|By Don MacVittie||
|November 26, 2012 08:00 AM EST||
I was talking with the team working on our yard – they’re putting in new sidewalks and a patio, amongst other things – and we got on the subject of gutters. When we bought this house, it came with no gutters, and that has, over time, caused some serious damage to the base of the house. Wood and plaster do not take it well when water pours down on them at the rate that, oh, say melting snow in the spring sends it down. So I had them get us an estimate for gutters on the entire house. Some of the work they’re estimating is running the gutters right to the storm drain, which is not normally cheap, but they had both the front and back yards all ripped up, so it is a good time to do it, both cheaper and less messy, since the mess is already there.
So I told them to do it, because I don’t want the sod they’re going to lay to be ripped up in a year when we decide to put the gutters on, and certainly don’t want them to rip up the patio and sidewalks they’re putting in now just to lay pipe later – that would be nearly impossible.
And that, in a nutshell, is the same reason why FPGAs are used in a lot of high-tech firms. If the device is my yard/sidewalks, and I have to choose between a custom ASIC versus an FPGA, the custom ASIC would require me to rip up the yard later, while the FPGA is planning ahead for change.
Let me explain. With an FPGA, the circuits are programmed. Not like software, but code sets up the circuits, and then they are pretty equivalent to having them be hard-wired. With an ASIC, they really are hard-wired. So six months later, a change to the system – be it added functionality or fixes to existing logic – will be far easier with an FPGA than an ASIC. With an FPGA, the design file is opened, the changes made and tested, then the config is compiled and delivered to manufacturing. At that point, the devices produced with the new config file will have the new functionality. With ASICs, you change the design, send it to a manufacturing shop, wait for the shop to produce a small run (working it into their schedule that is), test the result, and then do a full production run. Then the new ASIC has to be put on the assembly line to replace the old ASIC. The difference is astronomical in terms of time required and even more so in terms of cost.
Of course there are some trade-offs. Every architectural choice results in trade-offs, and anyone who tells you differently is indeed trying to sell you something, and they don’t want to admit the trade-offs used to produce what they’re selling.
One of the big concerns out there about FPGAs is that they’re less secure. In the most vague, general sense, this is true. But in practical use scenarios, it most certainly isn’t. Here are the concerns, and why they’re over-rated (note that these notes are adapted from responses to my questions put to Clint Harames of F5<’s most excellent FPGA team, I cannot vouch for other production except to say the other teams I was involved with outside of F5 were similar):
- It’s field programmable! What if it gets modified? In F5’s case, none of the programmability is accessible from the outside. There is no Ethernet or coding hack that can reprogram it, because that functionality is not accessible. Other vendors work to a differing standard, so definitely worth checking, though I would remind you that it is almost never going to be as easy to hack an FPGA as it is to hack software or COTS hardware.
- Okay, but can’t it be erased and destroy the device? In theory yes (though erasing it is only effective until the next boot – non-destructive, so-to-speak), but if “modify” functionality is not accessible, then it can’t be erased easily. The caveat is that there is of course a reset pin on the chip, but if the ne’er-do-well has physical access to your device, time to disassemble the device, and a handy pinout for the FPGA chip you’re using, I’m going to guess you have bigger problems than whether they can reset your FPGA.
- If it’s programmable, can’t the program be read out and modified? Again, that functionality can be enabled on the chip, and you can check with your device manufacturer to see if they leave it enabled for production devices. Remember, it is a twofold story here, in F5’s case, we don’t generally want to reprogram production devices and don’t want to make reverse engineering our product any easier than it has to be, while we want to protect you from someone modifying a production device. So when the design is done and meets all test criteria, we at F5 turn access to this functionality off completely before shipping product is produced. Definitely worth checking with your vendor to find out what they are doing.
Again, your vendor may do things differently, if, for some reason they need the ability to reprogram the FPGA in your device.
For you, the IT staffer, the benefits are pretty straight-forward. The device you purchase will be closer to “up to date” because of the time-to-market benefits of FPGAs, it will be cheaper because of the reduced up-front costs (note that like everything involving costs, economies of scale can change the “cheaper” part to be untrue, depending upon the costs involved), and the resulting device will be far, far faster than the equivalent processing done on a general purpose CPU. In the end, it is hardware doing the processing, and FPGAs have concurrency that general purpose CPUs can only match with a huge number of cores, even then since the OS handles the scheduling on a general purpose CPU, many cores does not normally make up the performance difference.
There are some who think the advent of virtualization and virtualized appliances should curb the use of FPGAs, as the virtual version has to include all the functionality. While this is, on the surface, a reasonable argument, it has a flaw. FPGAs are MUCH faster than software will ever be, let alone a VM running on a host with who-knows-how-many other VMs sharing its resources. So in cases like F5, where there is a hardware and a software version, the key is to be able to run in both. TMOS, F5’s OS for traffic management, uses hardware if available, software if not. This offers the best of both worlds – acceptable traffic management in a VM, and high-performance traffic management in hardware.
Next time I’ll delve into specific functionality that on our hardware platforms is implemented in FPGA, and how that helps you do your job in IT, today was more of a “what are the risks, what are the benefits” in a generic sense.
In 2014, Amazon announced a new form of compute called Lambda. We didn't know it at the time, but this represented a fundamental shift in what we expect from cloud computing. Now, all of the major cloud computing vendors want to take part in this disruptive technology. In his session at 20th Cloud Expo, John Jelinek IV, a web developer at Linux Academy, will discuss why major players like AWS, Microsoft Azure, IBM Bluemix, and Google Cloud Platform are all trying to sidestep VMs and containers...
Feb. 26, 2017 05:30 PM EST Reads: 2,137
As Enterprise business moves from Monoliths to Microservices, adoption and successful implementations of Microservices become more evident. The goal of Microservices is to improve software delivery speed and increase system safety as scale increases. Documenting hurdles and problems for the use of Microservices will help consultants, architects and specialists to avoid repeating the same mistakes and learn how and when to use (or not use) Microservices at the enterprise level. The circumstance w...
Feb. 26, 2017 03:45 PM EST Reads: 1,619
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From ...
Feb. 26, 2017 03:45 PM EST Reads: 2,674
With 10 simultaneous tracks, keynotes, general sessions and targeted breakout classes, Cloud Expo and @ThingsExpo are two of the most important technology events of the year. Since its launch over eight years ago, Cloud Expo and @ThingsExpo have presented a rock star faculty as well as showcased hundreds of sponsors and exhibitors! In this blog post, I provide 7 tips on how, as part of our world-class faculty, you can deliver one of the most popular sessions at our events. But before reading the...
Feb. 26, 2017 03:30 PM EST Reads: 8,922
This week's news brings us further reminders that if you're betting on cloud, you're headed in the right direction. The cloud is growing seven times faster than the rest of IT, according to IDC, with a 25% spending increase just from 2016 to 2017. SaaS still leads the pack, with an estimated two-thirds of public cloud spending going that way. Large enterprises, with more than 1,000 employees, are predicted to account for more than half of cloud spending and have the fastest annual growth rate.
Feb. 26, 2017 02:45 PM EST Reads: 1,080
Microservices (μServices) are a fascinating evolution of the Distributed Object Computing (DOC) paradigm. Initial design of DOC attempted to solve the problem of simplifying developing complex distributed applications by applying object-oriented design principles to disparate components operating across networked infrastructure. In this model, DOC “hid” the complexity of making this work from the developer regardless of the deployment architecture through the use of complex frameworks, such as C...
Feb. 26, 2017 01:45 PM EST Reads: 1,586
@DevOpsSummit at Cloud taking place June 6-8, 2017, at Javits Center, New York City, is co-located with the 20th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long developm...
Feb. 26, 2017 12:30 PM EST Reads: 2,032
DevOps and microservices are permeating software engineering teams broadly, whether these teams are in pure software shops but happen to run a business, such Uber and Airbnb, or in companies that rely heavily on software to run more traditional business, such as financial firms or high-end manufacturers. Microservices and DevOps have created software development and therefore business speed and agility benefits, but they have also created problems; specifically, they have created software securi...
Feb. 26, 2017 11:00 AM EST Reads: 4,127
In today's enterprise, digital transformation represents organizational change even more so than technology change, as customer preferences and behavior drive end-to-end transformation across lines of business as well as IT. To capitalize on the ubiquitous disruption driving this transformation, companies must be able to innovate at an increasingly rapid pace. Traditional approaches for driving innovation are now woefully inadequate for keeping up with the breadth of disruption and change facing...
Feb. 26, 2017 10:45 AM EST Reads: 8,145
SYS-CON Events announced today that Outlyer, a monitoring service for DevOps and operations teams, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Outlyer is a monitoring service for DevOps and Operations teams running Cloud, SaaS, Microservices and IoT deployments. Designed for today's dynamic environments that need beyond cloud-scale monitoring, we make monitoring effortless so you...
Feb. 26, 2017 10:30 AM EST Reads: 2,433
Cloud Expo, Inc. has announced today that Andi Mann and Aruna Ravichandran have been named Co-Chairs of @DevOpsSummit at Cloud Expo 2017. The @DevOpsSummit at Cloud Expo New York will take place on June 6-8, 2017, at the Javits Center in New York City, New York, and @DevOpsSummit at Cloud Expo Silicon Valley will take place Oct. 31-Nov. 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Feb. 26, 2017 10:15 AM EST Reads: 2,449
In recent years, containers have taken the world by storm. Companies of all sizes and industries have realized the massive benefits of containers, such as unprecedented mobility, higher hardware utilization, and increased flexibility and agility; however, many containers today are non-persistent. Containers without persistence miss out on many benefits, and in many cases simply pass the responsibility of persistence onto other infrastructure, adding additional complexity.
Feb. 26, 2017 09:30 AM EST Reads: 1,571
All clouds are not equal. To succeed in a DevOps context, organizations should plan to develop/deploy apps across a choice of on-premise and public clouds simultaneously depending on the business needs. This is where the concept of the Lean Cloud comes in - resting on the idea that you often need to relocate your app modules over their life cycles for both innovation and operational efficiency in the cloud. In his session at @DevOpsSummit at19th Cloud Expo, Valentin (Val) Bercovici, CTO of Soli...
Feb. 26, 2017 08:45 AM EST Reads: 1,431
DevOps is often described as a combination of technology and culture. Without both, DevOps isn't complete. However, applying the culture to outdated technology is a recipe for disaster; as response times grow and connections between teams are delayed by technology, the culture will die. A Nutanix Enterprise Cloud has many benefits that provide the needed base for a true DevOps paradigm. In his general session at 20th Cloud Expo, Chris Brown, a Solutions Marketing Manager at Nutanix, will explore...
Feb. 26, 2017 08:30 AM EST Reads: 1,747
Financial Technology has become a topic of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 20th Cloud Expo at the Javits Center in New York, June 6-8, 2017, will find fresh new content in a new track called FinTech.
Feb. 26, 2017 06:00 AM EST Reads: 6,416
While DevOps most critically and famously fosters collaboration, communication, and integration through cultural change, culture is more of an output than an input. In order to actively drive cultural evolution, organizations must make substantial organizational and process changes, and adopt new technologies, to encourage a DevOps culture. Moderated by Andi Mann, panelists discussed how to balance these three pillars of DevOps, where to focus attention (and resources), where organizations might...
Feb. 26, 2017 01:30 AM EST Reads: 5,257
The rise of containers and microservices has skyrocketed the rate at which new applications are moved into production environments today. While developers have been deploying containers to speed up the development processes for some time, there still remain challenges with running microservices efficiently. Most existing IT monitoring tools don’t actually maintain visibility into the containers that make up microservices. As those container applications move into production, some IT operations t...
Feb. 25, 2017 10:00 PM EST Reads: 1,405
We call it DevOps but much of the time there’s a lot more discussion about the needs and concerns of developers than there is about other groups. There’s a focus on improved and less isolated developer workflows. There are many discussions around collaboration, continuous integration and delivery, issue tracking, source code control, code review, IDEs, and xPaaS – and all the tools that enable those things. Changes in developer practices may come up – such as developers taking ownership of code ...
Feb. 25, 2017 10:00 PM EST Reads: 2,914
"Plutora provides release and testing environment capabilities to the enterprise," explained Dalibor Siroky, Director and Co-founder of Plutora, in this SYS-CON.tv interview at @DevOpsSummit, held June 9-11, 2015, at the Javits Center in New York City.
Feb. 25, 2017 08:45 PM EST Reads: 4,864
For organizations that have amassed large sums of software complexity, taking a microservices approach is the first step toward DevOps and continuous improvement / development. Integrating system-level analysis with microservices makes it easier to change and add functionality to applications at any time without the increase of risk. Before you start big transformation projects or a cloud migration, make sure these changes won’t take down your entire organization.
Feb. 25, 2017 06:30 PM EST Reads: 1,486