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Optimize Array#max (#3325)

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The benchmark result is below:

|                |compare-ruby|built-ruby|
|:---------------|-----------:|---------:|
|ary2.max        |     38.837M|   40.830M|
|                |           -|     1.05x|
|ary10.max       |     23.035M|   32.626M|
|                |           -|     1.42x|
|ary100.max      |      5.490M|   11.020M|
|                |           -|     2.01x|
|ary500.max      |      1.324M|    2.679M|
|                |           -|     2.02x|
|ary1000.max     |    699.167k|    1.403M|
|                |           -|     2.01x|
|ary2000.max     |    284.321k|  570.446k|
|                |           -|     2.01x|
|ary3000.max     |    282.613k|  571.683k|
|                |           -|     2.02x|
|ary5000.max     |    145.120k|  285.546k|
|                |           -|     1.97x|
|ary10000.max    |     72.102k|  142.831k|
|                |           -|     1.98x|
|ary20000.max    |     36.065k|   72.077k|
|                |           -|     2.00x|
|ary50000.max    |     14.343k|   29.139k|
|                |           -|     2.03x|
|ary100000.max   |      7.586k|   14.472k|
|                |           -|     1.91x|
|ary1000000.max  |     726.915|    1.495k|
|                |           -|     2.06x|
This commit is contained in:
Kenta Murata 2020-07-18 23:45:00 +09:00 • committed by GitHub
parent 9f60ceec54
commit a63f520971
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
Notes: git 2020-07-18 23:45:25 +09:00 
Merged-By: mrkn <mrkn@ruby-lang.org>
5 changed files with 200 additions and 7 deletions
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31
benchmark/array_max_int.yml Normal file
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@ -0,0 +1,31 @@
prelude: |
ary2 = 2.times.to_a.shuffle
ary10 = 10.times.to_a.shuffle
ary100 = 100.times.to_a.shuffle
ary500 = 500.times.to_a.shuffle
ary1000 = 1000.times.to_a.shuffle
ary2000 = 2500.times.to_a.shuffle
ary3000 = 2500.times.to_a.shuffle
ary5000 = 5000.times.to_a.shuffle
ary10000 = 10000.times.to_a.shuffle
ary20000 = 20000.times.to_a.shuffle
ary50000 = 50000.times.to_a.shuffle
ary100000 = 100000.times.to_a.shuffle
ary1000000 = 1000000.times.to_a.shuffle
benchmark:
ary2.max: ary2.max
ary10.max: ary10.max
ary100.max: ary100.max
ary500.max: ary500.max
ary1000.max: ary1000.max
ary2000.max: ary2000.max
ary3000.max: ary3000.max
ary5000.max: ary5000.max
ary10000.max: ary10000.max
ary20000.max: ary20000.max
ary50000.max: ary50000.max
ary100000.max: ary100000.max
ary1000000.max: ary1000000.max
loop_count: 10000