Tag Archive | "Packet Loss"
Testing 3G Hand Held Inventory Devices using Shunra Virtual Enterprise (VE) Suite
I was approached a couple of days ago by one of our large customers, a major food manufacturer, to help them design a testing cycle for an hand-held device, to scan barcodes on their product’s pallets, as they are being unloaded from supply trucks into their regional depots. The devices utilize a LAN based wireless [...]
Continue reading...WAN symptoms within Cloud type Data Centers – Why would we test something like this?
Monday, January 25, 2010
WAN symptoms in question are latency, packet loss, disconnects, bit errors, etc. usually exist on Wide Area Networks and as a result cause applications performance degradation. But our WAN’s essentially are LAN’s connected with each other and those connections impose geographical distance between those LANs, thus creating “WAN behavior”. Inside individual LANs those issues happen [...]
Continue reading...Is IPTV coming to your home sooner than expected?
Tuesday, December 22, 2009
In today’s Business section of the New York Times, there is an article by Brian Stelter (December 22, 2009) about a proposal by Apple computer to offer TV subscription packages via the Internet. The article points out that ABC and CBS are actively considering joining the Apple venture. Disney, who owns ABC, was the first [...]
Continue reading...Mitigating the Risk of Failed Application Integration as a Result of M&A
Thursday, October 22, 2009
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, [...]
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...Cloud computing adoption rises so what should you do about it?
Friday, September 11, 2009
I have been meaning to address the impact that cloud computing has on performance engineering but haven’t had the time to rigorously tackle this issue. After all, there are serious implications both for vendors that deliver applications and services from the Cloud as well as enterprises that are rapidly migrating more and more services to [...]
Continue reading...Liam McCamley’s 5 mistakes in Data Center Relocations and Server Consolidations – Webinar Recording now available
Wednesday, July 22, 2009
Shunra can provide a proven strategy and process for predicting and resolving application performance issues during a move. Hear from Shunra Expert, Liam McCamley, as he presents 5 most common mistakes and offers a 7 step process that can help you avoid those failures and make your move a success. Join us as discuss best [...]
Continue reading...Packet Loss – a glossary post
Thursday, June 25, 2009
Packet Loss: The term “packet loss” is used to describe the probability of dropping a packet at any point across the network link. The key reasons for packet loss across a network are: When networks get congested over a long period of time the router buffers get saturated which at some point leads to a situation [...]
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 [...]
Continue reading...Adding Network Analysis to a LoadRunner 9.5 Scenario
Tuesday, March 10, 2009
In a previous post I explained how to add network conditions to a LoadRunner scenario, answering the question, “How will this application perform in a remote site?” The results from running a LoadRunner test with network conditions will highlight transactions that perform well under network conditions as well as pinpoint transactions that will degrade in [...]
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- Testing 3G Hand Held Inventory Devices using Shunra Virtual Enterprise (VE) Suite
Monday, February 8, 2010
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