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The Joy of Parameter Sniffing

Erik Darling points out that parameter sniffing is generally a good thing:

To some degree, I get it. You’re afraid of incurring some new performance problem.

You’ve had the same mediocre performance for years, and you don’t wanna make something worse.

The thing is, you could be making things a lot better most of the time.

We should specifically talk about parameter sniffing problems rather than parameter sniffing as a problem. These sorts of problems are closer to the exception than the rule.

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