hypsakata commented on PR #48699:
URL: https://github.com/apache/arrow/pull/48699#issuecomment-3701585841
Benchmark code
```ruby
require "benchmark"
require "arrow"
SIZES = [100_000].freeze
# Pre-generate arrays so we only measure builder cost.
DATASETS = SIZES.each_with_object({}) do |size, datasets|
datasets[["int32", size]] = Array.new(size) {|i| (i % 2_000_000) -
1_000_000 }
datasets[["int64", size]] = Array.new(size) {|i| (i % 2**40) - 2**39 }
datasets[["uint32", size]] = Array.new(size) {|i| i % 4_000_000_000 }
datasets[["uint64", size]] = Array.new(size) {|i| i % 2**40 }
end.freeze
Benchmark.bm(36) do |x|
DATASETS.each do |(name, size), values|
x.report(" array_builder #{name} #{size}") do
Arrow::ArrayBuilder.build(values)
end
next unless name.start_with?("int", "uint")
builder_class = name.start_with?("uint") ? Arrow::UIntArrayBuilder :
Arrow::IntArrayBuilder
x.report("int_array_builder #{name} #{size}") do
builder = builder_class.new
builder.build(values)
end
end
end
```
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