Test Julia 1.9

[Pangoraw]

• Test 1.9
• Potential fix to Bug with anonymous functions in Julia 1.9 #2427
  This seems to be a weird issue with splatting or union! but I
  could not manage to reproduce outside.

[github-actions]

Try this Pull Request!

Open Julia and type:

julia> import Pkg
julia> Pkg.activate(temp=true)
julia> Pkg.add(url="https://github.com/fonsp/Pluto.jl", rev="test19")
julia> using Pluto

[Pangoraw]

All green ✔️

[fonsp]

[fonsp]

The tests take 50% longer to run on 1.9 🤔 cc @rikhuijzer

[rikhuijzer]

The tests take 50% longer to run on 1.9 thinking cc @rikhuijzer

Yes I'm very happy with Paul's work because now we can hopefully use the new package compilation better. I'm hope to find some time soon to switch Pluto.jl from PrecompileSignatures.jl to SnoopPrecompile.jl. That should probably reduce TTFX.

[greimel]

That's great! Do you plan to release this anytime soon?

[fonsp]

Yep! Rik is working on #2441 , we will release both PRs together probably. Just releasing this PR makes me worried about the 50% performance loss

[rikhuijzer]

The tests take 50% longer to run on 1.9 thinking cc @rikhuijzer

Likely due to a bug in Julia-1.9.0-beta2 which was fixed in Julia-1.9.0-beta3. In beta2, import Pluto took 59 seconds while it takes only 2 seconds in beta3.

[greimel]

Time for a release then?

[pankgeorg]

The tests take 50% longer to run on 1.9 thinking cc @rikhuijzer

Likely due to a bug in Julia-1.9.0-beta2 which was fixed in Julia-1.9.0-beta3. In beta2, import Pluto took 59 seconds while it takes only 2 seconds in beta3.

For the first time, I get ~80s on main. Is this with a clean cache on main? (I noticed julia is smart enough to cache precompilations through branches)

[rikhuijzer]

The tests take 50% longer to run on 1.9 thinking cc @rikhuijzer

Likely due to a bug in Julia-1.9.0-beta2 which was fixed in Julia-1.9.0-beta3. In beta2, import Pluto took 59 seconds while it takes only 2 seconds in beta3.

For the first time, I get ~80s on main. Is this with a clean cache on main? (I noticed julia is smart enough to cache precompilations through branches)

What do you do to get that time and which Julia version are you running?

[fonsp]

I think the number from @pankgeorg included precompilation (you get this when you run import Pluto directly after switching branches or Julia versions), which can take 80 seconds on Julia 1.9 😵‍💫

[pankgeorg]

Yes this is the precompilation time, without any cache.

[fonsp]

I have been discussing this @rikhuijzer , precompilation went from 15s to 60s (!) in Julia 1.9, and TTFX went from 30s to 20s. I'm a bit worried and I think we should open a Julia issue, Rik is mostly happy with the TTFX gains :)

60 seconds seems extremely long to me, that's 120 seconds on an older laptop. After seeing most other packages precompile in 3 seconds, people might assume that something is broken and restart Julia...

[greimel]

Right, but you already get the regression with the current release of Pluto on Julia 1.9 beta (in addition to Pluto bugs). Isn't releasing this already a strict improvement? The precompile time is orthogonal to the bug fixed here and can be fixed in a later release, can't it?

[fonsp]

Publishing a release is more complex than it sounds, but yes, a release is coming 👍