Tag Archive | "User Experience"
Is IPTV coming to your home sooner than expected?
In today’s Business section of the New York Times, there is an article by Brian Stelter (December 22, 2009) about a proposal by Apple computer to offer TV subscription packages via the Internet. The article points out that ABC and CBS are actively considering joining the Apple venture. Disney, who owns ABC, was the first [...]
Continue reading...Improving the Quality for the End User
Monday, December 21, 2009
One student at a time… Recently, I visited a company that develops and distributes software for Independent School District’s across USA. Their main product, originally developed for challenged kids, centers around dynamic computerized teaching and testing programs. This product proved to be so successful among this population that the company adapted it for other kids [...]
Continue reading...Cloud Computing to the Desktop
Wednesday, December 9, 2009
VMware is releasing a new technology, developed by Teradici that may greatly improve the performance of remote desktops, quintessence filling a gap in the Cloud Computing paradigm. It will allow the use of PCoverIP protocol instead of using slower methods like RDP. PCoIP is a type of display protocol used by remote desktops when doing [...]
Continue reading...Impact of Latency on Cloud Computing
Tuesday, December 8, 2009
The new buzzword around the IT block is “Cloud Computing”, the ability to avoid deploying costly infrastructure on each location by contracting a “virtual” infrastructure environment from dedicated vendors. Need to expand? Just call your provider and double your server capacity and triple your storage. However, we may need to apply a sobriety test, where [...]
Continue reading...Building Applications for a Remote Datacenter Part 2 Application Efficiency Metrics
Thursday, November 5, 2009
In the previous post we identified the Wide Area Network and the impairments that it introduces as a key reason for why a local user (let’s say in NYC) experiences a faster application than a user that is remote to his datacenter (let’s say in Tokyo). I also presented a question to the group: “We [...]
Continue reading...Hosted Load Testing II
Friday, October 30, 2009
My friend Mark Tomlinson from HP recently wrote an informative blog about “Understanding the language of hosted load testing.” The blog touched on two competing approaches to application performance testing that were referenced as “behind the firewall” and “outside the firewall”. Behind the firewall testing usually means testing in a lab environment such as a [...]
Continue reading...Analyzing and remediating latency sensitive applications part 2 Oracle Clinical
Thursday, September 17, 2009
In the previous post http://www.shunra.com/shunrablog/index.php/2009/08/14/data-center-relocation-questions-and-answers-part-1/ I presented an example of a common performance problem with applications that host executables on a remote shared drive. As common as that problem is, it is usually a legacy problem, most new applications follow a more best practices architecture usually involving a web based front end for the application. [...]
Continue reading...Cloud computing adoption rises so what should you do about it?
Friday, September 11, 2009
I have been meaning to address the impact that cloud computing has on performance engineering but haven’t had the time to rigorously tackle this issue. After all, there are serious implications both for vendors that deliver applications and services from the Cloud as well as enterprises that are rapidly migrating more and more services to [...]
Continue reading...Slow network users take down an IIS based ASP application server
Friday, January 23, 2009
We often mention the fact that slow network users can impact the server’s ability to scale and consequently degrade user performance (for example here ). This is fundamentally attributed to the fact that slow network users (due to high network latency or limited bandwidth) occupy server resources for longer periods of time per transaction. This [...]
Continue reading...User Experience with Enterprise Web Applications
Tuesday, December 2, 2008
I recently read a very interesting white paper that I found on CIO.com titled “Providing Around-the-Clock Customer Satisfaction.” It focused on how critical APM was to any business where online customer experience can have immediate revenue implications. There are some interesting statistics in the paper noted from a survey done by IDG Research Services on [...]
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Tuesday, December 22, 2009
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