# Invalidations findings (from a GMT case)

**URL:** <https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420>\
**Category:** General Usage\
**Tags:** performance\
**Created:** [January 2, 2023, 2:55pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420 "2023-01-02T14:55:54Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 2:55pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/1 "2023-01-02T14:55:54Z")

</div>

Continuing from [Julia v1.9.0-beta2 is fast](https://discourse.julialang.org/t/julia-v1-9-0-beta2-is-fast/92290/21) and using Tim’s [recipe](https://discourse.julialang.org/t/julia-v1-9-0-beta2-is-fast/92290/17)

```julia-auto
using SnoopCompileCore
invs = @snoopr using GMT
tinf = @snoopi_deep plot(rand(5,2));
using SnoopCompile
trees = invalidation_trees(invs);
taletrees = precompile_blockers(trees, tinf)

```

I found that the major culprit was this line I had in `startup.jl` to print `UInt's` in a human readable way (I hate when they printed in hexadecimal).

```julia-auto
Base.show(io::IO, x::T) where {T<:Union{UInt, UInt64, UInt32, UInt16, UInt8}} = Base.print(io, x)

```

Removing it made already a big difference (though I’m again screwed in search of an alternative).

```julia-auto
julia> @time using GMT
  1.808663 seconds (3.46 M allocations: 205.896 MiB, 4.76% gc time, 0.22% compilation time)

julia> @time @eval plot(rand(5,2))
  2.616777 seconds (7.55 M allocations: 470.434 MiB, 6.38% gc time, 162.89% compilation time: 45% of which was recompilation)

(it used to take ~4.5 sec)

  | | |_| | | | (_| | | Version 1.10.0-DEV.207 (2022-12-28)
 _/ |\ __'_|_|_|\__'_| | Commit 9448c89652 (5 days old master)
|__/ |

```

```julia-auto
julia> include("c:/v/test_gmt1.jl")
1-element Vector{SnoopCompile.StaleTree}:
 inserting eltype(::Type{JuliaInterpreter.ExprSplitter}) @ JuliaInterpreter C:\Users\joaqu\.julia\packages\JuliaInterpreter\8vzXf\src\construct.jl:430 invalidated:
   mt_backedges: 1: MethodInstance for SubArray(::IndexCartesian, ::P, ::I, ::Tuple{Vararg{Any, N}}) where {P<:GMTdataset, I<:Tuple, N} at depth 1 with 5 children blocked InferenceTimingNode: 0.004436/0.073617 on GMT.make_color_column(::Dict{Symbol, Any}, ::String, ::String, ::Int64, ::Int64, ::Int64, ::Bool, ::Bool, ::Bool, ::Vector{String}, ::Matrix{Float64}, nothing::Nothing) with 16 direct children
                 2: MethodInstance for SubArray(::IndexLinear, ::P, ::I, ::Tuple{Vararg{Any, N}}) where {P<:(Array), I<:Tuple, N} at depth 1 with 17 children blocked 1.4152226000000003 inclusive time for 2 nodes

```

There is only one invalidation coming from `JuliaInterpreter`, which is not a GMT’s dependency (nor indirectly). It turns out it is a `Revise` dependency and I have `Revise` in my `startup.jl`.

## Without Revise

julia\> @time @eval plot(rand(5,2))  
0.687842 seconds (1.08 M allocations: 71.042 MiB, 2.03% gc time, 146.57% compilation time: 33% of which was recompilation)

## Finaly the load time

This is a longer list but all references seem to come from dependecies of `PrettyTables` like `LatexStrings` and `StringManipulation`

julia\> include(“c:/v/test\_gmt1.jl”)  
SnoopCompile.StaleTree

```julia-auto
julia> trees
7-element Vector{SnoopCompile.MethodInvalidations}:
 inserting firstindex(s::LaTeXStrings.LaTeXString) @ LaTeXStrings C:\Users\joaqu\.julia\packages\LaTeXStrings\pJ7vn\src\LaTeXStrings.jl:108 invalidated:
   backedges: 1: superseding firstindex(s::AbstractString) @ Base strings\basic.jl:180 with MethodInstance for firstindex(::AbstractString) (1 children)

 inserting codeunits(s::LaTeXStrings.LaTeXString) @ LaTeXStrings C:\Users\joaqu\.julia\packages\LaTeXStrings\pJ7vn\src\LaTeXStrings.jl:124 invalidated:
   mt_backedges: 1: signature Tuple{typeof(codeunits), Any} triggered MethodInstance for Base.cwstring(::AbstractString) (3 children)
   backedges: 1: superseding codeunits(s::AbstractString) @ Base strings\basic.jl:785 with MethodInstance for codeunits(::AbstractString) (1 children)

 inserting Base.IteratorSize(::Type{R}) where R<:Union{AbstractColumns, AbstractRow} @ Tables C:\Users\joaqu\.julia\packages\Tables\T7rHm\src\Tables.jl:179 invalidated:
   backedges: 1: superseding Base.IteratorSize(::Type) @ Base generator.jl:94 with MethodInstance for Base.IteratorSize(::Type{<:AbstractString}) (5 children)
   112 mt_cache

 inserting lastindex(s::LaTeXStrings.LaTeXString) @ LaTeXStrings C:\Users\joaqu\.julia\packages\LaTeXStrings\pJ7vn\src\LaTeXStrings.jl:109 invalidated:
   backedges: 1: superseding lastindex(s::AbstractString) @ Base strings\basic.jl:181 with MethodInstance for lastindex(::AbstractString) (5 children)

 inserting eltype(::Type{Tables.NamedTupleIterator{Tables.Schema{names, types}, T}}) where {names, types, T} @ Tables C:\Users\joaqu\.julia\packages\Tables\T7rHm\src\namedtuples.jl:36 invalidated:
   backedges: 1: superseding eltype(::Type) @ Base abstractarray.jl:233 with MethodInstance for eltype(::Type) (6 children)
   34 mt_cache

 inserting sizeof(s::LaTeXStrings.LaTeXString) @ LaTeXStrings C:\Users\joaqu\.julia\packages\LaTeXStrings\pJ7vn\src\LaTeXStrings.jl:125 invalidated:
   backedges: 1: superseding sizeof(s::AbstractString) @ Base strings\basic.jl:179 with MethodInstance for sizeof(::AbstractString) (15 children)

 inserting convert(::Type{String}, d::StringManipulation.Decoration) @ StringManipulation C:\Users\joaqu\.julia\packages\StringManipulation\wxRU4\src\decorations.jl:193 invalidated:
   mt_backedges: 1: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Base.UUID}, ::Any, ::Any) (0 children)
                  2: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Union{Bool, String}}, ::Any, ::Any) (0 children)
                  3: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Union{Nothing, String}}, ::Any, ::Any) (0 children)
                  4: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Nothing}, ::Nothing, ::Any) (0 children)
                  5: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Vector{String}, ::Any, ::Int64) (0 children)
                  6: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for push!(::Vector{String}, ::Any) (0 children)
                  7: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Union{Base.SHA1, String}}, ::Any, ::Any) (0 children)
                  8: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Function}, ::Any, ::Any) (0 children)
                  9: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Union{String, Vector{String}}}, ::Any, ::Any) (0 children)
                 10: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, String}, ::Any, ::Any) (0 children)
                 11: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{String, String, Base.UUID}})(::Int64) (0 children)
                 12: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{String, Union{Nothing, VersionNumber}}})(::Int64) (0 children)
                 13: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Any}, ::Any, ::Any) (0 children)
                 14: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Vector{Pkg.Types.Stage1}}, ::Vector{Pkg.Types.Stage1}, ::Any) (0 children)
                 15: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{Base.UUID, String, String, VersionNumber}})(::Int64) (0 children)
                 16: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Fail(::Symbol, ::Any, ::Any, ::Any, ::Nothing, ::LineNumberNode, ::Bool) (0 children)
                 17: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Fail(::Symbol, ::Any, ::Any, ::Any, ::Any, ::LineNumberNode, ::Bool) (0 children)
                 18: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Fail(::Symbol, ::Any, ::Any, ::Nothing, ::Nothing, ::LineNumberNode, ::Bool) (0 children)
                 19: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Base.UUID}, ::Base.UUID, ::Any) (0 children)
                 20: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Fail(::Symbol, ::Any, ::Any, ::Bool, ::Nothing, ::LineNumberNode, ::Bool) (0 children)
                 21: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Pkg.Types.Compat}, ::Any, ::Any) (0 children)
                 22: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, Vector{String}}, ::Vector{String}, ::Any) (0 children)
                 23: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::IdDict{Any, String}, ::Any, ::Any) (1 children)
                 24: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for setindex!(::Dict{String, String}, ::Any, ::String) (1 children)
                 25: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for convert(::Type{Pair{String, String}}, ::Pair{String}) (1 children)
                 26: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Logging.var"#handle_message#3"(::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, ::typeof(Base.CoreLogging.handle_message), ::Logging.ConsoleLogger, ::Base.CoreLogging.LogLevel, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any) (1 children)
                 27: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Logging.var"#handle_message#3"(::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}}, ::typeof(Base.CoreLogging.handle_message), ::Logging.ConsoleLogger, ::Base.CoreLogging.LogLevel, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any) (1 children)
                 28: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Error(::Symbol, ::Any, ::Any, ::Vector{Any}, ::LineNumberNode) (1 children)
                 29: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for REPL.LineEdit.PrefixSearchState(::Any, ::Any, ::Any, ::Any) (1 children)
                 30: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for REPL.LineEditREPL(::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any) (1 children)
                 31: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Error(::Symbol, ::Any, ::Bool, ::Nothing, ::LineNumberNode) (1 children)
                 32: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Error(::Symbol, ::Any, ::Any, ::Nothing, ::LineNumberNode) (2 children)
                 33: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Test.Error(::Symbol, ::Any, ::Any, ::Any, ::LineNumberNode) (2 children)
                 34: signature Tuple{typeof(convert), Union{Type{Base.UUID}, Type{String}}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{String, String, Base.UUID}})(::Int64) (3 children)
                 35: signature Tuple{typeof(convert), Union{Type{Base.UUID}, Type{VersionNumber}, Type{String}}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{Base.UUID, String, String, VersionNumber}})(::Int64) (3 children)
                 36: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Base.CoreLogging.var"#handle_message#2"(::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}}, ::typeof(Base.CoreLogging.handle_message), ::Base.CoreLogging.SimpleLogger, ::Base.CoreLogging.LogLevel, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any) (4 children)
                 37: signature Tuple{typeof(convert), Union{Type{String}, Type{Union{Nothing, VersionNumber}}}, Any} triggered MethodInstance for (::Base.var"#cvt1#1"{Tuple{String, Union{Nothing, VersionNumber}}})(::Int64) (4 children)
                 38: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for REPL.REPLHistoryProvider(::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any, ::Any) (17 children)
                 39: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for convert(::Type{Union{Nothing, String}}, ::Any) (48 children)
                 40: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Pkg.Types.Compat(::Pkg.Versions.VersionSpec, ::Any) (121 children)
                 41: signature Tuple{typeof(convert), Type{String}, Any} triggered MethodInstance for Pkg.Registry.verify_compressed_registry_toml(::String) (156 children)

```

---

<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [January 2, 2023, 3:07pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/2 "2023-01-02T15:07:53Z")

</div>

> [@joa-quim](#):
>
> ## Finaly the load time
> 
> This is a longer list but all references seem to come from dependecies of `PrettyTables` like `LatexStrings` and `StringManipulation`
> 
> julia\> include(“c:/v/test\_gmt1.jl”)  
> SnoopCompile.StaleTree

These should be fixed by [Fix inference for STDLIBS\_BY\_VERSION by timholy · Pull Request #3275 · JuliaLang/Pkg.jl · GitHub](https://github.com/JuliaLang/Pkg.jl/pull/3275). By an accident that was not included in 1.9.0-beta2 but should be in beta3 (or master if you want to try that one out).

---

<div class="post-metadata">

**Author:** ![jishnub](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jishnub/32/33620_2.png) [@jishnub](https://discourse.julialang.org/u/jishnub)\
**Post date:** [January 2, 2023, 3:18pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/3 "2023-01-02T15:18:18Z")

</div>

Why does this PR improve inference, though? It seems the type is defined as a constant, that’s about it

---

<div class="post-metadata">

**Author:** ![stillyslalom](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stillyslalom/32/45687_2.png) [@stillyslalom](https://discourse.julialang.org/u/stillyslalom)\
**Post date:** [January 2, 2023, 3:28pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/4 "2023-01-02T15:28:51Z")

</div>

[Line 9](https://github.com/JuliaLang/Pkg.jl/pull/3275/files#diff-8387f5e55b4815b8e65004b6d2e4039e1f5cb8525cc9c513c69bee31fec44890L9) has `Dict{UUID}`, which only specifies the type of the key. The new `const Dict{...}` in the PR specifies both key and value types.

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 3:33pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/5 "2023-01-02T15:33:50Z")

</div>

> [@kristoffer.carlsson](#):
>
> By an accident that was not included in 1.9.0-beta2 but should be in beta3 (or master if you want to try that one out).

I’m already using master (5 days old but that commit was merged 3 weeks ago)

```julia
  | | |_| | | | (_| | | Version 1.10.0-DEV.207 (2022-12-28)
 _/ |\ __'_|_|_|\__'_| | Commit 9448c89652 (5 days old master)

```

---

<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [January 2, 2023, 4:16pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/6 "2023-01-02T16:16:26Z")

</div>

I mixed it up with some other things I was looking at. [improve inference in Pkg by KristofferC · Pull Request #3293 · JuliaLang/Pkg.jl · GitHub](https://github.com/JuliaLang/Pkg.jl/pull/3293) should hopefully deal with those.

---

<div class="post-metadata">

**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [January 2, 2023, 5:28pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/7 "2023-01-02T17:28:22Z")

</div>

Not sure why I get much faster results:

```julia
julia> using Plots

julia> @time @eval plot(rand(5,2))
  0.078085 seconds (42.42 k allocations: 2.209 MiB, 90.84% compilation time)

```

Different backend? Different OS?  
I am using Ubuntu on a Intel® Core™ i7-10510U CPU.

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 5:45pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/8 "2023-01-02T17:45:40Z")

</div>

Different `plots`. The one I posted here is from GMT.jl

```julia
using GMT

julia> @time @eval plot(rand(5,2))
  0.702287 seconds (1.06 M allocations: 69.453 MiB, 4.55% gc time, 148.71% compilation time: 32% of which was recompilation)

julia> @time @eval plot(rand(5,2))
  0.003255 seconds (494 allocations: 31.133 KiB)

```

I take it to mean that there still some dependent functions that didn’t get pre-compiled on first run.

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 6:15pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/9 "2023-01-02T18:15:35Z")

</div>

> [@ufechner7](#):
>
> Not sure why I get much faster results:
> 
> ```julia
> julia> using Plots
> 
> julia> @time @eval plot(rand(5,2))
> 0.078085 seconds (42.42 k allocations: 2.209 MiB, 90.84% compilation time)
> 
> ```
> 
> Different backend? Different OS?  
> I am using Ubuntu on a Intel® Core™ i7-10510U CPU.

Hmmm, much slower here. From a fresh session:

```julia
  | | |_| | | | (_| | | Version 1.10.0-DEV.207 (2022-12-28)
 _/ |\ __'_|_|_|\__'_| | Commit 9448c89652 (5 days old master)
|__/ |

julia> @time using Plots
  3.561736 seconds (6.14 M allocations: 413.016 MiB, 5.77% gc time, 1.77% compilation time: 48% of which was recompilation)

julia> @time @eval plot(rand(5,2))
  6.858056 seconds (18.11 M allocations: 1.153 GiB, 7.42% gc time, 172.21% compilation time)

```

.

```julia
julia> versioninfo()
Julia Version 1.10.0-DEV.207
Commit 9448c89652 (2022-12-28 00:22 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: 12 × Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, skylake)
  Threads: 6 on 12 virtual cores
Environment:
  JULIA_NUM_THREADS = 6

```

---

<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [January 2, 2023, 9:58pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/10 "2023-01-02T21:58:45Z")

</div>

> [@joa-quim](#):
>
> Hmmm, much slower here. From a fresh session:

Are you sure you don’t have stuff in your startup file? The 18M allocations is pretty different to me:

```julia
julia> @time (p = plot(rand(2,2)); display(p))
  0.516695 seconds (75.79 k allocations: 4.427 MiB, 35.58% compilation time: 8% of which was recompilation)

```

---

<div class="post-metadata">

**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [January 2, 2023, 10:07pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/11 "2023-01-02T22:07:13Z")

</div>

Yes, including the display time in the test makes sense and I get very similar results:

```julia
ufechner@tuxedi:~$ julia
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.9.0-beta2 (2022-12-29)
 _/ |\ __'_|_|_|\__'_| | Official https://julialang.org/ release
|__/ |

julia> using Plots

julia> @time @eval (p = plot(rand(2,2)); display(p))
  0.527025 seconds (90.88 k allocations: 5.346 MiB, 37.99% compilation time: 7% of which was recompilation)

```

```julia
julia> versioninfo()
Julia Version 1.9.0-beta2
Commit 7daffeecb8c (2022-12-29 07:45 UTC)
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 8 × Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, skylake)
  Threads: 1 on 8 virtual cores

```

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 10:34pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/12 "2023-01-02T22:34:12Z")

</div>

> [@kristoffer.carlsson](#):
>
> `@time (p = plot(rand(2,2)); display(p))`

If you make that way, it’s even worse. (I had `Dates` and `Printf` in startup.jl but now it’s clean)

```julia
  | | |_| | | | (_| | | Version 1.10.0-DEV.207 (2022-12-28)
 _/ |\ __'_|_|_|\__'_| | Commit 9448c89652 (5 days old master)
|__/ |

julia> @time using Plots
  3.800417 seconds (6.14 M allocations: 413.174 MiB, 5.28% gc time, 1.81% compilation time: 48% of which was recompilation)

julia> @time (p = plot(rand(2,2)); display(p))
 11.729658 seconds (18.03 M allocations: 1.122 GiB, 4.00% gc time, 118.98% compilation time: <1% of which was recompilation)

```

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 11:05pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/13 "2023-01-02T23:05:36Z")

</div>

Is it only me that have these timings?

---

<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [January 2, 2023, 11:37pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/14 "2023-01-02T23:37:20Z")

</div>

> [@joa-quim](#):
>
> Is it only me that have these timings?

Yes, on my M1 I have

```julia
 % ./julia --startup-file=no --project=/tmp -q
 julia> @time @eval using Plots; x = 0:0.1:10; y = sin.(x); @time @eval display(Plots.plot(x, y));
   1.879666 seconds (5.61 M allocations: 351.548 MiB, 7.30% gc time, 0.34% compilation time)
   0.523323 seconds (232.44 k allocations: 14.951 MiB, 43.05% compilation time: 4% of which was recompilation)

```

> [@joa-quim](#):
>
> (I had `Dates` and `Printf` in startup.jl but now it’s clean)

Do you know that you can use the flag `--startup-file=no` without touching your init file?

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 2, 2023, 11:43pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/15 "2023-01-02T23:43:32Z")

</div>

> [@giordano](#):
>
> > [@joa-quim](#):
> >
> > Is it only me that have these timings?
> 
> Yes

And would mind imagining where my particular Julia version is coming from?

```julia
C:\programs\julia-1.10\bin\julia --startup-file=no
               _
   _ _ _(_)_ | Documentation: https://docs.julialang.org
  (_) | (_) (_) |
   _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` | |
  | | |_| | | | (_| | | Version 1.10.0-DEV.207 (2022-12-28)
 _/ |\ __'_|_|_|\__'_| | Commit 9448c89652 (5 days old master)
|__/ |

julia> using Plots

julia> @time (p = plot(rand(2,2)); display(p))
 11.809763 seconds (18.03 M allocations: 1.122 GiB, 4.08% gc time, 119.10% compilation time: <1% of which was recompilation)

```

But this post is not about `Plots plot()`. It’s about `GMT plot()` and its invalidation’s finds that touch several other packages.

---

<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [January 2, 2023, 11:56pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/16 "2023-01-02T23:56:04Z")

</div>

> [@joa-quim](#):
>
> And would mind imagining where my particular Julia version is coming from?

I don’t know, but the timings you reported have suspiciously very high memory allocations, no one here has shown anything close 18 M allocations

---

<div class="post-metadata">

**Author:** ![tim.holy](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tim.holy/32/52_2.png) [@tim.holy](https://discourse.julialang.org/u/tim.holy)\
**Post date:** [January 2, 2023, 11:57pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/17 "2023-01-02T23:57:03Z")

</div>

> There is only one invalidation coming from `JuliaInterpreter`, which is not a GMT’s dependency (nor indirectly). It turns out it is a `Revise` dependency and I have `Revise` in my `startup.jl`.

That suggests you don’t have to worry about any more invalidations for that particular workload. 0.7s is not bad, but do check that you are using SnoopPrecompile and that all elements of `display(GMT.plot(rand(5,2)))` are inside the `@precompile_all_calls`.

---

<div class="post-metadata">

**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [January 3, 2023, 12:02am UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/18 "2023-01-03T00:02:10Z")

</div>

Yes, 0.7 sec is more than fine but that is without `Revise` and I don’t want to give up of it 🙂

I’m not using `SnoopPrecompile` here but it doesn’t change if use it or not in this regard.

---

<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [January 3, 2023, 10:31am UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/19 "2023-01-03T10:31:21Z")

</div>

> [@joa-quim](#):
>
> And would mind imagining where my particular Julia version is coming from?

What happens if you download the official 1.9.0-beta2 and time `Plots.plot` on it?

> [@joa-quim](#):
>
> But this post is not about `Plots plot()`. It’s about `GMT plot()` and its invalidation’s finds that touch several other packages.

If you have very strange results for `Plots.plot` it isn’t unthinkable that your numbers are strange form `GMT.plot` as well so it would be good to understand what is going on with that.

---

<div class="post-metadata">

**Author:** ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)\
**Post date:** [January 3, 2023, 12:21pm UTC](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420/20 "2023-01-03T12:21:21Z")

</div>

I can’t properly test on Linux right now as I’ve only got access to WSL2 so `display` fails, but on my Windows machine I see:

```julia
julia> @time @eval using Plots; x = 0:0.1:10; y = sin.(x); @time @eval display(Plots.plot(x, y));
  2.749473 seconds (5.74 M allocations: 357.409 MiB, 5.30% gc time, 0.50% compilation time)
  6.249960 seconds (9.27 M allocations: 576.751 MiB, 2.34% gc time, 88.69% compilation time: <1% of which was recompilation)

julia> versioninfo()
Julia Version 1.9.0-beta2
Commit 7daffeecb8 (2022-12-29 07:45 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: 8 × 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, tigerlake)
  Threads: 8 on 8 virtual cores

```

Which is about half the allocations reported above, but order-of-magnitude correct - so maybe it’s a Windows specific issue?

[Next page](https://discourse.julialang.org/t/invalidations-findings-from-a-gmt-case/92420.md?page=2)