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Tag Archive | "Performance"

Tuning applications and web sites for mobile users

Friday, July 23, 2010

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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 [...]

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The Feds May Soon Mandate Cloud Computing Usage

Wednesday, January 27, 2010

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In a blog dedicated to Cloud Computing, published by InfoWorld, David Lithicum, the Cloud Computing guru, inform us that according to various published reports, the OMB (Office of Management and Budget) will mandate in the fiscal year 2011 (which starts in October 2010) that federal agencies not using cloud computing or making cloud computing part [...]

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WAN Emulation vs WAN Simulation

Wednesday, December 30, 2009

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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 [...]

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Discussion & Buzz at the I/ITSEC Show Earlier this Month

Monday, December 28, 2009

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I recently had the pleasure of attending the ITSEC Modeling and Simulation show in Orlando, Florida.  This event featured the latest solutions in Gaming and Remote Learning for Dept of Defense clients deployed around the world. Based upon conversations with both the vendors and potential users of these products it quickly became evident that a [...]

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Applications, Applications, Applications

Monday, December 21, 2009

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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 [...]

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Location-aware deployment testing

Friday, November 6, 2009

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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 [...]

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Building Applications for a Remote Datacenter Part 2 Application Efficiency Metrics

Thursday, November 5, 2009

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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 [...]

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Mitigating the Risk of Failed Application Integration as a Result of M&A

Thursday, October 22, 2009

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In the first half of 2009 alone, the ten largest M&A transactions totaled a combined value of $244.6 Billion! History has shown that executing an acquisition is an opportunity to generate value; however successful integration completes the process. Many companies are integrating their applications as a direct result of a recent merger or acquisition.* Therefore, [...]

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Building Applications for a Remote Datacenter Part 1. The network impact

Tuesday, October 13, 2009

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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.

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Twitter Updates for 2009-09-19

Saturday, September 19, 2009

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Shunra is going to attend HP Virtual Universe on September 29, 30, drop a line if you plan to come too http://tinyurl.com/nor9og #

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