based operating system as replacement. The people of linux community are happy that they didn't get affected by this large scale Wannacry Ransomware attack but inside the community a discussion is still on that Did this type of attack can also happen in linux based os?
Grokking Techtalk #39: Gossip protocol and applicationsGrokking VN
Gossip là một giao thức trao đổi thông tin phổ biến trong các hệ thống phân tán giúp cho các máy chủ duy trì trạng thái đồng nhất với nhau cũng như thực hiện các nhiệm vụ có chủ đích. Điểm mạnh của nó là khả năng phát tán thông tin ở tốc độ cao cũng như không hề có single point of failure. Trong bài talk này, Anh Nguyễn Anh Tú, thành viên của Grokking sẽ chia sẻ một số thông tin về giao thức Gossip cũng như điểm qua một vài ứng dụng thực tiễn của nó.
- Về diễn giả: Anh Nguyễn Anh Tú hiện đang là Staff Software Engineer tại Axon Vietnam, đồng thời là thành viên của Grokking Vietnam.
Kernel Recipes 2017 - The state of kernel self-protection - Kees CookAnne Nicolas
The Kernel Self-Protection Project focuses on addressing gaps in Linux’s defensive technologies. With Linux reaching into every corner of modern life, and userspace frequently being very locked-down, the kernel has become an ever-increasing target for attackers and much more needs to be done to harden the kernel so it can protect itself. A quick overview will be shown of what we’re trying to protect Linux against, as well as the state of the art in available technologies. Also presented will be a summary of the last year’s participation by many people over a wide range of technologies, with a review of KSPP attempts, accomplishments, active efforts, and an examination of future projects and goals.
Kees Cook, Google
.NET Core Summer event 2019 in NL - War stories from .NET team -- Karel ZikmundKarel Zikmund
.NET Core Summer event, 2019 in Veenendaal, NL - 2019/6/22
Talk: War stories from .NET team by Karel Zikmund
https://www.dncse.nl/sessions/session2-3-2/
NDC Oslo 2019 - War stories from .NET team -- Karel ZikmundKarel Zikmund
NDC Oslo 2019 conference in Oslo, NO - 2019/6/21
Talk: War stories from .NET team by Karel Zikmund
https://sessionize.com/s/karel-zikmund/war-stories-from-.net-team/24172
https://www.youtube.com/watch?v=ntGBRi_I3MM
Kernel Recipes 2015: How to choose a kernel to ship with a productAnne Nicolas
It’s often difficult to select a kernel for products that are shipped to customers. Several branches exist, bugs need to be avoided as much as possible and updates must be rare enough not to upset customers. All this must be true during all the product’s lifecycle. This presentation will show how the quality of stable kernels evolves over time and when it’s best to pick them and how to help improve them.
Willy Tarreau, HAProxy Technologies
SFO15-TR2: Upstreaming 101
Speaker: Daniel Thompson
Date: September 22, 2015
★ Session Description ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
★ Resources ★
Video:
Presentation: http://www.slideshare.net/linaroorg/sfo15tr2-upstreaming-101
Etherpad: pad.linaro.org/p/sfo15-tr2
Pathable: https://sfo15.pathable.com/meetings/302927
★ Event Details ★
Linaro Connect San Francisco 2015 - #SFO15
September 21-25, 2015
Hyatt Regency Hotel
http://www.linaro.org
http://connect.linaro.org
An introduction to how the Linux kernel works: maintianers, scaling trust, and no regressions. This talk also gives tips to people who want to get involved with Linux kernel development, either through reporting bugs, reviewing code, or developing code.
LAS16-TR02: Upstreaming 101
Speakers: Shawn Guo, Daniel Thompson
Date: September 27, 2016
★ Session Description ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-tr02
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-tr02/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
HKG15-901: Upstreaming 101
---------------------------------------------------
Speaker: Matt Porter
Date: February 10, 2015
---------------------------------------------------
★ Session Summary ★
This session is an introductory course on Linux kernel upstreaming fundamentals. The course covers the definition the Linux mainline kernel tree as well as the maintainer hierarchy and processes used to contribute software into the mainline kernel. Special focus is given to understanding what documentation will help understand the process and mechanics in more detail while breaking the workflow into the various steps of upstreaming software patches. The target audience is both software engineers and engineering managers preparing to upstream software into the kernel. The topic requires a solid background in software configuration management terminology and the git SCM tool as well as a good technical understanding of the Linux kernel itself.
--------------------------------------------------
★ Resources ★
Pathable: https://hkg15.pathable.com/meetings/250795
Video: https://www.youtube.com/watch?v=TMtcUmRm6yU
Etherpad: N/A
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2015 - #HKG15
February 9-13th, 2015
Regal Airport Hotel Hong Kong Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
Building Better FLOSS Community Relationships @ FBDavide Cavalca
This talk will cover the work Facebook has done to become more involved with various upstream open source communities. We will start with why we believe it's important for companies to build strong relationships with the communities around the software they use - particularly in infrastructure. Next we will look at the steps we took to become better community citizens and finally we will discuss some case studies.
Specifics covered will include various projects we've contributed to, technical work such as back-porting various OS components from Rawhide to CentOS 7, benefits we've received and lessons learned.
Getting started contributing to Apache SparkHolden Karau
Are you interested in contributing to Apache Spark? This workshop and associated slides walk through the basics of contributing to Apache Spark as a developer. This advice is based on my 3 years of contributing to Apache Spark but should not be considered official in any way.
Session ID: SFO17-TR02
Session Name: Upstreaming 101
- SFO17-TR02
Speaker: Daniel Lezcano
Track:
★ Session Summary ★
Introduction to the mechanics and norms of upstreaming
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/sfo17/sfo17-tr02/
Presentation:
Video:
---------------------------------------------------
★ Event Details ★
Linaro Connect San Francisco 2017 (SFO17)
25-29 September 2017
Hyatt Regency San Francisco Airport
---------------------------------------------------
Keyword:
http://www.linaro.org
http://connect.linaro.org
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://twitter.com/linaroorg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
This is a presentation that Richard Mateosian gave to the STC-Silicon Valley chapter in November 2015. To learn more, see http://www.stc-siliconvalley.org.
Source Control with Domino Designer 8.5.3 and Git (DanNotes, November 28, 2012)Per Henrik Lausten
See my blog post about the presentation:
http://per.lausten.dk/blog/2012/11/source-control-with-domino-designer-8-5-3-and-git-my-talk-at-dannotes-november-2012.html
Deep Learning Neural Network Acceleration at the Edge - Andrea GalloLinaro
Short
The growing amount of data captured by sensors and the real time constraints imply that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in Arm-based platforms provide an unprecedented opportunity for new intelligent devices. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
Andrea Gallo, Linaro VP of Segment Groups, will summarise the existing NN frameworks, accelerator solutions, and will describe the efforts underway in the Arm ecosystem.
Abstract
The dramatically growing amount of data captured by sensors and the ever more stringent requirements for latency and real time constraints are paving the way for edge computing, and this implies that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in recent Arm-based platforms provides an unprecedented opportunity for new intelligent devices with ML inference. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
Andrea Gallo, Linaro VP of Segment Groups, will summarise the existing NN frameworks, model description formats, accelerator solutions, low cost development boards and will describe the efforts underway to identify the best technologies to improve the consolidation and enable the competitive innovative advantage from all vendors.
Audience
The session will be useful for executives to engineers. Executives will gain a deeper understanding of the issues and opportunities. Engineers at NN acceleration IP design houses will take away ideas for how to collaborate in the open source community on their area of expertise, how to evaluate the performance and accelerate multiple NN frameworks without modifying them for each new IP, whether it be targeting edge computing gateways, smart devices or simple microcontrollers.
Benefits to the Ecosystem
The AI deep learning neural network ecosystem is starting just now and it has similar implications with open source as GPU and video accelerators had in the early days with user space drivers, binary blobs, proprietary APIs and all possible ways to protect their IPs. The session will outline a proposal for a collaborative ecosystem effort to create a common framework to manage multiple NN accelerators while at the same time avoiding to modify deep learning frameworks with multiple forks.
Huawei’s requirements for the ARM based HPC solution readiness - Joshua MoraLinaro
Talk Title: Huawei’s requirements for the ARM based HPC solution readiness
Talk Abstract:
A high level review of a wide range of requirements to architect an ARM based competitive HPC solution is provided. The review combines both Industry and Huawei’s unique views with the intend to communicate openly not only the alignment and support in ongoing efforts carried over by other ARM key players but to brief on the areas of differentiation that Huawei is investing towards the research, development and deployment of homegrown ARM based HPC solution(s).
Speaker: Joshua Mora
Speaker Bio:
20 years of experience in research and development of both software and hardware for high performance computing. Currently leading the architecture definition and development of ARM based HPC solutions, both hardware and software, all the way to the applications (ie. turnkey HPC solutions for different compute intensive markets where ARM will succeed !!).
Bud17 113: distribution ci using qemu and open qaLinaro
“Delivering a well working distribution is hard. There are a lot of different hardware platforms that need to be verified and the software stack is in a big flux during development phases. In rolling releases, this gets even worse, as nothing ever stands still. The only sane answer to that problem are working Continuous Integration tests. The SUSE way to check whether any change breaks normal distribution behavior is OpenQA. Using OpenQA we can automatically run tests that hard working QA people did manually in the old days. That way we have fast enough turnaround times to find and reject breaking changes This session shows how OpenQA works, what pitfalls we had to make ARM work with OpenQA and what we’re doing to improve it for ARM specific use cases.”
OpenHPC Automation with Ansible - Renato Golin - Linaro Arm HPC Workshop 2018Linaro
Speaker: Renato Golin
Speaker Bio:
He started programming in the late 80's in C for PCs after a few years playing with 8-bit computers, but he only started programming professionally in the late 90's during the .com bubble. After many years working on Internet's back-end, he moved to UK and worked a few years on bioinformatics at EBI before joining ARM, where he worked on the DS-5 debugger and on the EDG-to-LLVM bridge, where he became the LLVM Tech Lead. Recently, he worked with large clusters and big data at HPCC before moving to Linaro.
Talk Title: OpenHPC Automation with Ansible
Talk Abstract: "In order to test OpenHPC packages and components and to use it as a
platform to benchmark HPC applications, Linaro is developing an automated deployment strategy, using Ansible, Mr-Provisioner and Jenkins, to install the
OS, OpenHPC and prepare the environment on varied architectures (Arm, x86). This work is meant to replace the existing ageing Bash-based recipes upstream while still keeping the documents intact. Our aim is to make it easier to vary hardware configuration, allow for different provisioning techniques and mix internal infrastructure logic to different labs, while still using the same recipes. We hope this will help more people use OpenHPC with a better out-of-the-box experience and with more robust results"
HPC network stack on ARM - Linaro HPC Workshop 2018Linaro
Speaker: Pavel Shamis
Company: Arm
Speaker Bio:
"Pavel is a Principal Research Engineer at ARM with over 16 years of experience in development HPC solutions. His work is focused on co-design software and hardware building blocks for high-performance interconnect technologies, development communication middleware and novel programming models. Prior to joining ARM, he spent five years at Oak Ridge National Laboratory (ORNL) as a research scientist at Computer Science and Math Division (CSMD). In this role, Pavel was responsible for research and development multiple projects in high-performance communication domain including: Collective Communication Offload (CORE-Direct & Cheetah), OpenSHMEM, and OpenUCX. Before joining ORNL, Pavel spent ten years at Mellanox Technologies, where he led Mellanox HPC team and was one of the key driver in enablement Mellanox HPC software stack, including OFA software stack, OpenMPI, MVAPICH, OpenSHMEM, and other.
Pavel is a recipient of prestigious R&D100 award for his contribution in development of the CORE-Direct collective offload technology and he published in excess of 20 research papers.
"
Talk Title: HPC network stack on ARM
Talk Abstract:
Applications, programming languages, and libraries that leverage sophisticated network hardware capabilities have a natural advantage when used in today¹s and tomorrow's high-performance and data center computer environments. Modern RDMA based network interconnects provides incredibly rich functionality (RDMA, Atomics, OS-bypass, etc.) that enable low-latency and high-bandwidth communication services. The functionality is supported by a variety of interconnect technologies such as InfiniBand, RoCE, iWARP, Intel OPA, Cray¹s Aries/Gemini, and others. Over the last decade, the HPC community has developed variety user/kernel level protocols and libraries that enable a variety of high-performance applications over RDMA interconnects including MPI, SHMEM, UPC, etc. With the emerging availability HPC solutions based on ARM CPU architecture it is important to understand how ARM integrates with the RDMA hardware and HPC network software stack. In this talk, we will overview ARM architecture and system software stack, including MPI runtimes, OpenSHMEM, and OpenUCX.
It just keeps getting better - SUSE enablement for Arm - Linaro HPC Workshop ...Linaro
Speaker: Jay Kruemcke
Speaker Company: SUSE
Bio:
"Jay is responsible for the SUSE Linux server products for High Performance Computing, 64-bit ARM systems, and SUSE Linux for IBM Power servers.
Jay has built an extensive career in product management including using social media for client collaboration, product positioning, driving future product directions, and evangelizing the capabilities and future directions for dozens of enterprise products.
"
Talk Title: It just keeps getting better - SUSE enablement for Arm
Talk Abstract:
SUSE has been delivering commercial Linux support for Arm based servers since 2016. Initially the focus was on high end servers for HPC and Ceph based software defined storage. But we have enabled a number of other Arm SoCs and are even supporting the Raspberry Pi. This session will cover the SUSE products that are available for the Arm platform and view to the future.
Intelligent Interconnect Architecture to Enable Next Generation HPC - Linaro ...Linaro
Speakers: Gilad Shainer and Scot Schultz
Company: Mellanox Technologies
Talk Title: Intelligent Interconnect Architecture to Enable Next
Generation HPC
Talk Abstract:
The latest revolution in HPC interconnect architecture is the development of In-Network Computing, a technology that enables handling and accelerating application workloads at the network level. By placing data-related algorithms on an intelligent network, we can overcome the new performance bottlenecks and improve the data center and applications performance. The combination of In-Network Computing and ARM based processors offer a rich set of capabilities and opportunities to build the next generation of HPC platforms.
Gilad Shainer Bio:
Gilad Shainer has served as Mellanox's vice president of marketing since March 2013. Previously, Mr. Shainer was Mellanox's vice president of marketing development from March 2012 to March 2013. Mr. Shainer joined Mellanox in 2001 as a design engineer and later served in senior marketing management roles between July 2005 and February 2012. Mr. Shainer holds several patents in the field of high-speed networking and contributed to the PCI-SIG PCI-X and PCIe specifications. Gilad Shainer holds a MSc degree (2001, Cum Laude) and a BSc degree (1998, Cum Laude) in Electrical Engineering from the Technion Institute of Technology in Israel.
Scot Schultz Bio:
Scot Schultz is a HPC technology specialist with broad knowledge in operating systems, high speed interconnects and processor technologies. Joining the Mellanox team in 2013, Schultz is 30-year veteran of the computing industry. Prior to joining Mellanox, he spent the past 17 years at AMD in various engineering and leadership roles in the area of high performance computing. Scot has also been instrumental with the growth and development of various industry organizations including the Open Fabrics Alliance, and continues to serve as a founding board-member of the OpenPOWER Foundation and Director of Educational Outreach and founding member of the HPC-AI Advisory Council.
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Sant...Linaro
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Santa Clara 2018
Bio: "Yutaka Ishikawa is the project leader of developing the post K
supercomputer. From 1987 to 2001, he was a member of AIST (former
Electrotechnical Laboratory), METI. From 1993 to 2001, he was the
chief of Parallel and Distributed System Software Laboratory at Real
World Computing Partnership. He led development of cluster system
software called SCore, which was used in several large PC cluster
systems around 2004. From 2002 to 2014, he was a professor at the
University Tokyo. He led a project to design a commodity-based
supercomputer called T2K open supercomputer. As a result, three
universities, Tsukuba, Tokyo, and Kyoto, obtained each supercomputer
based on the specification in 2008. He was also involved with the
design of the Oakleaf-PACS, the successor of T2K supercomputer in both
Tsukuba and Tokyo, whose peak performance is 25PF."
Session Title: Post-K and Arm HPC Ecosystem
Session Description:
"Post-K, a flagship supercomputer in Japan, is being developed by Riken
and Fujitsu. It will be the first supercomputer with Armv8-A+SVE.
This talk will give an overview of Post-K and how RIKEN and Fujitsu
are currently working on software stack for an Arm architecture."
Andrew J Younge - Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Su...Linaro
Event: Arm Architecture HPC Workshop by Linaro and HiSilicon
Location: Santa Clara, CA
Speaker: Andrew J Younge
Talk Title: Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Supercomputing
Talk Desc: The Vanguard program looks to expand the potential technology choices for leadership-class High Performance Computing (HPC) platforms, not only for the National Nuclear Security Administration (NNSA) but for the Department of Energy (DOE) and wider HPC community. Specifically, there is a need to expand the supercomputing ecosystem by investing and developing emerging, yet-to-be-proven technologies and address both hardware and software challenges together, as well as to prove-out the viability of such novel platforms for production HPC workloads.
The first deployment of the Vanguard program will be Astra, a prototype Petascale Arm supercomputer to be sited at Sandia National Laboratories during 2018. This talk will focus on the arthictecural details of Astra and the significant investments being made towards the maturing the Arm software ecosystem. Furthermore, we will share initial performance results based on our pre-general availability testbed system and outline several planned research activities for the machine.
Bio: Andrew Younge is a R&D Computer Scientist at Sandia National Laboratories with the Scalable System Software group. His research interests include Cloud Computing, Virtualization, Distributed Systems, and energy efficient computing. Andrew has a Ph.D in Computer Science from Indiana University, where he was the Persistent Systems fellow and a member of the FutureGrid project, an NSF-funded experimental cyberinfrastructure test-bed. Over the years, Andrew has held visiting positions at the MITRE Corporation, the University of Southern California / Information Sciences Institute, and the University of Maryland, College Park. He received his Bachelors and Masters of Science from the Computer Science Department at Rochester Institute of Technology (RIT) in 2008 and 2010, respectively.
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainlineLinaro
Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainlineLinaro
"Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-315 - Why the ecosystem is a wonderful thing, warts and allLinaro
"Session ID: HKG18-315
Session Name: HKG18-315 - Why the ecosystem is a wonderful thing warts and all
Speaker: Andrew Wafaa
Track: Ecosystem Day
★ Session Summary ★
The Arm ecosystem is a vibrant place, but it's not always smooth sailing. This presentation will go through the highs and lows of getting the ecosystem fully Arm enabled.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-315/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-315.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-315.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Ecosystem Day
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18- 115 - Partitioning ARM Systems with the Jailhouse HypervisorLinaro
"Session ID: HKG18-115
Session Name: HKG18-115 - Partitioning ARM Systems with the Jailhouse Hypervisor
Speaker: Jan Kiszka
Track: Security
★ Session Summary ★
The open source hypervisor Jailhouse provides hard partitioning of multicore systems to co-locate multiple Linux or RTOS instances side by side. It aims at low complexity and minimal footprint to achieve deterministic behavior and enable certifications according to safety or security standards. In this session, we would like to look at the ARM-specific status of Jailhouse and discuss applications, to-dos and possible collaborations around it with the ARM community. The session is intended to be half presentation, half Q&A / discussion.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-115/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-115.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-115.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Security
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
"Session ID: HKG18-TR08
Session Name: HKG18-TR08 - Upstreaming SVE in QEMU
Speaker: Alex Bennée,Richard Henderson
Track: Enterprise
★ Session Summary ★
ARM's Scalable Vector Extensions is an innovative solution to processing highly data parallel workloads. While several out-of-tree attempts at implementing SVE support for QEMU existed, we took a fundamentally different approach to solving key challenges and therefore pursued a from-scratch QEMU SVE implementation in Linaro. Our strategic choice was driven by several factors. First as an ""upstream first"" organisation we were focused on a solution that would be readily accepted by the upstream project. This entailed doing our development in the open on the project mailing lists where early feedback and community consensus can be reached.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-tr08/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-tr08.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-tr08.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Enterprise
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-113- Secure Data Path work with i.MX8MLinaro
"Session ID: HKG18-113
Session Name: HKG18-113 - Secure Data Path work with i.MX8M
Speaker: Cyrille Fleury
Track: Digital Home
★ Session Summary ★
NXP presentation on Secure Data Path work with i.MX8M Soc. Demonstrate 4K PlayReady playback with Android 8.1 running on i.MX8M. Focus on security (MS SL3000 and Widevine level 1)
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-113/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-113.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-113.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Digital Home
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-120 - Devicetree Schema Documentation and Validation Linaro
"Session ID: HKG18-120
Session Name: HKG18-120 - Structured Documentation and Validation for Device Tree
Speaker: Grant Likely
Track: Kernel
★ Session Summary ★
Devicetree has become the dominant hardware configuration language used when building embedded systems. Projects using Devicetree now include Linux, U-Boot, Android, FreeBSD, and Zephyr. However, it is notoriously difficult to write correct Devicetree data files. The dtc tools perform limited tests for valid data, and there there is not yet a way to add validity test for specific hardware descriptions. Neither is there a good way to document requirements for specific bindings. Work is underway to solve these problems. This session will present a proposal for adding Devicetree schema files to the Devicetree toolchain that can be used to both validate data and produce usable documentation.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-120/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-120.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-120.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
"Session ID: HKG18-223
Session Name: HKG18-223 - Trusted Firmware M : Trusted Boot
Speaker: Tamas Ban
Track: LITE
★ Session Summary ★
An overview of the trusted boot concept and firmware update on the ARMv8-M based platform and how MCUBoot acts as a BL2 bootloader for TF-M.
Trusted Firmware M
In October 2017, Arm announced the vision of Platform Security Architecture (PSA) - a common framework to allow everyone in the IoT ecosystem to move forward with stronger, scalable security and greater confidence. There are three key stages to the Platform Security Architecture: Analysis, Architecture and Implementation which are described at https://developer.arm.com/products/architecture/platform-security-architecture.
_Trusted Firmware M, i.e. TF-M, is the Arm project to provide an open source reference implementation firmware that will conform to the PSA specification for M-Class devices. Early access to TF-M was released in December 2017 and it is being made public during Linaro Connect. The implementation should be considered a prototype until the PSA specifications reach release state and the code aligns._
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-223/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-223.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-223.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: LITE
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
2. Who Am I? Why Listen To Me?
● Kernel Working Group TL
● I make pretty spreadsheets and run meetings
● Before that I did write code!
● 12 years kernel experience
● One of first folks at Intel to work on Linux code
● Developed and maintained IXP* Xscale NPU ports
● Kernel maintainer at MontaVista for several years
● Reviewed all patches for distro kernel
● Reviewed thousands of lines of vendor BSP code
● OLPC kernel maintainer for about 1.5 years
3. Today's Goals
● Provide an overview of upstreaming code
● Social and Technical
● From Design to Submitting Patches
● How does the process differ from closed development?
● Some general guidelines on design and coding.
● Some low level details on submitting patches.
● Geared at those who are completely new to this world
● For both Managers and Engineers
4. The Problem
● Ever increasing number of Linux developers!
● Specially in the ARM world
● Lots of good technical documentation!
● Linux Device Drivers - http://lwn.net/Kernel/LDD3/
● Understanding the Linux Kernel - http://goo.gl/p4pM4
● Linux Kernel Development - http://goo.gl/0YY27
● Organizations beginning to understand technical
and business benefits of getting code upstream!
● More developers interested in working upstream!
● This is a problem?
5. The Issues...
● Using documented APIs and infrastructure is easy
● Creating new APIs and infrastructure is hard
● Creating good APIs and infrastructure is harder
● Creating good APIs and infrastructure for upstream is even harder
● Many SOC problems require creating new subsystems
● Or modifying existing ones to support new features
● Books tend to be x86 oriented
● Do not cover drivers common to other arches: i2c, spi, etc
● Make assumptions about underlying HW
● (See Upcoming Porting Linux by Jon Masters, ETA 2013)
● Working with the community is not documented
● Much tribal knowledge on the process
● Same mistakes are often made by new participants
6. V3.4
Who Exactly Is The Community?
(From list of top 3.4 contributors: http://lwn.net/Articles/496193/)
7. Upstream Development:
The Right and Wrong Way
3.x Release 3.y+1-rc1 Release 3.y+1 Release
2 Week Merge Window 6-12 Week Stabilization
Your Development
Starts Here
Months to Years...
If you wait until this window to release your
code, expecting it to just go in, it will not (there
have been a few exceptions, but very rare). You
need to release your code early and often
during your development phase to get feedback
and fix issues as they come up.
9. Avoiding Issues:
Don't Re-invent the Wheel
● Do Your Homework
● Many problems already have known solutions in Linux
● Driver APIs for specific functionality
● User/Kernel interfaces and system level tools
● It may just not be obvious at first.
● May not be documented in one single place
● May just be tribal knowledge
● Google is your friend here
● Read the code
● Ask the experts
● Release Early, Release Often to save your time!
10. Avoiding Issues:
Abstraction
● Don't Abstract Unnecessarily
● NO cross-OS HALs (unless extremely well designed)
● Don't add wrappers around existing in-kernel APIs
● Too much abstraction makes code harder to maintain
● Code is harder to read/debug
● Abstraction layer might have bugs
● Kernel API changes are hidden
● Difficult for someone new to get involved
● Release Early, Release Often to find these issues early!
11. Avoiding Issues:
Solving Common Problems
● Your HW is Not Unique
● Your HW may seem unique at first, however...
● Others are close by or will soon follow
● Most HW comes from similar research paths
● They will need same kernel support as you do
● Don't blindly add hooks to kernel for these features
● We don't want multiple implementations of same idea
● Need to add APIs at proper points in kernel
● Work with external developers to develop these
● Work with other HW vendors
● !THIS IS WHAT LINARO IS ALL ABOUT!
● Release Early, Release Often to find common solutions!
12. Avoiding Issues:
Good API Design
● Good APIs are:
● Easy to use & Hard to misuse
● Follow KISS Principle: Keep it Simple Stupid
● Should be very clear from just name, parameters
● Should be obvious when you use it wrongly
● Build time errors or obvious error values
● Just read Rusty's Blog Post:
● http://ozlabs.org/~rusty/index.cgi/tech/2008-03-30.html
● Release Early, Release often so you don't built a whole
stack of software on top of poorly designed APIs!
13. Practicalities:
How Do I Post Patches?
● Read Documentation/SubmittingPatches
● Send email to maintainers and list
● One cover email with:
● Summary of WHAT you are solving
● Explaining WHY you used your approach
● Talk about any dependent patchsets
● Don't assume knowledge about your technology area
● git log --diff (which includes patch headers)
● Always post patch against latest tip
● One message per patch
● Break up your changes into small units that build on each other
● If you are adding 100's of lines to one function...you're doing it wrong
● Refactor your patches using “git-rebase -i”
● Go to today's git session
14. Practicalities:
Who do I send my patches to?
● Use git-log and git-blame commands
● git-log to find out the last few people to make changes
● git-blame to find out if
● Read MAINTAINERS file in top level directory
● get-maintainers.pl script
● Will give you mailing list and maintainer address
~/src/linux$ ./scripts/get_maintainer.pl spi_message_queue.patch
Grant Likely <grant.likely@secretlab.ca> (maintainer:SPI SUBSYSTEM)
Randy Dunlap <rdunlap@xenotime.net> (maintainer:DOCUMENTATION)
spidevelgeneral@lists.sourceforge.net (open list:SPI SUBSYSTEM)
linuxdoc@vger.kernel.org (open list:DOCUMENTATION)
linuxkernel@vger.kernel.org (open list)
~/src/linux$ ./scripts/get_maintainer.pl f drivers/mfd/max8925core.c
Samuel Ortiz <sameo@linux.intel.com> (supporter:MULTIFUNCTION DEV...)
linuxkernel@vger.kernel.org (open list)
:~/src/linux$ ./scripts/get_maintainer.pl f drivers/i2c
"Jean Delvare (PC drivers, core)" <khali@linuxfr.org> (maintainer:I2C SUBSYSTEM)
"Ben Dooks (embedded platforms)" <benlinux@fluff.org> (maintainer:I2C SUBSYSTEM)
"Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> (maintainer:I2C SUBSYSTEM)
linuxi2c@vger.kernel.org (open list:I2C SUBSYSTEM)
linuxkernel@vger.kernel.org (open list)
15. Practicalities:
Using Signed-Off By
● Signed-off-by is legally binding!
● Make sure you have approval!
Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my signoff) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
16. Practicalities:
Nobody Replied to My Patches!
● Be patient, don't expect an immediate response.
● Check mailing list archives:
● What's the typical response rate?
● Did the maintainer announce a vacation?
● Is this a merge window?
● Everyone is super busy, try again when it closes
● If it really seems like patches got dropped, email
the maintainer privately with a pointer to thread.
● If still no response:
● Ping one level up in tree.
● For drivers: Ping Greg KH
● Sometimes you just have to email patches to Linus directly
● Shames the maintainer, gets his/her attention
17. Practicalities:
Responses From Other Developers
● Acked-by: This person is OK with the changes.
Usually a maintainer of a subsystem affected by
patch.
● Reviewed-by: This person has done a thorough
technical review of the patch.
● Tested-by: This person did some level of testing.
Allows maintainer to know that it has been
validated on an environment other than original
author's.
18. Practicalities:
When Someone Attacks You :(
● It unfortunately happens :(
● Do NOT Escalate
● Take a step back
● Go work on something else
● Grab a beer (BUT NOT WHILE REPLYING!)
● Pick out the technical issues
● Get some help in reading the negative email
● Respond to just these
● Hint: Attending conferences and meeting people
face to face reduces the likelihood of this
happening.
19. Practicalities:
I can't Release Early and Often
● Ask for Private Reviews
● NDAs with upstream maintainer(s) and experts
● Linaro can possibly help here
● Several of these people are part of our organization
● We have good relationships with many upstream maintainers
● Can you release the concepts if not the code?
● Fine art of providing enough details w/o giving away the
secret sauce
● What are the high level problems you want to solve?
20. Summary
● The community is just a bunch of developers
● Like you, just with more experience of the process.
● Most of them really want to help!
● Good kernel code:
● Doesn't re-invent what's already there
● Doesn't add abstraction for the sake of abstraction
● Solves common issues - abstraction only when needed
● Has well-designed APIs
● Read the documentation and the code
● Participate openly and respectfully
● Ask us for help
● Release Early, Release Often :)