Tag Archive | "WAN Emulation"
Building Applications for a Remote Datacenter Part 1. The network impact
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...Is Microsoft Quietly Providing an Alternative to WAN Acceleration
Friday, September 4, 2009
As part of our service offerings at Shunra’s professional services, we help our clients analyze the performance ROI of WAN acceleration. We also wrote a best practices paper about it here http://www.shunra.com/uploads/pdf/WAN-acceleration-whitepaper-031909.pdf. Which is why I was very interested in learning about 2 new developments from Microsoft. These developments provide improved performance for branch office [...]
Continue reading...Migrating to Business Ethernet Service
Monday, August 24, 2009
Impact on Enterprise Application Performance In the current economic environment where growth is tough to come by, Business Ethernet Service (aka Carrier Ethernet, Metro Ethernet) is bucking the trend. A recent analyst report confirms the uptick in growth of these services for Business Applications: Source: Vertical Systems Group, March 2009 Service providers are reaching critical [...]
Continue reading...Analyzing and remediating latency sensitive applications part 1
Thursday, August 20, 2009
Examples of latency sensitive applications In the previous post http://www.shunra.com/shunrablog/index.php/2009/08/14/data-center-relocation-questions-and-answers-part-1/ I shared some of the questions that clients typically ask me during the performance analysis service in a data center relocation project. One of the most popular question, especially at the beginning of the project is “which applications are the most sensitive to network latency?”. [...]
Continue reading...Data Center Relocation Questions and Answers Part 1
Friday, August 14, 2009
In my line of work, I get to assist many clients with analyzing the impact of an upcoming data center relocation on the performance of business applications. Many clients don’t know exactly what application performance to expect post the data center move. The main concern is that once all the applications start to operate across [...]
Continue reading...A fix to the awesome WPF Snoop utility.
Tuesday, July 21, 2009
Anyone developing on the WPF platform surely knows the Snoop utility by Pete Blois. It is absolutely awesome and I cannot imagine developing WPF applications without it. However, there is a problem with it. One cannot snoop WPF framework elements nested too deep. By too deep I mean somewhere around 60 layers. Trying to snoop [...]
Continue reading...Cisco place a bet on Video over IP
Tuesday, June 16, 2009
By 2013, annual global IP traffic will reach two-thirds of a zettabyte, (a trillion GB), according to a new forecast of IP traffic (http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-481360_ns827_Networking_Solutions_White_Paper.html). What is driving this growth is video? Cisco forecasts that 90 percent of consumer IP traffic (which makes up the majority of total IP traffic) will be video in 2013. Cisco also predicts [...]
Continue reading...Monitoring Transactions by emulated location at runtime using VED and Vugen script – Part 1
Wednesday, June 10, 2009
The Analysis application of LoadRunner 9.5 allows grouping transactions by emulated location. This enables users to see how each transaction performs in different locations. This is a very valuable feature but it is only available at analysis time, after the test stopped. In this post I’ll show how simple changes to the vugen scripts allow [...]
Continue reading...What’s new in LoadRunner 9.5 – the rest of the story
Wednesday, March 25, 2009
One of my favorite partners to work with is LoadTester. Not only are they competent and efficient, but they are nice and will tell you what they really think. Their latest update on HP’s latest release of LoadRunner 9.5 goes into a lot more detail than any readme file will, with perspective and colorful commentary [...]
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Tuesday, October 13, 2009
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