Does having lots of comments in a DAX measure slow down the calculation?

[EHA_SD]

Does having lots of comments in a DAX measure slow the calculation of that measure down? For example, would having a comment line explaining each each step of the measure, or having lots of unused portions of code in the DAX measure, slow the measure down at all? A little bit? A lot? It depends?

Or does PBI just skip over all of the comments and focus on the actual DAX? Surely just reading all of the measure and deciding which parts to ignore and which parts use would have some sort of time/effort penalty?

Thank-you!

[AlexisOlson · Accepted solution]

Comments should not affect the performance to any noticeable extent since they don't change the computation at all. Theoretically, it's possible there's a minuscule difference but I don't think you'd ever be able to measure it without some absurdly long DAX code.