Re: [racket-users] slow mutable-array-data

Here a corrected code example with (collect-garbage) to make time measurement more deterministic and the results (still mutable-array-data is 50% slower than element-wise access): #lang racket (require math/array) (define arr (mutable-array #[#[1. 2. 3.] #[4. 5. 6.]])) (define (array->vector1

[racket-users] slow mutable-array-data

Converting a mutable-array into a vector in Racket (not Typed Racket) seems to be faster when done element-wise instead of using mutable-array-data. Why is this? I always thought crossing the untyped/typed boundary as little as possible makes things run faster. This little test program #lang