Ruby » Ruby master

Improve performance of Range#{min,max}

range.c (range_min): use OPTIMIZED_CMP() to compare the objects instead of
`<=>' method dispatching for Fixnum/Float/String object inside Range object.

range.c (range_max): ditto.

Range#min -> 34 % up
Range#max -> 44 % up

[ruby-core:80713] [Bug #13443] [Fix GH-1585]

Before¶

       Range#min      8.428M (± 1.3%) i/s -     42.141M in   5.000952s
       Range#max      8.157M (± 1.3%) i/s -     40.852M in   5.009297s

After¶

       Range#min     11.269M (± 1.2%) i/s -     56.388M in   5.004611s
       Range#max     11.764M (± 1.3%) i/s -     58.856M in   5.003820s

Test code¶

require 'benchmark/ips'

Benchmark.ips do |x|
x.report "Range#min" do |i|
i.times { (1..100).min }
end

x.report "Range#max" do |i|
i.times { (1..100).max }
end
end

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e