[ruby-core:113683] [Ruby master Misc#19693] Data initialization is significantly slower than Struct

Issue #19693 has been updated by nobu (Nobuyoshi Nakada).





This is a kind of cheat, but...

https://github.com/nobu/ruby/tree/data-optimize



---



compare-ruby: ruby 3.3.0dev (2023-05-26T17:07:47Z master c6e4337a99) [x86_6=
4-darwin22]

built-ruby: ruby 3.3.0dev (2023-05-27T10:07:26Z data-optimize 81baba152b) [=
x86_64-darwin22]

last_commit=3D[Misc #19693] Optimize Data.new

warming up....



##### Iteration per second (i/s)



|             |compare-ruby|built-ruby|

|:------------|-----------:|---------:|

|Struct-list  |      7.194M|    7.169M|

|             |       1.00x|         -|

|Struct-kwd   |    933.437k|  925.462k|

|             |       1.01x|         -|

|Data-list    |    921.171k|    9.232M|

|             |           -|    10.02x|

|Data-kwd     |    944.031k|  946.684k|

|             |           -|     1.00x|





----------------------------------------

Misc #19693: Data initialization is significantly slower than Struct

https://bugs.ruby-lang.org/issues/19693#change-103327



* Author: janosch-x (Janosch M=FCller)

* Status: Closed

* Priority: Normal

----------------------------------------

Maybe there is potential to make it as fast as Struct?



```ruby

require 'benchmark/ips'



S =3D Struct.new(:a, :b, :c, :d, :e, :f, :g, :h, :i, :j)

D =3D Data.define(:a, :b, :c, :d, :e, :f, :g, :h, :i, :j)



Benchmark.ips do |x|

  x.report('Struct') { S.new(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) }

  x.report('Data')   { D.new(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) }

  x.compare!

end; 1



# =3D> [...]

# =3D>             Struct:  6916530.4 i/s

# =3D>               Data:  1507259.5 i/s - 4.59x  slower

```







--=20

https://bugs.ruby-lang.org/

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