Hello, In the following example, multiple dispatch is more that 10 times slower than typeof comparisons. Is it expected, or is there some issue in my code ? Ouput: Size=20000 If typeof 1006900000 1.576137 seconds (5.35 k allocations: 403.821 KiB, 0.83% compilation time) Multiple dispatch 10…

I have replaced the following line: items = rand([S1(), S2()], size) By this one: items = rand(Union{S1,S2}[S1(), S2()], size) The test with multiple dispatch is then dramatically speed up, achieving same performance as the typeof test. That is indeed very interesting and informative. Note that…

Speed of multiple dispatch

General Usage Performance

tverho November 27, 2023, 12:46pm 14

Thanks for the answer!

Regarding push! to a vector, I saw news recently that efforts to rewrite Vector based on a low-level Memory type are underway, see This month in Julia world - 2023-10

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Speed of multiple dispatch

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