The Performance of Everyday Things
I've spent much time fixing code optimizations that added no business value (with often matching performance value). Please do not try to make your code faster unless you need to. The way I handle performance issues on my projects: Define acceptable performance. Write my code as simply as possible. Measure performance: against definition, if performance > acceptable - goto DONE. /*Performance not acceptable*/ Profile; Fix as simply as possible; goto Measure. DONE To be explicit: I'm comfortable using slower patterns if they are clear and simple. As soon as I've hit my acceptable performance bar - I'm done. With that out of the way, let me discuss a performance riddle I hit this week. I was wandering through some powershell code that processed slews of objects (over 200K of 'em): $interestingObjects = @() foreach ($object in $inputObjects) { if ($object.IsInteresting) { $interestingObjects += $objects