Author Archives | Amichai Lesser
Amichai Lesser - who has written 37 posts on Application Performance Engineering Blog – Shunra Software.
Can Mobile Performance Engineering Help Conserve Battery Life?
Can Mobile Performance Engineering Help Conserve Battery Life? The following article builds a case for how performance engineering can help build more energy efficient mobile applications. Very interesting read, with strong reasons for why mobile performance engineering should be a critical part of mobile application development. http://www.research.att.com/articles/featured_stories/2011_03/201102_Energy_efficient?fbid=dekBGE2Kx9k I can picture how energy conservation will soon [...]
Continue reading...Video over IP and Video Streaming – Managing Video Quality and Performance
Tuesday, August 16, 2011
I recently had the privilige to work with one of the world’s largest cable and media provider. They were challenged with managing the quality of their new adaptive streaming video player. This was such a great example to the value delivered from using Shunra on such projects, that I took the time to summarize it [...]
Continue reading...Application Performance Engineering and SLAs
Tuesday, February 1, 2011
The following article by Jim Metzler covers the value in setting SLAs between IT and the business units that it serves. It does a nice job at mapping the role of SLAs to the application performance engineering process. What resonated well with me was a quote from Jim taken from “Alice in Wonderland” – “If [...]
Continue reading...Performance Engineering – Why so many companies don’t get it – Part 3
Tuesday, December 21, 2010
In the previous 2 posts we described several ways in which sub optimal performance engineering practices manifest themselves, as well as identified the lack of goal commonality between developers and performance engineers as one of the key reasons behind these sub optimal practices. In this post I want to look at the problem from a [...]
Continue reading...The time is right for Application Performance Engineering
Monday, December 20, 2010
The time is right for Application Performance Engineering. It’s a simple statement, but a powerful one that will change the existing application lifecycle management paradigm. At Shunra, we have been working hard, together with our partners, at developing and defining a new performance management model that completes the existing APM frameworks. This post is a [...]
Continue reading...Tuning applications and web sites for mobile users
Friday, July 23, 2010
More and more of my clients recently asked me about performance engineering best practices for mobile applications. This came as no surprise as we observe the paradigm shift represented by more and more consumers performing more and more of their daily tasks via a mobile device. Here at Shunra we have been working with a [...]
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...A Data Driven Transactional Application A glossary post
Thursday, November 5, 2009
A data driven transactional application supports the execution of business processes. Each business process (such as book sale, update employee status, submit work hours, etc.) is comprised of multiple business transactions. A business transaction is described as the interaction and managed outcome of a well-defined step within a business process. A transaction is usually triggered [...]
Continue reading...Building Applications for a Remote Datacenter Part 1. The network impact
Tuesday, October 13, 2009
This series of posts is about the day after a data center move. Now that the data center is remote, how does this paradigm shift impact the way we should develop, test, deploy, monitor and troubleshoot applications. I will try to cover as many topics as possible, but the main focus is still going to be around the role application performance management plays in this new paradigm.
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...
Friday, August 26, 2011