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Back to Basics: The Theory of (Performance) Relativity

#webperf #ado Choice of load balancing algorithms is critical to ensuring consistent and acceptable performance   One of the primary reasons folks use a Load balancer is scalability with a secondary driver of maintaining performance. We... Read more
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Load Balancing Fu: Beware the Algorithm and Sticky Sessions

The choice of load balancing algorithms can directly impact – for good or ill – the performance, behavior and capacity of applications. Beware making incompatible choices in architecture and algorithms.   One of the most persistent... Read more
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Choosing a Load Balancing Algorithm Requires DevOps Fu

Knowing the algorithms is only half the battle, you’ve got to understand a whole lot more to design a scalable architecture.    Citrix’s Craig Ellrod has a series of blog posts on the basic (industry standard) load balancing... Read more
1 Review

The Impossibility of CAP and Cloud

It comes down to this: the on-demand provisioning and elastic scalability systems that make up “cloud” are addressing NP-Complete problems for which there is no known exact solutions.  At the heart of what cloud computing provides – in... Read more
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Cloud is not Rocket Science but it is Computer Science

That doesn’t mean it isn’t hard - it means it’s a different kind of hard.   For many folks in IT it is likely you might find in their home a wall on which you can find hanging a diploma. It might be a BA, it might be a BS, and you... Read more
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Optimize Prime: The Self-Optimizing Application Delivery Network

Infrastructure 2.0 enabled application delivery platforms have more than a few things in common with the Transformers. Like Autobots, there’s more to it than meets the eye. If you’re familiar with the mythology of the Transformers – and perhaps... Read more
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It’s 2am: Do You Know What Algorithm Your Load Balancer is Using?

The wrong load balancing algorithm can be detrimental to the performance and scalability of your web applications. When you’re mixing and matching virtual or physical servers you need to take care with how you configure your Load balancer – and... Read more
1 Review

Impact of Load Balancing on SOAPy and RESTful Applications

A load balancing algorithm can make or break your application’s performance and availability It is a (wrong) belief that “users” of cloud computing and before that “users” of corporate data center infrastructure didn’t need to understand any of... Read more
1 Review

Not All Virtual Servers are Created Equal

How to optimize compute resources in a heterogeneous environment using weight/ratio-based load balancing Unless you’re starting from scratch your data center is full of physical servers of various and sundry sizes, colors, shapes, and compute... Read more
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Greedy (IT) Algorithms

Greedy algorithms can result in the right solution in the end, but rarely do Don and I were having a discussion with our oldest son the other night about writing a chess program. There are myriad options for implementing the learning aspects of a... Read more
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Not all application requests are created equal

ArsTechnica has an interesting little article on what Windows Azure is and is not. During the course of discussion with Steven Martin, Microsoft's senior director of Developer Platform Product Management, a fascinating – or disturbing in my... Read more
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