Julia 1.11 beta high latency

[kristoffer.carlsson]

lazily initialize the time zone cache by KristofferC · Pull Request #457 · JuliaTime/TimeZones.jl · GitHub seems to restore the load time of KiteUtils to 1.10 levels (a bit better actually). We’ll see if the maintainers like it.

[mbauman]

@lassepe

Training of some of my Flux models is also about 20% slower (irrespective of load times or compilation times). I guess this would also be related to the Memory change (?)

@mkitti can you share some info on which kind of changes package developers should consider to get back to 1.10 speed?

Before implementing changes, please do see if you can identify where the regression is coming from via profiling and post a separate topic or issue with a minimal example.

[ufechner7]

I just benchmarked my main function (which is non-allocating, using only StaticArrays), and there is no significant difference regarding the execution time:

# Julia 1.10 on Laptop on battery: 1047ns
# Julia 1.11 on Laptop on battery: 1035ns

I updated the title accordingly.

[PeterSimon]

As another data point I will note that a typical case for PSSFSS.jl runs about 15% faster under Julia 1.11.0-beta1 than under 1.10.2. Of course, this pleases me greatly! Well, done, Julia developers!