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- When To Use Hardware Upgrade Instead Of Software OptimizationDecember 8 2008
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One typical question which frequently pops up is whenever it is
better to use hardware upgrade or optimize software more. I already
wrote about it, for example here.
- Computing 95 Percentile In MySQLDecember 3 2008
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When doing performance analyzes you often would want to see 95
percentile, 99 percentile and similar values. The "average" is the evil
of performance optimization and often as helpful as "average patient
temperature in the hospital".
- Making Your MySQL Tables More Effecient By Using Correct FieldtypesDecember 2 2008
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One of the biggest mistakes of
today's fledgling MySQL programmers is their field type definitions,
also known as data type or column type. Many are too quick to set up
their tables, flying through the different options without giving it
much thought. The time you spend setting up your tables will save you
from many headaches later on down the road.
- Polyglot PersistenceOctober 23 2008
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In late 2006 Neal Ford wrote about Polyglot Programming
and predicted the wave of language choice we are now seeing in the
industry to use the right language for the specific job at hand.
Instead of assuming a "default" language like Java or C# and then
warring over the many different available frameworks, polyglot
programming is all about using the right language for the job...
- A Simple Clustered Task Distribution SystemOctober 6 2008
- This article will introduce the basic concepts of JGroups and then implement a task distribution system (on top of JGroups), where tasks can be placed into the cluster and are executed by worker nodes.I'll show that worker nodes can be added at run time to add more processing power, or taken down when we don't have much load. Plus, tasks assigned to workers who subsequently crash are...