[spacedome]

Thanks for writing this up, Chris!

I took a break from Julia a year or two ago because of some of these issues, one of the big ones being I didn't want to write and maintain a set of non-allocating LAPACK wrappers for iterative solvers, but the memory churn was killing my performance. So, so glad FastLapackInterface and LinerarSolve are a thing now, and the MKL situation is much easier with this trampoline development, makes me want to start working on Julia solvers again.

It does feel difficult to write performant Julia if you don't put a lot of effort to stay "in the know" as a lot of this knowledge is very dispersed, but I guess it makes sense as the language is still changing quite rapidly.