Archive for the ‘Web performance concepts’ Category

Helping a colleague this week, we uncovered some odd behavior with a site whose performance he was analyzing. Upon first glance, it was clear that this site had a performance issue – they had HTTP persistence disabled. Immediate red flag in the areas of network overhead and geographic latency.
Further digging exposed something more sinister. It [...]

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The title is a question I ask because I hear so many different views and perspectives about HTTP compression from the people I work with, colleagues and customers alike.
There appears to be no absolute statement about the compression capabilities of all current (or in-use) browsers anywhere on the Web.
My standard line is: If your customers [...]

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One of the traditional areas of frustration for Operations and Development teams in the Web world is that their performance, Web performance, is measured from the outside-in.
The resistance of this camp is strong, and they will appear without warning, even from amongst the most enlightened of companies.
How can they be recognized?
You will hear their battle-cry, [...]

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Over the space of two years I have created a series of posts that explore the analytical and statistical concepts that compose the foundation of a solid Web performance strategy.
These mark my attempt to move from a purely technical analysis of providing a solution to the problem at hand. These posts move my approach to [...]

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While this post is aimed at Web performance, the curse of the single metric affects our everyday lives in ways that we have become oblivious to.
When you listen to a business report, the stock market indices are an aggregated metric used to represent the performance of a set group of stocks.
When you read about economic indicators, [...]

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In the realm of Web performance measurement and monitoring, one of the eternal and ever-present questions remains “What is fast?”. The simple fact is that there is no single answer for this question, as it it isn’t a question with one quantitative answer that encompasses all the varied scenarios that are presented to the Web [...]

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When I re-introduced my five articles on Web Performance Concepts last night, I had forgotten than I had already written two additional articles in the series.

Web Performance, Part VI: Benchmarking Your Site
Web Performance, Part VII: Reliability and Consistency

Look for Parts VII and IX in the next few days.

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Two years ago I created a series of five blog articles, aimed at both business and technical readers, with the goal of explaining the basic statistical concepts and methods I use when analyzing Web performance data in my role as a Web performance consultant.
Most of these ideas were core to my thinking when I developed [...]

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In this series, the focus has been on the basic Web performance concepts, the ones that have dominated the performance management field for the last decade. It’s now time to step beyond these measures, and examine two equally important concepts, ones that allow a company to analyze their Web performance outside the constraints of performance [...]

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In the last article in this series, the concept of baselining your measurements was discussed. This is vital, in order for you and your organization to be able to identify the particular performance patterns associated with your site.
Now that’s under control, you’re done, right?
Not a chance. Remember that your site is not the only Web [...]

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About this blog

Stephen Pierzchala is one of a 10-year veteran of the Web performance field who also writes on topics that interest his non-linear world-view.

Contact

stephen@pierzchala.com

+1 (508) 410-3865