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UberProf performance improvements, nothing helps if you are stupid
time to read 2 min | 274 words
The following change took a while to figure out, but it was a huge performance benefit (think, 5 orders of magnitude). The code started as:
private readonly Regex startOfParametersSection = new Regex(@"(;\s*)[@:?]p0 =", RegexOptions.Compiled);
And the optimization is:
private static readonly Regex startOfParametersSection = new Regex(@"(;\s*)[@:?]p0 =", RegexOptions.Compiled);
The story behind this is interesting, this piece of code (and a few others like it) used to be in a class that has a singleton lifestyle. At some point, it was refactored into a command class that is created often, which obviously had… drastic effect on the system performance.
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