The presentation is from a talk I gave at the ETAS Connections 2018 event. It details the reasoning for the use of Linux in the Automotive domain for safety-critical systems.
The content is based on our OSADL approach taken in the SIL2MP Linux project
This webinar by Andriy Petlovanyy (Senior Solution Architect, Consultant, GlobalLogic) was delivered at Embedded Community Webinar #5 on October 8, 2020.
This report focuses on the use of the Memory Protection Unit (MPU) in the Cortex M series of microcontrollers. We have considered the different uses of this tool, including the strengths and weaknesses of each of the proposed approaches. Participants briefly looked at the use of MPU in various real-time operating systems (Real-Time Operating System, RTOS). The speaker shared the results of research and interesting observations in this area.
More details and presentation: https://www.globallogic.com/ua/about/events/embedded-community-webinar-5/
EB corbos and the L4Re microhypervisor: Open-source automotive safetyAlexander Much
This is the slide deck for a talk at Linaro Connect 2018 in Vancouver.
In the talk we show a reference architecture and implementation using open source components, L4Re hypervisor and the Adaptive AUTOSAR solution from Elektrobit
LCU13: An Introduction to ARM Trusted FirmwareLinaro
Resource: LCU13
Name: An Introduction to ARM Trusted Firmware
Date: 28-10-2013
Speaker: Andrew Thoelke
Video: http://www.youtube.com/watch?v=q32BEMMxmfw
This webinar by Andriy Petlovanyy (Senior Solution Architect, Consultant, GlobalLogic) was delivered at Embedded Community Webinar #5 on October 8, 2020.
This report focuses on the use of the Memory Protection Unit (MPU) in the Cortex M series of microcontrollers. We have considered the different uses of this tool, including the strengths and weaknesses of each of the proposed approaches. Participants briefly looked at the use of MPU in various real-time operating systems (Real-Time Operating System, RTOS). The speaker shared the results of research and interesting observations in this area.
More details and presentation: https://www.globallogic.com/ua/about/events/embedded-community-webinar-5/
EB corbos and the L4Re microhypervisor: Open-source automotive safetyAlexander Much
This is the slide deck for a talk at Linaro Connect 2018 in Vancouver.
In the talk we show a reference architecture and implementation using open source components, L4Re hypervisor and the Adaptive AUTOSAR solution from Elektrobit
LCU13: An Introduction to ARM Trusted FirmwareLinaro
Resource: LCU13
Name: An Introduction to ARM Trusted Firmware
Date: 28-10-2013
Speaker: Andrew Thoelke
Video: http://www.youtube.com/watch?v=q32BEMMxmfw
Session ID: HKG18-212
Session Name: HKG18-212 - Trusted Firmware M: Introduction
Speaker: James King
Track: Iot, Security
★ Session Summary ★
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/hkg18-212/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-212.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-212.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Iot, 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
The second part of Linux Internals covers system calls, process subsystem and inter process communication mechanisms. Understanding these services provided by Linux are essential for embedded systems engineer.
SFO15-TR9: PSCI, ACPI (and UEFI to boot)
Speaker: Bill Fletcher
Date: September 24, 2015
★ Session Description ★
An introductory session of a system-level overview at Power State Coordination
- Focus on ARMv8
- Goes top-down from ACPI
- A demo based on the current code in qemu
- The specifications are very dynamic - what’s onging for ACPI and PSCI
★ Resources ★
Video: https://www.youtube.com/watch?v=vXzPdpaZVto
Presentation: http://www.slideshare.net/linaroorg/sfo15tr9-psci-acpi-and-uefi-to-boot
Etherpad: pad.linaro.org/p/sfo15-tr9
Pathable: https://sfo15.pathable.com/meetings/303087
★ Event Details ★
Linaro Connect San Francisco 2015 - #SFO15
September 21-25, 2015
Hyatt Regency Hotel
http://www.linaro.org
http://connect.linaro.org
Join this video course on Udemy. Click the below link
https://www.udemy.com/mastering-rtos-hands-on-with-freertos-arduino-and-stm32fx/?couponCode=SLIDESHARE
>> The Complete FreeRTOS Course with Programming and Debugging <<
"The Biggest objective of this course is to demystifying RTOS practically using FreeRTOS and STM32 MCUs"
STEP-by-STEP guide to port/run FreeRTOS using development setup which includes,
1) Eclipse + STM32F4xx + FreeRTOS + SEGGER SystemView
2) FreeRTOS+Simulator (For windows)
Demystifying the complete Architecture (ARM Cortex M) related code of FreeRTOS which will massively help you to put this kernel on any target hardware of your choice.
LCU13: Deep Dive into ARM Trusted Firmware
Resource: LCU13
Name: Deep Dive into ARM Trusted Firmware
Date: 31-10-2013
Speaker: Dan Handley / Charles Garcia-Tobin
LAS16-402: ARM Trusted Firmware – from Enterprise to EmbeddedLinaro
LAS16-402: ARM Trusted Firmware – from Enterprise to Embedded
Speakers:
Date: September 29, 2016
★ Session Description ★
ARM Trusted Firmware has established itself as a key part of the ARMv8-A software stack. Broadening its applicability across all segments, from embedded to enterprise, is challenging. This session discusses the latest developments, including extension into the 32-bit space.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-402
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-402/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
Compare Performance-power of Arm Cortex vs RISC-V for AI applications_oct_2021Deepak Shankar
Abstract: In the Webinar, we will show you how to construct, simulate, analyze, validate, optimize an architecture model using pre-built components. We will compare micro and application benchmarks on system SoC models containing clusters of ARM Cortex A53, SiFive u74, ARM Cortex A77, and other vendor cores. The system will be built around custom switches, Ingress/Egress buffers, credit flow control, AI accelerators, NoC and AMBA AXI buses with multi-level caches, DDR4 DRAM and DMA. The evaluation and optimization criteria will be task latency, dCache hit-ratio, power consumed/task and memory bandwidth. The parameters to be modified are bus topology, cache size, processor clock speed, custom arbiters, task thread allocation and changing the processor pipeline.
Selection of cores is a combination of financial and technical bias. Technical comparison of processor cores requires the understanding of the workload, task partitioning and cache-memory structure. A core must be evaluated in the context of the target application. To evaluate these selections, architecture simulation software must be fortified with a library of Intellectual property for power and timing accurate processor cores, simulator at 100 million events per second, peripherals, and all possible traffic distributions
Key Takeaways:
1. Validating architecture models using mathematical calculus and hardware traces
2. Construct custom policies, arbitrations and configure processor cores
3. Select the right combination of statistics to detect bottlenecks and optimize the architecture
4. Identify the right use of stochastic, transaction, cycle-accurate and traces to construct the model
Speaker Bio:
Alex Su is a FPGA solution architect at E-Elements Technology, Hsinchu, Taiwan. He has been an FPGA Solution Architect and Xilinx FPGA Trainer for a number of years, supporting companies, research centers and universities in China and Taiwan. Prior to that, Mr Su has worked at ARM Ltd for 5 years in technical support of Arm CPU and System IP. Alex has also been engaged with a variety of FPGA-based Hardware Emulation System and over ten years in ASIC/SoC design and verification engineer.
Deepak Shankar is the Founder of Mirabilis Design and has been involved in the architecture exploration of over 250 SoC and processors. Mr. Shankar started Mirabilis Design because of a vacuum in the systems engineering and modeling space with the focus shifting to network design and early software development. Deepak has published over 50 articles and presented at over 30 conferences in EDA, semiconductors and embedded computing. Mr. Shankar has an MBA from UC Berkeley, MS in from Clemson University and BS from Coimbatore Institute of Technology, both in Electronics and Communication.
Linux has emerged as a number one choice for developing OS based Embedded Systems. Open Source development model, Customizability, Portability, Tool chain availability are some reasons for this success. This course gives a practical perspective of customizing, building and bringing up Linux Kernel on an ARM based target hardware. It combines various previous modules you have learned, by combing Linux administration, Hardware knowledge, Linux as OS, C/Computer programming areas. After bringing up Linux, you can port any of the existing applications into the target hardware.
Join this video course on udemy . Click here :
https://www.udemy.com/course/mastering-microcontroller-with-peripheral-driver-development/?couponCode=SLIDESHARE
In this course, the code is developed such a way that, It can be ported to any MCU you have at your hand.
If you need any help in porting these codes to different MCUs you can always reach out to me!
The course is strictly not bound to any 1 type of MCU. So, if you already have any Development board which runs with ARM-Cortex M3/M4 processor,
then I recommend you to continue using it.
But if you don’t have any Development board, then check out the below Development boards.
Talk for YOW! by Brendan Gregg. "Systems performance studies the performance of computing systems, including all physical components and the full software stack to help you find performance wins for your application and kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (ftrace, bcc/BPF, and bpftrace/BPF), advice about what is and isn't important to learn, and case studies to see how it is applied. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud.
"
New Ways to Find Latency in Linux Using TracingScyllaDB
Ftrace is the official tracer of the Linux kernel. It originated from the real-time patch (now known as PREEMPT_RT), as developing an operating system for real-time use requires deep insight and transparency of the happenings of the kernel. Not only was tracing useful for debugging, but it was critical for finding areas in the kernel that was causing unbounded latency. It's no wonder why the ftrace infrastructure has a lot of tooling for seeking out latency. Ftrace was introduced into mainline Linux in 2008, and several talks have been done on how to utilize its tracing features. But a lot has happened in the past few years that makes the tooling for finding latency much simpler. Other talks at P99 will discuss the new ftrace tracers "osnoise" and "timerlat", but this talk will focus more on the new flexible and dynamic aspects of ftrace that facilitates finding latency issues which are more specific to your needs. Some of this work may still be in a proof of concept stage, but this talk will give you the advantage of knowing what tools will be available to you in the coming year.
DAIS19: On the Performance of ARM TrustZoneLEGATO project
Presented by Valerio Schiavoni @vschiavoni at DAIS 19
The TrustZone technology, available in the vast majority of recent Arm processors, allows the execution of code inside a so-called secure world. It effectively provides hardware-isolated areas of the processor for sensitive data and code, i.e., a trusted execution environment (TEE). The Op-Tee framework provides a collection of toolchain, opensource libraries and secure kernel specifically geared to develop applications for TrustZone. This paper presents an in-depth performance- and energy-wise study of TrustZone using the Op-Tee framework, including secure storage and the cost of switching between secure and unsecure worlds, using emulated and hardware measurements.
This presentation contains an overview of novelties in ARMv8-A and details on application binary interface (ABI), memory management unit (MMU), caches and interrupts.
This talk was held within GlobalLogic Lviv Embedded TechTalk on November 23d, 2017.
Mixed-critical adaptive AUTOSAR stack based on VxWorks, Linux, and virtualiza...Andrei Kholodnyi
Since the first release of its standard in 2003, AUTOSAR has established itself as one of the primary software development standards for the global automotive industry. As the automotive industry is a now undergoing one of the significant changes in its history toward autonomous driving, connectivity and electrification new standards are needed to handle the complexity regarding software architecture for controlling the high-end processors, Ethernet communication, and over-the-air updates in the cloud-connected automobiles. The recent advent of the Adaptive AUTOSAR standard can help accommodate the extensive and complex requirements of autonomous driving by enabling a flexible, dynamic, and service based platform while still maintaining the integrity of high degree of functional safety standards and also properly engaging with established platforms. The standard itself replies on some technologies which are already established in the industry such as virtualization, POSIX PSE51, C++11/14 for application development, ISO26262/ASIL compliance, etc.
This presentation provides example of an implementation of mixed critical Adaptive AUTOSAR stack based on VxWorks RTOS, embedded Linux, and virtualization profile from Wind River. As one of the very few solutions available on the market which is already fulfilling the requirements described above, VxWorks is a strong example of a foundational software platform for Adaptive AUTOSAR-based autonomous driving development. We will also explain what challenges we have encounter with during this process and make some suggestions to the AUTOSAR consortium of how to overcome them in the future.
HKG18-300K2 - Keynote: Tomas Evensen - All Programmable SoCs? – Platforms to ...Linaro
Session ID: HKG18-300K2
Session Name: HKG18-300K2 - Keynote: Tomas Evensen - All Programmable SoCs? – Platforms to enable the future of Embedded Machine Learning
Speaker: Tomas Evensen
Track: Ecosystem Day
★ Session Summary ★
As Moore's law is slowing down, heterogeneous architectures are needed to keep up with the increasing compute requirements emerging from industry trends such as the use machine learning across a diverse range of markets and applications. These compute requirements require custom system architectures to suit the rapidly evolving demands of emerging algorithms, standards and trends.
Field Programmable hardware offers a unique capability to provide flexibility alongside advanced processor architectures to address this ever increasing multitude of applications. Development flows, programmability and flexibility are crucial to the enablement of these advancing algorithms and to enable the next generation of implementations in a world of advancing Artificial intelligence.
In this session we will introduce you to an all Programmable paradigm and low cost development platform to enable an ecosystem of flexibility and unparalleled programmability.
The future is now…...
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-300k2/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-300k2.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-300k2.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
Session ID: HKG18-212
Session Name: HKG18-212 - Trusted Firmware M: Introduction
Speaker: James King
Track: Iot, Security
★ Session Summary ★
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/hkg18-212/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-212.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-212.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Iot, 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
The second part of Linux Internals covers system calls, process subsystem and inter process communication mechanisms. Understanding these services provided by Linux are essential for embedded systems engineer.
SFO15-TR9: PSCI, ACPI (and UEFI to boot)
Speaker: Bill Fletcher
Date: September 24, 2015
★ Session Description ★
An introductory session of a system-level overview at Power State Coordination
- Focus on ARMv8
- Goes top-down from ACPI
- A demo based on the current code in qemu
- The specifications are very dynamic - what’s onging for ACPI and PSCI
★ Resources ★
Video: https://www.youtube.com/watch?v=vXzPdpaZVto
Presentation: http://www.slideshare.net/linaroorg/sfo15tr9-psci-acpi-and-uefi-to-boot
Etherpad: pad.linaro.org/p/sfo15-tr9
Pathable: https://sfo15.pathable.com/meetings/303087
★ Event Details ★
Linaro Connect San Francisco 2015 - #SFO15
September 21-25, 2015
Hyatt Regency Hotel
http://www.linaro.org
http://connect.linaro.org
Join this video course on Udemy. Click the below link
https://www.udemy.com/mastering-rtos-hands-on-with-freertos-arduino-and-stm32fx/?couponCode=SLIDESHARE
>> The Complete FreeRTOS Course with Programming and Debugging <<
"The Biggest objective of this course is to demystifying RTOS practically using FreeRTOS and STM32 MCUs"
STEP-by-STEP guide to port/run FreeRTOS using development setup which includes,
1) Eclipse + STM32F4xx + FreeRTOS + SEGGER SystemView
2) FreeRTOS+Simulator (For windows)
Demystifying the complete Architecture (ARM Cortex M) related code of FreeRTOS which will massively help you to put this kernel on any target hardware of your choice.
LCU13: Deep Dive into ARM Trusted Firmware
Resource: LCU13
Name: Deep Dive into ARM Trusted Firmware
Date: 31-10-2013
Speaker: Dan Handley / Charles Garcia-Tobin
LAS16-402: ARM Trusted Firmware – from Enterprise to EmbeddedLinaro
LAS16-402: ARM Trusted Firmware – from Enterprise to Embedded
Speakers:
Date: September 29, 2016
★ Session Description ★
ARM Trusted Firmware has established itself as a key part of the ARMv8-A software stack. Broadening its applicability across all segments, from embedded to enterprise, is challenging. This session discusses the latest developments, including extension into the 32-bit space.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-402
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-402/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
Compare Performance-power of Arm Cortex vs RISC-V for AI applications_oct_2021Deepak Shankar
Abstract: In the Webinar, we will show you how to construct, simulate, analyze, validate, optimize an architecture model using pre-built components. We will compare micro and application benchmarks on system SoC models containing clusters of ARM Cortex A53, SiFive u74, ARM Cortex A77, and other vendor cores. The system will be built around custom switches, Ingress/Egress buffers, credit flow control, AI accelerators, NoC and AMBA AXI buses with multi-level caches, DDR4 DRAM and DMA. The evaluation and optimization criteria will be task latency, dCache hit-ratio, power consumed/task and memory bandwidth. The parameters to be modified are bus topology, cache size, processor clock speed, custom arbiters, task thread allocation and changing the processor pipeline.
Selection of cores is a combination of financial and technical bias. Technical comparison of processor cores requires the understanding of the workload, task partitioning and cache-memory structure. A core must be evaluated in the context of the target application. To evaluate these selections, architecture simulation software must be fortified with a library of Intellectual property for power and timing accurate processor cores, simulator at 100 million events per second, peripherals, and all possible traffic distributions
Key Takeaways:
1. Validating architecture models using mathematical calculus and hardware traces
2. Construct custom policies, arbitrations and configure processor cores
3. Select the right combination of statistics to detect bottlenecks and optimize the architecture
4. Identify the right use of stochastic, transaction, cycle-accurate and traces to construct the model
Speaker Bio:
Alex Su is a FPGA solution architect at E-Elements Technology, Hsinchu, Taiwan. He has been an FPGA Solution Architect and Xilinx FPGA Trainer for a number of years, supporting companies, research centers and universities in China and Taiwan. Prior to that, Mr Su has worked at ARM Ltd for 5 years in technical support of Arm CPU and System IP. Alex has also been engaged with a variety of FPGA-based Hardware Emulation System and over ten years in ASIC/SoC design and verification engineer.
Deepak Shankar is the Founder of Mirabilis Design and has been involved in the architecture exploration of over 250 SoC and processors. Mr. Shankar started Mirabilis Design because of a vacuum in the systems engineering and modeling space with the focus shifting to network design and early software development. Deepak has published over 50 articles and presented at over 30 conferences in EDA, semiconductors and embedded computing. Mr. Shankar has an MBA from UC Berkeley, MS in from Clemson University and BS from Coimbatore Institute of Technology, both in Electronics and Communication.
Linux has emerged as a number one choice for developing OS based Embedded Systems. Open Source development model, Customizability, Portability, Tool chain availability are some reasons for this success. This course gives a practical perspective of customizing, building and bringing up Linux Kernel on an ARM based target hardware. It combines various previous modules you have learned, by combing Linux administration, Hardware knowledge, Linux as OS, C/Computer programming areas. After bringing up Linux, you can port any of the existing applications into the target hardware.
Join this video course on udemy . Click here :
https://www.udemy.com/course/mastering-microcontroller-with-peripheral-driver-development/?couponCode=SLIDESHARE
In this course, the code is developed such a way that, It can be ported to any MCU you have at your hand.
If you need any help in porting these codes to different MCUs you can always reach out to me!
The course is strictly not bound to any 1 type of MCU. So, if you already have any Development board which runs with ARM-Cortex M3/M4 processor,
then I recommend you to continue using it.
But if you don’t have any Development board, then check out the below Development boards.
Talk for YOW! by Brendan Gregg. "Systems performance studies the performance of computing systems, including all physical components and the full software stack to help you find performance wins for your application and kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (ftrace, bcc/BPF, and bpftrace/BPF), advice about what is and isn't important to learn, and case studies to see how it is applied. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud.
"
New Ways to Find Latency in Linux Using TracingScyllaDB
Ftrace is the official tracer of the Linux kernel. It originated from the real-time patch (now known as PREEMPT_RT), as developing an operating system for real-time use requires deep insight and transparency of the happenings of the kernel. Not only was tracing useful for debugging, but it was critical for finding areas in the kernel that was causing unbounded latency. It's no wonder why the ftrace infrastructure has a lot of tooling for seeking out latency. Ftrace was introduced into mainline Linux in 2008, and several talks have been done on how to utilize its tracing features. But a lot has happened in the past few years that makes the tooling for finding latency much simpler. Other talks at P99 will discuss the new ftrace tracers "osnoise" and "timerlat", but this talk will focus more on the new flexible and dynamic aspects of ftrace that facilitates finding latency issues which are more specific to your needs. Some of this work may still be in a proof of concept stage, but this talk will give you the advantage of knowing what tools will be available to you in the coming year.
DAIS19: On the Performance of ARM TrustZoneLEGATO project
Presented by Valerio Schiavoni @vschiavoni at DAIS 19
The TrustZone technology, available in the vast majority of recent Arm processors, allows the execution of code inside a so-called secure world. It effectively provides hardware-isolated areas of the processor for sensitive data and code, i.e., a trusted execution environment (TEE). The Op-Tee framework provides a collection of toolchain, opensource libraries and secure kernel specifically geared to develop applications for TrustZone. This paper presents an in-depth performance- and energy-wise study of TrustZone using the Op-Tee framework, including secure storage and the cost of switching between secure and unsecure worlds, using emulated and hardware measurements.
This presentation contains an overview of novelties in ARMv8-A and details on application binary interface (ABI), memory management unit (MMU), caches and interrupts.
This talk was held within GlobalLogic Lviv Embedded TechTalk on November 23d, 2017.
Mixed-critical adaptive AUTOSAR stack based on VxWorks, Linux, and virtualiza...Andrei Kholodnyi
Since the first release of its standard in 2003, AUTOSAR has established itself as one of the primary software development standards for the global automotive industry. As the automotive industry is a now undergoing one of the significant changes in its history toward autonomous driving, connectivity and electrification new standards are needed to handle the complexity regarding software architecture for controlling the high-end processors, Ethernet communication, and over-the-air updates in the cloud-connected automobiles. The recent advent of the Adaptive AUTOSAR standard can help accommodate the extensive and complex requirements of autonomous driving by enabling a flexible, dynamic, and service based platform while still maintaining the integrity of high degree of functional safety standards and also properly engaging with established platforms. The standard itself replies on some technologies which are already established in the industry such as virtualization, POSIX PSE51, C++11/14 for application development, ISO26262/ASIL compliance, etc.
This presentation provides example of an implementation of mixed critical Adaptive AUTOSAR stack based on VxWorks RTOS, embedded Linux, and virtualization profile from Wind River. As one of the very few solutions available on the market which is already fulfilling the requirements described above, VxWorks is a strong example of a foundational software platform for Adaptive AUTOSAR-based autonomous driving development. We will also explain what challenges we have encounter with during this process and make some suggestions to the AUTOSAR consortium of how to overcome them in the future.
HKG18-300K2 - Keynote: Tomas Evensen - All Programmable SoCs? – Platforms to ...Linaro
Session ID: HKG18-300K2
Session Name: HKG18-300K2 - Keynote: Tomas Evensen - All Programmable SoCs? – Platforms to enable the future of Embedded Machine Learning
Speaker: Tomas Evensen
Track: Ecosystem Day
★ Session Summary ★
As Moore's law is slowing down, heterogeneous architectures are needed to keep up with the increasing compute requirements emerging from industry trends such as the use machine learning across a diverse range of markets and applications. These compute requirements require custom system architectures to suit the rapidly evolving demands of emerging algorithms, standards and trends.
Field Programmable hardware offers a unique capability to provide flexibility alongside advanced processor architectures to address this ever increasing multitude of applications. Development flows, programmability and flexibility are crucial to the enablement of these advancing algorithms and to enable the next generation of implementations in a world of advancing Artificial intelligence.
In this session we will introduce you to an all Programmable paradigm and low cost development platform to enable an ecosystem of flexibility and unparalleled programmability.
The future is now…...
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-300k2/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-300k2.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-300k2.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
The Civil Infrastructure Platform (CIP) is creating a super long-term supported (SLTS) open source "base layer" for industrial grade software. We have been working on security fixes and some backported features since the moment we decided that Linux kernel v4.4 would be the first SLTS version. In this talk, we will describe the current development
status of the SLTS kernel and testing environment. First, we'll explain our kernel development policy. Then, we'll describe the functionality that has been backported. Second, we'll talk about testing before using our base-layer on real products. We have been developing a test framework to collect and share test results. To build it, we don't want to duplicate existing work such as KernelCI, Fuego and others. For that reason, we are trying to collaborate and contribute to such projects.
Open Source for Industry 4.0 – Open IoT Summit NA 2018Benjamin Cabé
Industry 4.0 is set to revolutionize the manufacturing industry. The potential for more flexible manufacturing, more efficient processes and lower costs are the driving factors behind the investment in Industry 4.0 solutions. A key part of creating successful Industry 4.0 solutions will be software on the factory floor and in the cloud.
In this talk, we will introduce how open source software has become a trusted source of technology for the enterprise IT software industry and how the Eclipse IoT open source community and other open source communities are now ready to provide production ready technology for the manufacturing industry and Industry 4.0. Open source software will provide the key building blocks that will promote the interoperability and flexibility required by Industry 4.0 solutions.
WSO2Con USA 2017: Building Enterprise Grade IoT Architectures for Digital Tra...WSO2
IoT and mobile computing are at the heart of many organizations’ digital transformation initiatives. Together, these technologies are enabling enterprises to innovate new business models and solutions that enhance customer and partner interactions, optimize supply chain logistics, and improve operational efficiency. Implementing a scalable and extensible IoT architecture is key for this transformation.
WSO2 IoT Server offers an extensible framework for device manufacturers to write plugins for various types of devices they wish to integrate with. Data gathered from devices can be processed with batch and real-time analytics and this data can even be fed into a prediction engine. Devices can be exposed as managed APIs for integration. On top these, it offers a complete enterprise mobility management (EMM/MDM/MAM) solution for enterprises looking to manage employees’ mobile devices.
This talk will give you an introduction to the key capabilities of WSO2 IoT Server and discusses how it can be extended to build a scalable IoT architecture.
HKG18-301 - Dramatically Accelerate 96Board Software via an FPGA with Integra...Linaro
Session ID: HKG18-301
Session Name: HKG18-301 - Dramatically Accelerate 96Board Software via an FPGA with Integrated Processors
Speaker: Glenn Steiner
Track: LITE
★ Session Summary ★
Key Takeaways:
With the drive to increase integration, reduce system costs, accelerate performance, and enhance reliability, software developers are discovering the processor they would like to target is simply not fast enough. This session will help you the system architect or software developer understand how you can architect and develop software on an FPGA integrated processor, and accelerate software code via FPGA accelerators.
Abstract:
As a software developer, in order to meet system level performance requirements, you may have realized that your next software project will be targeting a processor inside of an FPGA. How will this impact your development process and what benefits might you gain with this tight integration of processor and FPGA? Starting from the basics of what FPGAs are (in terms of software programming), this session will provide a simple to understand primer of what modern FPGAs with embedded processors can do. We will wrap up with examples of how high level synthesis tools can move software to programmable logic hardware enabling dramatic software acceleration.
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★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-301/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-301.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-301.mp4
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★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
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Keyword: LITE
'http://www.linaro.org'
'http://connect.linaro.org'
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This presentation describes some of the Open Source Ai projects we are working at the Center for Open Source, Data and AI Technologies (CODAIT), including Model Asset Exchange (MAX), Fabric for Deep Learning (FfDL) and Jupyter Enterprise Gateway.
DCEU 18: Designing a Global Centralized Container Platform for a Multi-Cluste...Docker, Inc.
Mijo Safradin - Linux Engineer, Robert Bosch GmbH
Deploying, operating and maintaining many independent clusters is always a key challenge for central service providers in large enterprises. The number of customers and different use-cases realized on the provided platform requires an architecture that is highly integrated into the enterprise IT ecosystem. In this talk we highlight the challenges that came up during the development of the “Container as a Service” Platform based on Docker Enterprise. We also address the architectural and operational decisions we made to cope with requirements of different stakeholders. Further we will show the integration of a multi-cluster and multi-tenant Platform into our existing IT factory.
Toyota and Strategic Collaboration with the CommunityShane Coughlan
Toyota has built strong ties into the global open source development community and into areas related to open source patent non-aggression and copyright compliance. During the Legal & Licensing Workshop in Barcelona during April 2018 Endo San from the Toyota legal team explained their approach and the benefits it brings.
Application developers are key to the success of an edge compute strategy. They are the backbone for any digital ecosystem and their requirements drive the platform architecture. Edge computing is no different. In this talk, we will focus on some key requirements, challenges and possible solutions for a developer centric architecture for multi-access edge computing including abstraction of the service provider’s network complexity, low footprint cloud native builder models, micro-services, hardware abstractions, intelligence layers and massive monitoring of application instances.
About the speaker: Shamik Mishra is currently Assistant Vice President (AVP), Technology and Innovation at Aricent. He is a practice leader for new product architectures. He has extensive experience and contributions in software development in cloud, wireless technologies, edge computing and platform software. His research interests are Network Function Virtualization (NFV), Cloud and edge computing and Machine Learning (ML). He has spoken in several conferences and his work is regularly covered in the media. Shamik has a bachelor’s and a master’s degree from Indian Institute of Technology (IIT) Kharagpur, India.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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