Tag Archive | "WAN Simulation"
LoadRunner and the Cloud – It’s here!!
HP today announced an agreement with Amazon Web Services that enables you to run HP LoadRunner v9.5 in Amazon EC2. The project is currently in beta, so it’s limited to the East US EC2 region, but does already include pre-built AMIs for your Controller (250 VUs) and any size of Load generator (32 or 64 [...]
Continue reading...WAN Emulation vs WAN Simulation
Wednesday, December 30, 2009
One of the topics we are frequently asked is to explain or clarify the difference between WAN Emulation and WAN Simulation. WAN Simulation methodology is a set of theoretical algorithms which are usually applied on a trace file. These algorithms aim to predict applications response times with different conditions and then applied to the captured [...]
Continue reading...Applications, Applications, Applications
Monday, December 21, 2009
I have been asked by a colleague “Why would someone use Application Virtualization?” You may already know that adopting the likes of Application Virtualization is not an easy task. Many applications are simply not built to be deployed in such an environment. Not to mention all the other challenges faced within the IT organization. One [...]
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...Location-aware deployment testing
Friday, November 6, 2009
As a corollary to last week’s blog about hosted load testing, I thought it would be interesting to explain a little about using a cloud-based test environment to perform pre-deployment testing for a cloud-based application. That sounds like a lot of clouds! What we are simply trying to understand is where and how to deploy [...]
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...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...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...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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Wednesday, May 19, 2010
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