First test on Ubuntu 20.04: Code, save it in bench.jl: using CSV const input=""" time,ping 1,25.7 2,31.8 """ function read_csv(in) io = IOBuffer(in) file = CSV.File(io) close(io) file end file = read_csv(input) Test: @time @eval include("bench.jl") # Julia-1.8.4: 7.17s #…

One doubt/curiosity: if one loads a package in a fresh Julia section, and then later opens Julia again in the same environment, should now the loading time be very fast? I mean, is there any reason for recompilation to occur among two subsequent loadings of a package, if nothing has been done in the…

Invalidations happen when you load the package, not when you run the workload. You’re snooping the wrong step.

If the package needs precompilation, then yes, using MyPkg will be very slow the first time. But loading is still slow (less than in the first case) once it’s been precompiled. The second form of slowness has nothing to do with I/O (that’s fast), instead almost all of it is about checking whether th…

Thanks. After this season is over (I’ll be traveling after lunch) I will open an issue trying to explain all that I’ve tried and results. You should now be able to automatically install GMT (unless you are also bitten by the libnetcdf/libcurl fight.

I just share people this script, which IMO should be in the docs in some form. Add a copy-paste invalidations analysis script timholy:master ← ChrisRackauckas:patch-1 opened 02:10PM - 30 Dec 22 UTC…

The script errors when there are no invalidations julia> include("using_SC.jl") length(SnoopCompile.uinvalidated(invalidations)) = 0 ERROR: LoadError: BoundsError: attempt to access 0-element Vector{SnoopCompile.MethodInvalidations} at index [0]

Use Julia v1.9.0-beta2 is fast - #17 by tim.holy instead. It shouldn’t error and it will also make your TODO list much, much smaller :stuck_out_tongue: .

Getting an error when trying this. Using an environment with julia-1.9.0-beta2 and only the three relevant packages installed. julia> using SnoopCompileCore julia> invs = @snoopr using ControlSystems; julia> using SnoopCompile julia> trees = invalidation_trees(invs) ERROR: KeyError: key MethodI…

Sorry about that. I don’t yet understand the error, but in the meantime there’s a hack-workaround real fix available if you do pkg> add SnoopCompile#teh/circumvent_err use SnoopCompile 2.9.6 or higher. That should at least allow you to keep moving forward, with the understanding that there are no gu…

The error has been fixed (correctly). You can get the fix with SnoopCompile 2.9.6 or higher. In case anybody is using the teh/circumvent_err branch, I’ll try to remember to leave it lying around for a week or so, but it’s better to upgrade to the latest release.

Julia v1.9.0-beta2 is fast

General Usage Performance

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Julia 1.9.0-beta2 precompilation taking almost twice as long General Usage question , precompilation	38	3454	January 30, 2023

Julia v1.9.0-beta2 is fast

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