Tag Archive | "Network Latency"
Getting Accurate Results from Scalability Testing
None of us want our sites to crash like the Chase site outage in mid September. I’m not privy to the details of that site crash, but I can tell you that many sites degrade under peak user traffic unexpectedly and eventually crash. Why? It’s often incorrectly performed scalability tests. Over the years, I’ve met [...]
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...Network Latency
Thursday, June 25, 2009
In the next couple of posts I will add some glossary definitions that I see repeat in reader’s questions. I will also use these as I describe some of the performance analysis insights we experience in the field. Network Latency/Network Delay One-way network latency is defined as the amount of time it takes for a [...]
Continue reading...Accurate Load Testing? – Yes We Can! – With VE Desktop for HP Performance Center 9.5
Wednesday, February 25, 2009
Anyone who performed a load test (with HP LoadRunner for example) has experienced this uncomfortable feeling when asked “Can you tell me how this application will perform in production? Can you predict application performance for our remote users?” The reason these questions are so hard to answer is centered around the fact that even though [...]
Continue reading...Performance Best Practices from Citrix
Thursday, January 29, 2009
I get to work with many clients that are deploying applications over Citrix. In general Citrix is a good way to overcome network latency related performance problems and, although I am a big fan of coding applications right the first time, if the hand you were dealt is to manage an application that can’t perform [...]
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Thursday, October 21, 2010
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