# Does Julia Create a "1.5" Language Problem?

**URL:** <https://discourse.julialang.org/t/does-julia-create-a-1-5-language-problem/107984>\
**Category:** Teaching & Outreach\
**Tags:** question, discussion\
**Created:** [December 23, 2023, 6:44pm UTC](https://discourse.julialang.org/t/does-julia-create-a-1-5-language-problem/107984 "2023-12-23T18:44:23Z")\
**Posts on this page:** 1\
**Showing post:** 115

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**Author:** ![ToucheSir](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/touchesir/32/14411_2.png) [@ToucheSir](https://discourse.julialang.org/u/ToucheSir)\
**Post date:** [December 30, 2023, 1:30am UTC](https://discourse.julialang.org/t/does-julia-create-a-1-5-language-problem/107984/115 "2023-12-30T01:30:54Z")

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And for completeness, here’s how the Julia times change if `xxx` is made `const`:

```julia
 > julia quicksort.jl
With type unstable ZeroArray wrapper:
BenchmarkTools.Trial: 58 samples with 1 evaluation.
 Range (min … max): 85.002 ms … 98.931 ms ┊ GC (min … max): 0.00% … 0.00%
 Time (median): 85.927 ms ┊ GC (median): 0.31%
 Time (mean ± σ): 87.055 ms ± 2.816 ms ┊ GC (mean ± σ): 0.33% ± 0.32%

  █▄ ▂▅                                                        
  ██▃███▅▁▁▅▁▅▃█▁▁▃▃▃▁▃▃▁▃▁▁▁▁▁▃▃▁▁▁▁▁▁▁▁▁▁▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃ ▁
  85 ms Histogram: frequency by time 97.6 ms <

 Memory estimate: 25.94 MiB, allocs estimate: 1700025.

Without ZeroArray wrapper:
BenchmarkTools.Trial: 746 samples with 1 evaluation.
 Range (min … max): 6.560 ms … 11.054 ms ┊ GC (min … max): 0.00% … 0.00%
 Time (median): 6.585 ms ┊ GC (median): 0.00%
 Time (mean ± σ): 6.695 ms ± 357.016 μs ┊ GC (mean ± σ): 0.00% ± 0.00%

  █▄▂▂▄ ▂▁                                                    
  █████████▅▇▇▅▅▁▅▆▆▆▆▅▄▄▅▅▁▄▁▁▁▁▁▄▁▁▁▁▁▁▄▁▁▁▁▁▁▁▁▁▁▁▁▄▁▁▁▁▄▄ ▇
  6.56 ms Histogram: log(frequency) by time 8.56 ms <

 Memory estimate: 0 bytes, allocs estimate: 0.

```

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