Web assembly: a brief overview
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WebAssembly (WASM) allows code written in languages like C/C++ to run as web apps. It defines a binary format for fast execution across browsers. WASM code runs in the same sandbox as JavaScript, with JavaScript loading and executing WASM. Many languages can compile to WASM, including C/C++, Rust, Java, Kotlin, Go, and .NET languages. Frameworks like Emscripten and Rustwasm enable low-level WASM, while Blazor provides a complete solution for typical web app development.
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Recently, a new piece of tech appeared on the landscape - WebAssembly. It became 4th official language on the Web (following HTML, CSS and JavaScript) and was initially meant to run in the browser and improve CSR. It quickly turned out that WebAssembly on the server is also a thing and can revolutionise the way we think of web apps.
Some providers like Fastly and Cloudflare adopted WebAssembly and allow you to run custom code at the edge. That opens up completely new possibilities - authentication, personalised content rendering, A/B testing - you name it. Everything as close to end users as possible.
During my talk I’d like to show you what edge computing offers at this stage and how it can be integrated with AEM as a Cloud Service.
First Step towards WebAssembly with Rust
There are certain use cases where JavaScript is not performant enough. But fortunately, JavaScript is no longer the only language that runs in the browser. WebAssembly (Wasm) is a technology that can revolutionize how we build apps for the web browser.
Take the example of eBay. Just last year, the online marketplace revealed how it improved the performance of a demanding web app by 50x using WebAssembly. In certain use cases where performance demands are high, WebAssembly surpasses JavaScript in terms of loading time, execution speed, memory usage, debugging, portability and more.
Using WebAssembly with Rust, especially for backend development, is even better as it is memory safe and ships with an extremely minimal runtime.
This webinar introduces you to the concept of WebAssembly and the Rust programming language along with a hands-on example of using both these technologies in practice.
WebAssemlby vs JavaScript
Slides from talk WebAssemlby vs JavaScript on jsfest.com.ua
Comparing WebAssemlby vs JavaScript in key features.
Mean stack
The document provides an overview of the MEAN stack, which is a full-stack JavaScript framework that simplifies and accelerates web application development using MongoDB, Express, AngularJS, and Node.js. It discusses each component of the MEAN stack in detail, including their features and advantages. The key advantages are that MEAN allows for fast development of robust and maintainable web applications using a single programming language across both front-end and back-end. However, MongoDB is not as robust as an SQL database and JavaScript lacks coding guidelines.
The shift to the edge
WebAssembly became 4th official language on the Web (following HTML, CSS and JavaScript) and was initially meant to run in the browser in order to improve client side rendering. It quickly turned out that WebAssembly on the server is also a thing and can revolutionise the way we think of web applications. Fastly and Cloudflare adopted WebAssembly and allow you to run custom code at the edge. That opens up completely new possibilities - authentication, personalised content rendering, A/B testing - you name it. Everything as close to end users as possible.
Oleksandr Skachkov "How to run WebAssembly in your React web application"
[Lightning talk]
A new era in Web Development is coming. WebAssembly will allow running many new languages within your browsers, and change the way how we build web applications. In this lighting talks, I'll show how to easily run Rust modules within your react application, with using Webpack and WebAssembly.
OSMC 2023 | IGNITE: Serving Server-Side WASM with Web Awareness with NGINX Un...
WebAssembly (Wasm) promises to change the nature of web applications. However, we should take a look at the needs of the apps decoupled from the browser.
Enter open source NGINX Unit. Unit is an application runtime for web apps and APIs. It handles the HTTP(S) front end, request routing and serving of assets, including the hand-off of dynamic requests. In short, Unit decouples the HTTP server from the application process. And it’s an excellent fit for Wasm’s sandboxed execution and linear memory byte streams.
Blazor v1.1
This document provides an overview of Web Assembly (WASM) and Blazor. It discusses how WASM allows code to run in browsers without plugins and is optimized for speed and size. Examples of WASM usage include games, video editors, and CAD tools. Blazor is introduced as a framework that runs .NET code in browsers using WASM. It follows an MVVM pattern and enables two-way data binding. The document compares Blazor to other technologies and provides resources for learning more.
Web (dis)assembly
This document provides an overview of WebAssembly (WASM) and analyzes its attack surface. It begins with a brief history of WASM and describes its Minimum Viable Product (MVP) 1.0 specification, which defines its instruction set and file format. It then discusses WASM's implementation in web browsers and interaction with JavaScript, highlighting its potential attack surface. Examples of past vulnerabilities leveraging WASM are also provided, such as CVE-2017-5116 which used a race condition to redirect execution to attacker-controlled code. The document concludes by discussing the future of WASM and taking questions.
Similar to Web assembly: a brief overview (20)
JS Fest 2018. Александр Скачков. WebAssembly vs JavaScript
JS Fest 2018. Александр Скачков. WebAssembly vs JavaScript
WebAssembly - czy dzisiaj mi się to przyda do pracy?
WebAssembly - czy dzisiaj mi się to przyda do pracy?
Oleksandr Skachkov - WebAssembly vs JavaScript: What is faster?
Oleksandr Skachkov - WebAssembly vs JavaScript: What is faster?
Past, present, and future of web assembly - Devfest Nantes 2017
Past, present, and future of web assembly - Devfest Nantes 2017
Oleksandr Skachkov "How to run WebAssembly in your React web application"
Oleksandr Skachkov "How to run WebAssembly in your React web application"
OSMC 2023 | IGNITE: Serving Server-Side WASM with Web Awareness with NGINX Un...
OSMC 2023 | IGNITE: Serving Server-Side WASM with Web Awareness with NGINX Un...
Recently uploaded
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
Essentials of Automations: Exploring Attributes & Automation Parameters
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
Mutation Testing for Task-Oriented Chatbots
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
Northern Engraving | Nameplate Manufacturing Process - 2024
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
The best part is you can achieve this without building a custom workflow! Say goodbye to the hassle of using separate automations to call APIs. By seamlessly integrating within App Studio, you can now easily streamline your workflow, while gaining direct access to our Connector Catalog of popular applications.
We’ll discuss and demo the benefits of UiPath Apps and connectors including:
Creating a compelling user experience for any software, without the limitations of APIs.
Accelerating the app creation process, saving time and effort
Enjoying high-performance CRUD (create, read, update, delete) operations, for
seamless data management.
Speakers:
Russell Alfeche, Technology Leader, RPA at qBotic and UiPath MVP
Charlie Greenberg, host
"Choosing proper type of scaling", Olena Syrota
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
GNSS spoofing via SDR (Criptored Talks 2024)
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Leveraging the Graph for Clinical Trials and Standards
Katja Glaß
OpenStudyBuilder Community Manager - Katja Glaß Consulting
Marius Conjeaud
Principal Consultant - Neo4j
Dandelion Hashtable: beyond billion requests per second on a commodity server
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Recently uploaded (20)
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Essentials of Automations: Exploring Attributes & Automation Parameters
Essentials of Automations: Exploring Attributes & Automation Parameters
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...
Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
Leveraging the Graph for Clinical Trials and Standards
Leveraging the Graph for Clinical Trials and Standards
Dandelion Hashtable: beyond billion requests per second on a commodity server
Dandelion Hashtable: beyond billion requests per second on a commodity server
Web assembly: a brief overview
- 2. Problem Sell feature - Fast code execution ● Faster than JS ● Zero configuration ● Safe ● Cross platform ● Easy to use
- 3. Before WASM Winners ● JavaScript ● V8 ● HTML5 Losers ● ActiveX ● Flash ● Silverlight ● asm.js ● Native client ● Java applets
- 4. About Asm.js Wikipedia - asm.js is a subset of JavaScript designed to allow computer software written in languages such as C to be run as web applications. C/C++ => LLVM => Emscripten => asm.js
- 5. What is WebAssembly? WebAssembly is a binary instruction format for a stack-based virtual machine. ● Binary ● Virtual machine ● Stack-based (no heap)
- 6. WebAssembly High-Level Goals ● Define a portable, size- and load-time-efficient binary format ● threads, zero cost exceptions ● execute in the same semantic universe as JavaScript ● allow synchronous calls to and from JavaScript ● define a human-editable text format to support View Source functionality
- 7. Wasm Fiddle
- 8. WASM and Javascript ● Only JS loads and executes WASM ● WASM and JS share the same sandbox
- 10. Supported by languages ● C/C++ - emscripten ● Rust ● Java - TeaVM, JWebAssemly, Bytecoder ● Kotlin - Kotlin Native LLVM backend ● Go ● .Net, C#, F# - Blazor https://github.com/appcypher/awesome-wasm-langs
- 11. WASM frameworks ● Emscripten, Rustwasm - low level, not convenient to work with html and css. Good for heavy work. Not UI. ● Blazor - inspired by VueJS. Most complete solution for typical web applications.