Welcome!

@CloudExpo Authors: Elizabeth White, John Katrick, Pat Romanski, Liz McMillan, Progress Blog

Related Topics: @CloudExpo, Microservices Expo, Containers Expo Blog, Machine Learning , Agile Computing

@CloudExpo: Blog Feed Post

The Need for (HTML5) Speed

The importance of understanding acceleration techniques in the face of increasing mobile and HTML5 adoption

An old English proverb observes that "Even a broken clock is right twice a day." A more modern idiom involves a blind squirrel and an acorn, and I'm certain there are many other culturally specific nuggets of wisdom that succinctly describe what is essentially blind luck.

The proverb and modern idioms fit well the case of modern acceleration techniques as applied to content delivered to mobile devices. A given configuration of options and solutions may inadvertently be "right" twice a day purely by happenstance, but the rest of the time they may not be doing all that much good.

html5adoptionratesevansdata2012

With HTML5 adoption increasing rapidly across the globe, the poor performance of parsing on mobile devices will require more targeted and intense use of acceleration and optimization solutions.

THE MOBILE LAST MILES

One of the reasons content deliver to mobile devices is so challenging is the number of networks and systems through which the content must flow. Unlike WiFi connected devices, which traverse controllable networks as well as the Internet, content delivered to mobile devices connected via carrier networks must also traverse the mobile (carrier) network. Add to that challenge the constrained processing power of mobile devices imposed by carriers and manufacturers alike, and delivering content to these devices in an acceptable timeframe becomes quite challenging. Organizations must contend not only with network conditions across three different networks but also capabilities and innate limitations of the devices themselves. Such limitations include processing capabilities, connection models, and differences in web application support.

Persistence and in-memory caching is far more limited on mobile devices, making reliance on traditional caching strategies as a key component of acceleration techniques less than optimal. Compression and de-duplication of data even over controlled WAN links when mobile devices are in WiFi mode may not be as helpful as they are for desktop and laptop counterparts given mobile hardware limitations.

Difference in connection models – on mobile devices connections are sporadic, shorter-lived, and ad-hoc – render traditional TCP-related enhancements ineffective. TCP slow-start mechanisms, for example, are particularly frustrating under the hood for mobile device connections because connections are constantly being dropped and restarted, forcing TCP to begin again very slowly. TCP, in a nutshell, was designed for fixed-networks, not mobile networks. A good read on this topic is Ben Strong’s “Google and Microsoft Cheat on Slow-Start. Should You?” His testing (in 2010) showed both organizations push the limits for the IW (initial window) higher than the RFC allows, with Microsoft nearly ignoring the limitations all together. Proposals to increase the IW in the RFC to 10 have been submitted, but thus far there does not appear to be consensus on whether or not to allow this change. Also not discussed is the impact of changing the IW on fixed (desktop, laptop, LAN) connected devices. The assumption being that IW is specified as it is because it was optimal for fixed end-points and changing that would be detrimental to performance for those devices.  webappperf-devops

The impact of TCP on mobile performance (and vice-versa) should not be underestimated. CloudFare has a great blog post on the impact of mobility on TCP-related performance concluding that:

TCP would actually work just fine on a phone except for one small detail: phones don't stay in one location. Because they move around (while using the Internet) the parameters of the network (such as the latency) between the phone and the web server are changing and TCP wasn't designed to detect the sort of change that's happening.

-- CloudFare blog: Why mobile performance is difficult

One answer is more intelligent intermediate acceleration components, capable of detecting not only the type of end-point initiating the connection (mobile or fixed) but actually doing something about it, i.e. manipulating the IW and other TCP-related parameters on the fly. Dynamically and intelligently.

Of course innate parsing and execution performance on mobile devices contributes significantly to the perception of performance on the part of the end-user. While HTML5 may be heralded as a solution to cross-platform, cross-environment compatibility issues, it brings to the table performance challenges that will need to be overcome.

http://thenextweb.com/dd/2012/05/22/html5-runs-up-to-thousands-of-times-slower-on-mobile-devices-report/

In the latest research by Spaceport.io on the performance of HTML5 on desktop vs smartphones, it appears that there are performance issues for apps and in particular games for mobile devices.

Spaceport.io used its own Perfmarks II benchmarking suite to test HTML rendering techniques across desktop and mobile browsers. Its latest report says:

We found that when comparing top of the line, modern smartphones with modern laptop computers, mobile browsers were, on average, 889 times slower across the various rendering techniques tested. At best the iOS phone was roughly 6 times slower, and the best Android phone 10 times slower. At worst, these devices were thousands of times slower.

Combining the performance impact of parsing HTML5 on mobile devices with mobility-related TCP impacts paints a dim view of performance for mobile clients in the future. Especially as improving the parsing speed of HTML5 is (mostly) out of the hands of operators and developers alike. Very little can be done to impact the parsing speed aside from transformative acceleration techniques, many of which are often not used for fixed client end-points today. Which puts the onus back on operators to use the tools at their disposal (acceleration and optimization) to improve delivery as a means to offset and hopefully improve the overall performance of HTML5-based applications to mobile (and fixed) end-points.

DON’T RELY on BLIND LUCK

Organizations seeking to optimize delivery to mobile and traditional end-points need more dynamic and agile infrastructure solutions capable of recognizing the context in which requests are made and adjusting delivery policies – from TCP to optimization and acceleration – on-demand, as necessary to ensure the best delivery performance possible. Such infrastructure must be able to discern whether the improvements from minification and image optimization will be offset by TCP optimizations designed for fixed end-points interacting with mobile end-points – and do something about it. It’s not enough to configure a delivery chain comprised of acceleration and optimization designed for delivery of content to traditional end-points because the very same services that enhance performance for fixed end-points may be degrading performance for mobile end-points. It may be that twice a day, like a broken clock, the network and end-point parameters align in such a way that the same services enhance performance for both fixed and mobile end-points. But relying on such a convergence of conditions as a performance management strategy is akin to relying on blind luck.

Addressing mobile performance requires a more thorough understanding of acceleration techniques – particularly from the perspective of what constraints they best address and under what conditions. Trying to leverage the browser cache, for example, is a great way to improve fixed end-point performance, but may backfire on mobile devices because of limited capabilities for caching. On the other hand, HTML5 introduces client-side cache APIs that may be useful, but are very different from previous HTML caching directives that supporting both will require planning and a flexible infrastructure for execution. In many ways this API will provide opportunities to better leverage client-side caching capabilities, but will require infrastructure support to ensure targeted caching policies can be implemented.

As HTML5 continues to become more widely deployed, it’s important to understand the various acceleration and optimization techniques, what each is designed to overcome, and what networks and platforms they are best suited to serve in order to overcome inherent limitations of HTML5 and the challenge of mobile delivery.

Read the original blog entry...

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

@CloudExpo Stories
In his general session at 21st Cloud Expo, Greg Dumas, Calligo’s Vice President and G.M. of US operations, discussed the new Global Data Protection Regulation and how Calligo can help business stay compliant in digitally globalized world. Greg Dumas is Calligo's Vice President and G.M. of US operations. Calligo is an established service provider that provides an innovative platform for trusted cloud solutions. Calligo’s customers are typically most concerned about GDPR compliance, application p...
Mobile device usage has increased exponentially during the past several years, as consumers rely on handhelds for everything from news and weather to banking and purchases. What can we expect in the next few years? The way in which we interact with our devices will fundamentally change, as businesses leverage Artificial Intelligence. We already see this taking shape as businesses leverage AI for cost savings and customer responsiveness. This trend will continue, as AI is used for more sophistica...
The 22nd International Cloud Expo | 1st DXWorld Expo has announced that its Call for Papers is open. Cloud Expo | DXWorld Expo, to be held June 5-7, 2018, at the Javits Center in New York, NY, brings together Cloud Computing, Digital Transformation, Big Data, Internet of Things, DevOps, Machine Learning and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding busin...
SYS-CON Events announced today that Synametrics Technologies will exhibit at SYS-CON's 22nd International Cloud Expo®, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Synametrics Technologies is a privately held company based in Plainsboro, New Jersey that has been providing solutions for the developer community since 1997. Based on the success of its initial product offerings such as WinSQL, Xeams, SynaMan and Syncrify, Synametrics continues to create and hone inn...
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...
In his session at 21st Cloud Expo, Raju Shreewastava, founder of Big Data Trunk, provided a fun and simple way to introduce Machine Leaning to anyone and everyone. He solved a machine learning problem and demonstrated an easy way to be able to do machine learning without even coding. Raju Shreewastava is the founder of Big Data Trunk (www.BigDataTrunk.com), a Big Data Training and consulting firm with offices in the United States. He previously led the data warehouse/business intelligence and B...
The past few years have brought a sea change in the way applications are architected, developed, and consumed—increasing both the complexity of testing and the business impact of software failures. How can software testing professionals keep pace with modern application delivery, given the trends that impact both architectures (cloud, microservices, and APIs) and processes (DevOps, agile, and continuous delivery)? This is where continuous testing comes in. D
Cloud Expo | DXWorld Expo have announced the conference tracks for Cloud Expo 2018. Cloud Expo will be held June 5-7, 2018, at the Javits Center in New York City, and November 6-8, 2018, at the Santa Clara Convention Center, Santa Clara, CA. Digital Transformation (DX) is a major focus with the introduction of DX Expo within the program. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive ov...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...
"WineSOFT is a software company making proxy server software, which is widely used in the telecommunication industry or the content delivery networks or e-commerce," explained Jonathan Ahn, COO of WineSOFT, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"Evatronix provides design services to companies that need to integrate the IoT technology in their products but they don't necessarily have the expertise, knowledge and design team to do so," explained Adam Morawiec, VP of Business Development at Evatronix, in this SYS-CON.tv interview at @ThingsExpo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
In a recent survey, Sumo Logic surveyed 1,500 customers who employ cloud services such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). According to the survey, a quarter of the respondents have already deployed Docker containers and nearly as many (23 percent) are employing the AWS Lambda serverless computing framework. It’s clear: serverless is here to stay. The adoption does come with some needed changes, within both application development and operations. Tha...
Digital Transformation (DX) is not a "one-size-fits all" strategy. Each organization needs to develop its own unique, long-term DX plan. It must do so by realizing that we now live in a data-driven age, and that technologies such as Cloud Computing, Big Data, the IoT, Cognitive Computing, and Blockchain are only tools. In her general session at 21st Cloud Expo, Rebecca Wanta explained how the strategy must focus on DX and include a commitment from top management to create great IT jobs, monitor ...
"Digital transformation - what we knew about it in the past has been redefined. Automation is going to play such a huge role in that because the culture, the technology, and the business operations are being shifted now," stated Brian Boeggeman, VP of Alliances & Partnerships at Ayehu, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Digital transformation is about embracing digital technologies into a company's culture to better connect with its customers, automate processes, create better tools, enter new markets, etc. Such a transformation requires continuous orchestration across teams and an environment based on open collaboration and daily experiments. In his session at 21st Cloud Expo, Alex Casalboni, Technical (Cloud) Evangelist at Cloud Academy, explored and discussed the most urgent unsolved challenges to achieve f...
In his Opening Keynote at 21st Cloud Expo, John Considine, General Manager of IBM Cloud Infrastructure, led attendees through the exciting evolution of the cloud. He looked at this major disruption from the perspective of technology, business models, and what this means for enterprises of all sizes. John Considine is General Manager of Cloud Infrastructure Services at IBM. In that role he is responsible for leading IBM’s public cloud infrastructure including strategy, development, and offering m...
There is a huge demand for responsive, real-time mobile and web experiences, but current architectural patterns do not easily accommodate applications that respond to events in real time. Common solutions using message queues or HTTP long-polling quickly lead to resiliency, scalability and development velocity challenges. In his session at 21st Cloud Expo, Ryland Degnan, a Senior Software Engineer on the Netflix Edge Platform team, will discuss how by leveraging a reactive stream-based protocol,...
"I focus on what we are calling CAST Highlight, which is our SaaS application portfolio analysis tool. It is an extremely lightweight tool that can integrate with pretty much any build process right now," explained Andrew Siegmund, Application Migration Specialist for CAST, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
As many know, the first generation of Cloud Management Platform (CMP) solutions were designed for managing virtual infrastructure (IaaS) and traditional applications. But that's no longer enough to satisfy evolving and complex business requirements. In his session at 21st Cloud Expo, Scott Davis, Embotics CTO, explored how next-generation CMPs ensure organizations can manage cloud-native and microservice-based application architectures, while also facilitating agile DevOps methodology. He expla...