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Over the years, a set of four performance metric categories have become very valuable to me.   Without the categories of 1) Workload, 2) Work, 3) Throughput, and 4) Experience, all the metrics that are available become a jumble. For example, somebody throws Average Response Time, Bytes per Second, Memory Pressure, Connection Pool Utilization at you, and you're like "Yeah? So?".  But, if we have some meaningful categories to bring order to them, well then, now we're talking.   Continue reading
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Mergers can be difficult. For example, look at the Bank of America's acquisition of Countrywide in 2008 for $2.5 billion. Now with a loss standing at $47 billion and counting because of the housing crisis and toxic sub-prime mortgages, Bank of America has withstood the Hurricane Irma of financial disaster in the banking industry. Continue reading
As many of you know and perhaps know all too well, there can be many challenges when transitioning from a traditional or hybrid SDLC to Scrum or any other Agile methodology for that matter. Today I want to focus on what appears to be the number 1 challenge…change in culture. Continue reading
Have you ever wondered, "What in the world is that Performance Tester thinking?" Let us enter the inner sanctum of the mysterious yet important world of a Performance Test Engineer's perspective. To do this, we'll peek into seven different viewpoints and a few actions within these mindsets. Continue reading